Journal articles: 'Lightweight building materials'

1

Sarmin, Siti Noorbaini. "Lightweight Building Materials of Geopolymer Reinforced Wood Particles Aggregate – A Review." Applied Mechanics and Materials 802 (October 2015): 220–24. http://dx.doi.org/10.4028/www.scientific.net/amm.802.220.

Full text

Abstract:

Lightweight constructions materials provide better thermal insulations properties for buildings. Using lightweight’s aggregates, such like wood particles is one of the most common ways for making lightweight building materials. The low cost and availability of wood particles made it the best ultimate materials preference in production of composites construction materials. Geopolymer, the alkali-activation cement-based materials have been proven can be used to produce lightweight materials. In additional, geopolymer possess excellent mechanical properties and significant reduction in CO2 emissions compare to ordinary Portland cement. The use of environmentally friendly building construction materials has become increasingly important. This paper presents a review on producing lightweight building materials from geopolymer with wood particles as an aggregate.

APA, Harvard, Vancouver, ISO, and other styles

2

Cavalline, Tara L., Jorge Gallegos, Reid W. Castrodale, Charles Freeman, Jerry Liner, and Jody Wall. "Influence of Lightweight Aggregate Concrete Materials on Building Energy Performance." Buildings 11, no. 3 (March 3, 2021): 94. http://dx.doi.org/10.3390/buildings11030094.

Full text

Abstract:

Due to their porous nature, lightweight aggregates have been shown to exhibit thermal properties that are advantageous when used in building materials such as lightweight concrete, grout, mortar, and concrete masonry units. Limited data exist on the thermal properties of materials that incorporate lightweight aggregate where the pore system has not been altered, and very few studies have been performed to quantify the building energy performance of structures constructed using lightweight building materials in commonly utilized structural and building envelope components. In this study, several lightweight concrete and masonry building materials were tested to determine the thermal properties of the bulk materials, providing more accurate inputs to building energy simulation than have previously been used. These properties were used in EnergyPlus building energy simulation models for several types of commercial structures for which materials containing lightweight aggregates are an alternative commonly considered for economic and aesthetic reasons. In a simple model, use of sand lightweight concrete resulted in prediction of 15–17% heating energy savings and 10% cooling energy savings, while use of all lightweight concrete resulted in prediction of approximately 35–40% heating energy savings and 30% cooling energy savings. In more complex EnergyPlus reference models, results indicated superior thermal performance of lightweight aggregate building materials in 48 of 50 building energy simulations. Predicted energy savings for the five models ranged from 0.2% to 6.4%.

APA, Harvard, Vancouver, ISO, and other styles

3

Zhang, Chao, Jie Wan, and Zhen Hua Wang. "New Applications of Glass Materials in Buildings." Applied Mechanics and Materials 204-208 (October 2012): 3859–62. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.3859.

Full text

Abstract:

With the development of economy, architectural form constantly update and development. High-rise buildings, long-span buildings, and Giant buildings are constantly emerging. Building function becomes more and more complicated and diverse. Furthermore, people's aesthetic requirement continues to improve, which makes the glass more and more widely used in public building. Because it is lightweight and transparent, glass has received more and more architect's favor in the modern architecture design.

APA, Harvard, Vancouver, ISO, and other styles

4

Hilmy, Mochamad, and Dewi Ria Indriana. "Pembayangan Mandiri pada Material Bata Ringan di Iklim Tropis." EMARA: Indonesian Journal of Architecture 4, no. 1 (August 7, 2018): 13–20. http://dx.doi.org/10.29080/emara.v4i1.222.

Full text

Abstract:

The purpose of this study was to obtained recommendations on the use of innovative building materials from the development of existing lightweight concrete designs, to decrease the building interior temperature. The research used an engineering experimental method on lightweight concrete as material tested. A profile was attached on the outer side of lightweight concrete in order to formed a shadowed effect and expected to make the building indoor temperature go lower. The result indicated that the shadows shaped by profile attached on the outer side of lightweight concrete not fully effectively in decreasing building indoor temperature. The lightweight concrete thickness affected the velocity of solar thermal radiation impact movement that goes into the buildings interior. The formation of profiles on lightweight concrete surfaces can be decrease the room temperature in at least more than 2°C. The shading was more effective if the profile form in vertical formation. The research output was a lightweight concrete prototype that was able to contribute to decrease the building indoor temperature.

APA, Harvard, Vancouver, ISO, and other styles

5

Yaşar, E., and Y. Erdoğan. "Strength and thermal conductivity in lightweight building materials." Bulletin of Engineering Geology and the Environment 67, no. 4 (August 23, 2008): 513–19. http://dx.doi.org/10.1007/s10064-008-0166-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Takács, Lajos Gábor. "Fire Protection Aspects of Low-Energy Buildings." Advanced Materials Research 899 (February 2014): 543–51. http://dx.doi.org/10.4028/www.scientific.net/amr.899.543.

Full text

Abstract:

Structures of low energy buildings and passive houses are different from traditional buildings: thick thermal insulations often made of combustible materials -, lightweight skeleton frame loadbearing structures, timber frame constructions are common. Based on laboratory tests of lightweight building products, building structure design principles and the first fire events in passive houses, this article summarizes the main fire protection problems of passive house structures and gives recommendations for appropriate construction of these houses in fire protection aspects.

APA, Harvard, Vancouver, ISO, and other styles

7

Yang, Yan Min, and Hao Zhang. "Experimental Study on Flexural Behaviors of All-Lightweight Aggregate Concrete Beams and Slabs." Key Engineering Materials 517 (June 2012): 398–402. http://dx.doi.org/10.4028/www.scientific.net/kem.517.398.

Full text

Abstract:

The use of lightweight and energy saving materials is the main trend of modern building and construction technology. All-lightweight aggregate concrete, which is a new type of lightweight aggregate concrete, not only has all the advantages of light weight concrete but also a lower apparent density of 600kg/m3. At present, the commonly-used energy-saving organic insulation materials include the EPS insulation and polyurethane insulation. The paper presents a new type of all-lightweight inorganic aggregate concrete by replacing organic material, in order to obtain a lightweight, energy-efficient building structure which synthesizes the load-bearing capacity, lightweight and energy-saving. Tests on the flexural behaviors of 11 all-lightweight aggregate concrete beams and 6 slabs were conducted. The effects of steel reinforcement ratio and loading distribution on the flexural and shear behaviors and method to calculate the load carrying capacity were carried out. The feasibility of application of all-lightweight aggregate concrete on multi-story buildings and to replace common reinforced concrete members in bending was discussed. The experimental study in the paper can provide a basis of the lightweight and energy-saving multi-story structure.

APA, Harvard, Vancouver, ISO, and other styles

8

Tsaousi, G. M., L. Profitis, I. Douni, E. Chatzitheodorides, and D. Panias. "Development of lightweight insulating building materials from perlite wastes." Materiales de Construcción 69, no. 333 (January 22, 2019): 175. http://dx.doi.org/10.3989/mc.20198.12517.

Full text

Abstract:

This paper investigates the development of geopolymer foam boards, using perlite wastes as raw material. This type of lightweight materials combines the geopolymerization technology with the foaming process. The mechanism of foaming is based on the generation of a gas that is retained by the geopolymer matrix in the form of individual or interconnected voids. In this study, the inorganic foaming agent is hydrogen peroxide (H2O2), which is added into the initial paste in different quantities by mechanical stirring. The produced porous materials have effective densities between 408–476.5 kg/m3, thermal conductivities between 0.076–0.095 W/m.K and different type of microstructure, depending on the concentration of the activator and the foaming agent content. To assess the porosity and the size distribution of the voids, image processing techniques were applied on digital images of the samples. According to these results, the synthesized lightweight materials exhibit similar or even better thermal properties than the current concrete porous materials.

APA, Harvard, Vancouver, ISO, and other styles

9

Boháčová, Jana, Stanislav Staněk, and Pavel Mec. "Thermal Insulating Alkali-Activated Materials with Lightweight Aggregate." Advanced Materials Research 897 (February 2014): 69–72. http://dx.doi.org/10.4028/www.scientific.net/amr.897.69.

Full text

Abstract:

The paper deals with laboratory research and development of alkali activated system with thermal insulating properties where low density materials are used. The experiment is focused on strength and heat conductivity of prepared substances. In research five kinds of mixtures were prepared. The values of compressive strength and thermal conductivity of tested admixtures qualitatively correspond to commercially available building material. Results are foundations for next lightweight alkali activated system development and research focused on practical application in building industry.

APA, Harvard, Vancouver, ISO, and other styles

10

Tůmová, Eva, and Rostislav Drochytka. "Development of Flooring Materials with Cellular Waste." Advanced Materials Research 688 (May 2013): 172–75. http://dx.doi.org/10.4028/www.scientific.net/amr.688.172.

Full text

Abstract:

In the development of floor structures new building materials, additives, fillers and secondary raw materials of various properties are increasingly used. It is possible to develop new types of materials with different mechanical properties. Lightweight construction materials are the essential element for industrial floors lightening and thereby for reduce of their weight. This is especially beneficial for multi-storey buildings.

APA, Harvard, Vancouver, ISO, and other styles

11

Medvedeva, G., and A. Lifant'eva A.F. "THE RESEARCH OF MULTILAYER OUTER FENCING INCLUDING MATERIALS USING ASH AND SLAG WASTE OF THERMAL POWER PLANTS." Construction Materials and Products 3, no. 2 (July 10, 2020): 29–35. http://dx.doi.org/10.34031/2618-7183-2020-3-2-29-35.

Full text

Abstract:

the most important direction of resource saving in construction is the widespread use of secondary material resources, which are waste products. The use of secondary products of industry as raw materials for the production of various building materials is very important, because it provides production with rich sources of cheap and, often, already prepared raw materials; lead to lower costs for the production of some building materials, and therefore saves capital investments intended for the construction of buildings and structures; release large areas of land and reduce the impact on the environment. The article deals with heat-insulating and structural-heat-insulating materials, with partial replacement of components by ash-slag waste (ASW): lightweight concretes with broken glass and concretes modified with sulfur. Properties of concretes modified with sulfur are investigated: compressive strength, density and thermal conductivity. In accordance with the obtained properties, a comparative characteristics of the received materials with existing building materials was carried out: sulfur modified concrete and lightweight concrete; lightweight concrete using broken glass and claydite-concrete. Thermophysical calculation of multilayer hencing is made. In each of the options, one of the following materials was selected as a structural and heat-insulating material: lightweight concrete using broken glass and sulfur modified concrete. Also, for each type of hencing, the necessary heat-insulating and structural materials were selected. In the economic part, the cost of the raw materials necessary to obtain 1 m3 of the investigated materials and the cost of 1 m3 of multilayer hencing, which includes the investigated concrete, are calculated.

APA, Harvard, Vancouver, ISO, and other styles

12

Dmitrienko, Vladimir, Nadejda Dmitrienko, and Аleksandr Bogomazov. "Impact of “wet conservation” of mining enterprises on constructing buildings of lightweight materials." E3S Web of Conferences 284 (2021): 05013. http://dx.doi.org/10.1051/e3sconf/202128405013.

Full text

Abstract:

The analysis of the influence of flooding of the developed areas of closed mining enterprises on the mechanical characteristics of clay rocks is given. The deformation characteristics of clay shale under prolonged moistening conditions have been experimentally established and proved. Simulation of stress-strain state of soil massifs and building structures by method of finite elements is considered and the influence of power of developed spaces on settlement of building foundations of buildings of light materials is established. The distribution of vertical displacements in the rock massif is presented, the graphs of the dependence of the foundation settlement on the excavation power are plotted, the excess of the standard values of settlement is noted when buildings are located directly above the preparing workings.

APA, Harvard, Vancouver, ISO, and other styles

13

Wu, Hwai-Chung, and Peijiang Sun. "New building materials from fly ash-based lightweight inorganic polymer." Construction and Building Materials 21, no. 1 (January 2007): 211–17. http://dx.doi.org/10.1016/j.conbuildmat.2005.06.052.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Tokhtamuratov, D. M., A. B. Sirojiddinov, B. V. Bahabov, and B. A. Muslimov. "The Application Of Intumescent Compounds As A Means Of Providing Fire Protection Of Building Materials." American Journal of Interdisciplinary Innovations and Research 03, no. 01 (January 23, 2021): 19–24. http://dx.doi.org/10.37547/tajiir/volume03issue01-03.

Full text

Abstract:

The research paper analyzes the use of intumescent compounds as a means of providing fire protection for building materials. The need to use lightweight coatings is indicated. Along with other intumescent compositions developed in a number of foreign countries, the author pays special attention to the experience of American specialists who have developed a method for producing mixed compositions from silicate materials with fillers in the form of mica and vermiculite, characterized by increased porosity and intended for use in the manufacture of fire-resistant building products and fire retardant coatings. for building structures.

APA, Harvard, Vancouver, ISO, and other styles

15

Reif, Martina, Jiri Zach, and Vítězslav Novák. "Possibilities of Binding Recycled Glass in Production of Advanced Building Materials." Materials Science Forum 865 (August 2016): 255–60. http://dx.doi.org/10.4028/www.scientific.net/msf.865.255.

Full text

Abstract:

The use of secondary raw material resources for construction purposes currently has a great potential. Secondary raw materials obtained by recycling waste glass find use (among others) in the production of thermal and acoustic insulation, production of lightweight concrete mixes and also in transportation engineering e.g. in road reconstruction.The paper deals with the possibilities of binding lightweight aggregate based on waste glass powder and with the production of advanced composite materials with good thermal insulation and acoustic properties. This means cement, epoxy resin and bituminous matrix with the goal to develop advanced building materials that could find further use as, for example, thermal insulation materials.

APA, Harvard, Vancouver, ISO, and other styles

16

Dunaevskaya, Julia, Daria Zaborova, Artemy Churakov, and Artem Korsun. "Influence of Cladding Material on the Vapor Permeability of Lightweight Expanded Clay Aggregate (LECA) Concrete." Applied Mechanics and Materials 725-726 (January 2015): 529–36. http://dx.doi.org/10.4028/www.scientific.net/amm.725-726.529.

Full text

Abstract:

The demand for town houses using the constructions of lightweight conrete is growing rapidly in recent time. One of the most common building materials for cottage construction is lightweight aggregate blocks. An important role for lightweight expanded clay aggregate (LECA) concrete plays such a property as vapor permeability. This paper presents the results of vapor permeability test of the samples, the analysis and recommendations for construction of the building. These samples were taken from the LECA concrete blocks covered by unidentified cladding, of which one of the town houses was under construction in the North-West of Russia. An assumption has been made that the unidentified cladding may cause losses to the building’s wall enclosure.

APA, Harvard, Vancouver, ISO, and other styles

17

Chiadighikaobi, Paschal Chimeremeze, Vladimir Jean Paul, and Christopher Kneel Stewart Brown. "The Effectiveness of Basalt Fiber in Lightweight Expanded Clay to Improve the Strength of Concrete Helicoidal Staircase." Materials Science Forum 1034 (June 15, 2021): 187–92. http://dx.doi.org/10.4028/www.scientific.net/msf.1034.187.

Full text

Abstract:

Staircase is a very important structural element found in mostly buildings of more than a floor. The properties of materials and designs used in constructing this structural element are very important. This study addresses the development of ultra-lightweight concrete. How ultra-lightweight concrete can effectively work in helicoidal structure. The flexural strength of this staircase was analysed on a finite element software SCAD. The designed lightweight aggregates concrete is targeted to be used in staircase of a structure having the shape of helicoid. In the concrete, chopped basalt fiber portion was added to each concrete mixture specimen reinforced as reinforcement. The basalt fiber percentages used are 0, 0.45, 0.9, 1.2 and 1.6. The developed lightweight expanded clay basalt fiber concrete showed significant increase in the flexural strength. The loads applied on this helicoidal concrete staircase in SCAD were derived from the laboratory experiments conducted on the concrete specimens on the 28 days curing period. This combination of values exceeds, to the researchers' knowledge, the performance of all other lightweight building materials. Furthermore, the developed lightweight concrete possesses excellent durability properties.

APA, Harvard, Vancouver, ISO, and other styles

18

Ma, Jing Yuan, Fu Ma, Chen Suo Hu, and Zhi Xian Wen. "Seismic Design of the High-Rise Building Structure and Sustainable Development." Applied Mechanics and Materials 351-352 (August 2013): 536–40. http://dx.doi.org/10.4028/www.scientific.net/amm.351-352.536.

Full text

Abstract:

This article summarized seismic design method of high-rise building from seismic fortification goal, use of materials, structural systems, analysis methods and trends. Then it discussed the structural design significance of high-rise buildings to achieve sustainable development. Lightweight quality, high strength material, diversity type, spatial component, braced lateral force resisting system, structuring combination and shock absorption building are the trends of high-rise building development.

APA, Harvard, Vancouver, ISO, and other styles

19

Shon, Chang Seon, Miras Mamirov, Earl M. Stenger, and Chul Woo Chung. "Thermal Performance of Lightweight Aggregate Concrete Containing Expanded Shale Aggregates." Materials Science Forum 911 (January 2018): 71–76. http://dx.doi.org/10.4028/www.scientific.net/msf.911.71.

Full text

Abstract:

Achieving energy efficiency of building in north part of Kazakhstan is very critical due to the large temperature difference during long harsh and severe winter and short hot summer seasons. Energy efficient building shows significant savings to homeowners including costs reduction from energy, water, waste, and lower operations and maintenance costs. In terms of building materials, lightweight aggregate concrete (LWAC) due to its thermal properties is often used to maintain thermal comfort levels in buildings and to reduce building energy consumption. In this paper, the potential of LWAC to improve the energy performance of building was assessed for LWAC with three different mixture proportions and a normal weight concrete (NWC) for comparison purpose. The energy saving effect of LWAC was simulated using OpenStudio software tools with an EnergyPlus engine. Moreover, annual heat loss and amount of heat transfer of construction wall of building were calculated. Results showed that LWAC can improve the energy efficiency of building and thus the use of LWAC can be a good alternative to the traditional NWC.

APA, Harvard, Vancouver, ISO, and other styles

20

Mahawan, Jiraphorn, Somchai Maneewan, Tanapon Patanin, and Atthakorn Thongtha. "Investigation of Physical, Mechanical and Thermal Properties of Building Wall Materials." Key Engineering Materials 751 (August 2017): 521–26. http://dx.doi.org/10.4028/www.scientific.net/kem.751.521.

Full text

Abstract:

This research concentrates to the effect of changing sand proportion on the physical, mechanical and thermal properties of building wall materials (Cellular lightweight concrete). The density, water absorption and compressive strength of the 7.0 cm x 7.0 cm x 7.0 cm concrete sample were studied. It was found that there are an increase of density and a reduction of water absorption with an increase of sand content. The higher compressive strength can be confirmed by higher density and lower water absorption. The physical and mechanical properties of lightweight concrete conditions conformed to the Thai Industrial Standard 2601-2013. The phases of CaCO3 and calcium silicate hydrate (C-S-H) in the material indicate an important factor in thermal insulating performance.

APA, Harvard, Vancouver, ISO, and other styles

21

Ferreira, Elisa S., Camila A. Rezende, and Emily D. Cranston. "Fundamentals of cellulose lightweight materials: bio-based assemblies with tailored properties." Green Chemistry 23, no. 10 (2021): 3542–68. http://dx.doi.org/10.1039/d1gc00326g.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Zavrl, Eva, Gašper Zupanc, Uroš Stritih, and Mateja Dovjak. "Overheating Reduction in Lightweight Framed Buildings with Application of Phase Change Materials." Strojniški vestnik – Journal of Mechanical Engineering, Volume 66, Issue 1 (December 20, 2019): 3–14. http://dx.doi.org/10.5545/sv-jme.2019.6244.

Full text

Abstract:

The trend of lightweight framed building structures is gaining in popularity. Due to lower accumulation capability and thermal stability, buildings might be inclined to higher risk of overheating. The purpose of this study is to investigate overheating in lightweight framed buildings from the aspect of thermal comfort and energy efficiency in cooling season. Single-family house was modelled using DesignBuilder™ and located in moderate climate (Ljubljana, Slovenia). Heavyweight structure was compared to lightweight structure coupled with all 14 variations of phase change materials (PCM). Different strategies of PCM encapsulation (microencapsulated plasterboards, macroencapsulated additional layer), melting points (23°C, 24°C, 25°C, 26°C, 27°C), capacities (M182, M91 M51, M27) and thicknesses (125 mm, 250 mm) of PCM were investigated and compared. The best passive solution was primarily evaluated based on the thermal comfort characteristics: average zone operative temperature (To) bends in cooling season. Secondarily, the additional energy needed for cooling within each solution was compared to the maximum allowed annual energy consumed for cooling specified in legislation. Consequently, the most influential parameter was the melting point of the PCM structure. Based on the chosen criteria, the overheating was significantly reduced using macroencapsulated layer with melting point of 24°C and minimum capacity of M51 (max. To 26.3°C). Heavyweight structure enabled lower To (27.1°C) in the building compared to microencapsulated plasterboard solution with melting point at 23°C and thickness of 250 mm (28.8°C). Correctly designed passive solution can be used for the improvement of the design strategy and legislation towards overheating prevention.

APA, Harvard, Vancouver, ISO, and other styles

23

Akinyemi, Banjo, Temidayo E. Omoniyi, Olugbenga Elemile, and Oluwafemi Arowofila. "Innovative Husk-Crete Building Materials from Rice Chaff and Modified Cement Mortars." Acta Technologica Agriculturae 23, no. 2 (June 1, 2020): 67–72. http://dx.doi.org/10.2478/ata-2020-0011.

Full text

Abstract:

AbstractThe study considers the use of rice chaffs (husks) as an aggregate in a composite cement matrix system. Cement mortars were modified using styrene butadiene rubber polymer for strengthening. The goal is to develop a lightweight building material with good thermal insulation properties out of agricultural waste. The compressive strength, split tensile strength and flexural strength were experimentally evaluated. Further analyses of the samples were carried out by means of scanning electron microscope and energy dispersive spectroscopy. The key results obtained were presented and analysed with the performance of the proposed husk-crete building material showing adequate properties essential for a lightweight structural material with possible applications for non-structural purposes.

APA, Harvard, Vancouver, ISO, and other styles

24

Agrawal, Yash, Trilok Gupta, Ravi Sharma, Narayan Lal Panwar, and Salman Siddique. "A Comprehensive Review on the Performance of Structural Lightweight Aggregate Concrete for Sustainable Construction." Construction Materials 1, no. 1 (April 7, 2021): 39–62. http://dx.doi.org/10.3390/constrmater1010003.

Full text

Abstract:

Lightweight aggregate concrete is an innovative building material used to reduce the self-weight of a high-rise building. Recently, the use of lightweight aggregate in construction is increasing immensely due to its performance during an earthquake. Lightweight aggregate concrete (LWAC) is a solution for the achievement of sustainability in the construction sector, which helps us cut down the overall cost of a project in massive construction work (tall buildings and bridges). Additionally, using various industrial by-products and waste instead of natural aggregate allows us to reduce the negative impact on the environment. The development of lightweight aggregate concrete with its relevance is still prominent. The performance of lightweight aggregate on various properties of concrete is explored in this study. This study shows that the lightweight aggregate and waste materials of less density can be used for structural applications with a strength equivalent to that of normal weight concrete. The application and advantages of LWAC are also discussed in this study. The paper’s overall finding reveals that LWAC can be used in sustainable construction growth and reduce waste by using it as natural aggregate in concrete to maintain environmental sustainability.

APA, Harvard, Vancouver, ISO, and other styles

25

Iringová, Agnes. "The use of recycled waste products in a sustainable house design - a case study." MATEC Web of Conferences 196 (2018): 04051. http://dx.doi.org/10.1051/matecconf/201819604051.

Full text

Abstract:

The current state of waste production and management in Slovakia. Legislative regulations. Analysis of applying recycled waste products in the construction of sustainable buildings as a substitution of non-renewable materials. The comparison of the physical parameters of recycled materials with non-renewable materials in terms of thermal and fire protection. The construction solution of lightweight building envelopes with a timber supporting system using the thermal insulation and facing made of recycled materials. The model solution of a wood-based family house using recycled waste materials. The comparison of the environmental burden of a standard lightweight sandwich peripheral wall with a recycled waste wall.

APA, Harvard, Vancouver, ISO, and other styles

26

HARA, Naomichi. "Utilization of Rice Husk Ash for Calcium Silicate Lightweight Building Materials." Journal of the Mineralogical Society of Japan 18, no. 6 (1989): 405–15. http://dx.doi.org/10.2465/gkk1952.18.405.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Wang, Her-Yung, Darn-Horng Hsiao, and Shi-Yang Wang. "Properties of recycled green building materials applied in lightweight aggregate concrete." Computers & concrete 10, no. 2 (August 25, 2012): 95–104. http://dx.doi.org/10.12989/cac.2012.10.2.095.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Davies, Luke, Jamie Bull, and Tomasz Kucki. "Lightweight backfill materials in integral bridge construction." Proceedings of the Institution of Civil Engineers - Bridge Engineering 167, no. 1 (March 2014): 3–16. http://dx.doi.org/10.1680/bren.10.00051.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Peterková, Jitka, Jiri Zach, Martin Sedlmajer, and Azra Korjenic. "Development of Lightweight, Remediation Plasters and Study of their Moisture Behavior." Key Engineering Materials 714 (September 2016): 72–77. http://dx.doi.org/10.4028/www.scientific.net/kem.714.72.

Full text

Abstract:

One of the strategic goals of Europe 2020 is the reduction of greenhouse gas emissions by 20 % by 2020 compared to year 1990 and increasing energy efficiency by 20 %. Closely related to the revitalization of structures necessary for reasons reduction of their unsatisfactory energy consumption and then also the construction of new building structures with minimal energy requirements by using less energy demanding materials, if is it possible from easily renewable resources. Currently, the structures involved a high degree of total energy consumption in the European Union, about 40 %. Thermal insulating plasters with using lightweight aggregate based on recycled glass are the appropriate remediation materials for the rehabilitation of existing buildings, or even for thermal insulation of new structures. In view of the fact that historic buildings are often exposed to dampness and moisture, it is necessary for these redevelopment plasters also tackle studios moisture transport. The paper describes the results of the development of new insulating plasters that would have been reflected particularly in the rehabilitation of historic buildings and problematic details of building structures.

APA, Harvard, Vancouver, ISO, and other styles

30

Pratiwi, Sri Novianthi. "ANALISIS ENERGI PADA BERBAGAI MATERIAL DINDING (BATA, BATAKO DAN BATA RINGAN)." Jurnal Arsitektur ARCADE 4, no. 3 (November 19, 2020): 276. http://dx.doi.org/10.31848/arcade.v4i3.543.

Full text

Abstract:

In building design, the selection of building materials is one aspect that needs to be considered. Building materials are components that require energy in the manufacturing process. In the process of building material production, the use of energy at each stage becomes one of the parameters of CO2 carbon emission levels. The higher the use of fossil energy, the higher the CO2 emissions and the risk of causing global warming. Bricks, concrete blocks, and lightweight bricks are the types of materials commonly used to make building walls. The selection of wall materials is still largely related to price or aesthetic considerations, but the assessment of the level of environmental friendliness is still lacking in attention. This study tries to analyse the life cycle of energy in wall materials (bricks, concrete blocks and lightweight bricks). From the research results obtained, concrete block is the lowest material in the use of production energy.

APA, Harvard, Vancouver, ISO, and other styles

31

Abdou Lawane, Gana, Adamah Messan, Anne Pantet, Raffaele Vinai, and Jean Hugues Thomassin. "Local Materials for Building Houses: Laterite Valorization in Africa." Advanced Materials Research 875-877 (February 2014): 324–27. http://dx.doi.org/10.4028/www.scientific.net/amr.875-877.324.

Full text

Abstract:

This paper presents the preliminary results of geological and geomechanical studies on the laterite stone exploited at Dano quarry in Burkina Faso. The field work described the geological structure of quarry sites and their environment to determine the rocks alteration and the links between the bedrock and lateritic material. Physic-mechanical properties have been studied for assessing the potentiality of this material for lightweight housing, to be completed with thermal and environmental considerations. Some social and economic evaluations are in progress in order to foster its utilization under local conditions

APA, Harvard, Vancouver, ISO, and other styles

32

Khater, H. M. "Development and characterization of sustainable lightweight geopolymer composites." Cerâmica 65, no. 373 (January 2019): 153–61. http://dx.doi.org/10.1590/0366-69132019653732551.

Full text

Abstract:

Abstract Production of lightweight building materials attract the attention of the scientists worldwide with the need for reducing the structure deadweight, provide better thermal insulation for buildings, and cost less to transport. The current work focused on the production of lightweight geopolymer composites by the incorporation of aluminum powder and aluminum slag in various ratios for water-cooled slag/kaolinite sand composite; the activators used were 6% of equal ratio from sodium hydroxide and sodium silicate. The properties of the produced lightweight geopolymer composites were studied by measurement of compressive strength, bulk density, water absorption, FTIR, XRD and SEM imaging. Results showed the enhancement for both physicomechanical and microstructural characteristics with using aluminum powder and aluminum slag forming lightweight composites with densities below 2.15 g/cm3 depending on the studied mix composition.

APA, Harvard, Vancouver, ISO, and other styles

33

Kumar, Dileep, Patrick X. W. Zou, Rizwan Ahmed Memon, MD Morshed Alam, Jay G. Sanjayan, and Sanjay Kumar. "Life-cycle cost analysis of building wall and insulation materials." Journal of Building Physics 43, no. 5 (June 27, 2019): 428–55. http://dx.doi.org/10.1177/1744259119857749.

Full text

Abstract:

Heat transfer through building opaque envelope is responsible for approximately half of the total heat loss and gain to and from the surroundings. Therefore, insulation materials are commonly used in the building envelope to reduce the heat transfer. Recently, lightweight wall materials with lower thermal conductivity are used in construction along with the commonly used materials such as heavy concrete and earthen materials. In this perspective, there is a need to understand the optimum insulation thickness for different types of building construction materials to minimize unnecessary usage of insulation materials. This study investigated the optimum insulation thickness for different construction materials following a life-cycle approach, where an analytical optimization methodology based on the degree-days method and life-cycle cost analysis was used. In total, 4 insulation materials and 15 building construction materials were considered in the optimization study. The objective function was to minimize life-cycle cost corresponding to the decision variables including insulation thickness and the thermal conductivity of insulation and wall materials. The results showed that the use of insulation in lightweight wall materials is not economically feasible because of their negligible cost-saving potential (below US$2.5/m2-year). However, the walls with heavy concrete and earthen materials that have high thermal mass must be insulated due to their highest cost-saving potential (US$14–26.39/m2-year).

APA, Harvard, Vancouver, ISO, and other styles

34

Liška, Pavel, and Barbora Nečasová. "Revitalisation of Lightweight Cladding of Buildings." Key Engineering Materials 868 (October 2020): 127–34. http://dx.doi.org/10.4028/www.scientific.net/kem.868.127.

Full text

Abstract:

The basic function of building cladding is to protect the interior against the effects of the external environment. To fulfil this function, cladding must have good thermal and technical properties. The development of construction industry in the then Czechoslovakia after World War II led to higher demands on the construction of administrative and civil buildings in terms of capacity and speed of construction. To achieve these aspects, the construction industry was industrialised. The execution of building cladding with light prefabricated structures allowed to pre-define the required product quality and guarantee its sustainability for the time. On the other hand, due to technological indiscipline, low durability of used materials, poor sophistication of construction details and thermal and technical parameters of the structure, there were many problems which resulted in gradual degradation of these structures and increased necessity of their revitalisation. There are many ways to revitalise these structures on the Czech construction market. In general, contemporary revitalisation systems can be divided into three basic groups. These groups represent the individual stages of revitalisation. The first stage of revitalisation is simply the replacement of window panes. Another (second) stage is the replacement of window panes together with the modification of the panel part of the original structure. The last (third) stage is a complete replacement of the existing cladding with a new one. To evaluate the effectiveness of revitalisation, it was necessary to create a simulated building to which the design variants of these revitalisations were applied. It is clear from the simulation results that the best result is achieved in the second stage of revitalisation, where the window panes are replaced and the panel part of the original cladding is modified. This achieves the optimum ratio of expended financial costs for revitalisation and improvement of the thermal and technical properties of the structure.

APA, Harvard, Vancouver, ISO, and other styles

35

Thaib, Razali. "Experimental Study of Beeswax / Rice Husk Ash Phase Changes Material as Energy Storage in Concrete." European Journal of Engineering and Technology Research 6, no. 3 (April 13, 2021): 34–37. http://dx.doi.org/10.24018/ejers.2021.6.3.2411.

Full text

Abstract:

Buildings with lightweight concrete are currently used as a solution for mass housing construction which is relatively cheaper, although it does not provide indoor thermal comfort due to the use of this building material. Lightweight concrete building materials are able to store heat for a long time, so that at night the heat is released indoors. The combination of building materials and PCM is an efficient way to increase the storage capacity of thermal energy in building components. The purpose of this study was to determine the compressive strength of the concrete if the coarse aggregate (gravel) was replaced by part of the gravel material using the Phase Change Material of beeswax (beeswax) according to the required percentage starting from 0%, 5%, 10%, 15% and if the aggregate was fine. (Sand) is partially replaced aby using Rice husk ash with various variations starting from 0%, 5%, 10%, 15%. In addition, this utilization is a good alternative, because there will be a process of utilizing rice husk ash which was previously wasted while these items can be used or processed into additives to the concrete mixture.

APA, Harvard, Vancouver, ISO, and other styles

36

Seong, Yoon-Bok, and Jae-Han Lim. "Energy Saving Potentials of Phase Change Materials Applied to Lightweight Building Envelopes." Energies 6, no. 10 (October 14, 2013): 5219–30. http://dx.doi.org/10.3390/en6105219.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Hung, Fei-Shuo. "Design of lightweight aluminum alloy building materials for corrosion and wear resistance." Emerging Materials Research 9, no. 3 (September 1, 2020): 750–57. http://dx.doi.org/10.1680/jemmr.19.00177.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Karade, Sukhdeo R. "Potential of Cork Cement Composite as a Thermal Insulation Material." Key Engineering Materials 666 (October 2015): 17–29. http://dx.doi.org/10.4028/www.scientific.net/kem.666.17.

Full text

Abstract:

The growing environmental concern throughout the globe has led architects & engineers to design energy efficient buildings. Consequently, they are looking for building materials that can reduce the energy consumption in buildings to maintain the comfort level. Use of proper thermal insulating materials can reduce the energy required for heating or cooling of the buildings. Presently mineral wool and various foams are used for this purpose. Efforts are being made to use wastes in making thermal insulation materials so that the impact on environment can be further reduced. Cork granules are obtained as waste from the cork processing industries that make ‘bottle stoppers’ as a main product. These granules have a low density and could be used as lightweight aggregates for making concrete with low thermal conductivity. This article describes the physico-mechanical properties of lightweight cementitious composites made using cork granules. Further, environmental benefits of their application in thermal insulation of buildings has been discussed.

APA, Harvard, Vancouver, ISO, and other styles

39

Tůmová, Eva, and Rostislav Drochytka. "Development of a New Kind of Aerated Screeds for Lightweight Floors." Advanced Materials Research 897 (February 2014): 215–19. http://dx.doi.org/10.4028/www.scientific.net/amr.897.215.

Full text

Abstract:

This paper is focused mainly on analyzing the possibility of combining direct and indirect lightening of building materials, especially the combination of lightweight porous aggregates in combination with aerated concrete respectively. As a part of indirect lightening the lightweight inorganic aggregate will be described.

APA, Harvard, Vancouver, ISO, and other styles

40

Jangeldinov, Baurzhan, Shazim Ali Memon, Jong Kim, and Marzhan Kabdrakhmanova. "Evaluating the Energy Efficiency of PCM-Integrated Lightweight Steel-Framed Building in Eight Different Cities of Warm Summer Humid Continental Climate." Advances in Materials Science and Engineering 2020 (March 16, 2020): 1–16. http://dx.doi.org/10.1155/2020/4381495.

Full text

Abstract:

Phase change materials have been applied to a building framework to decrease energy and fossil fuel consumption as well as make the building sector more sustainable. Lightweight structures are attractive and increasingly being used in residential buildings. Hence, in this research, the energy efficiency and thermal performance of buildings located in eight various cities (Helsinki, Kiev, Saint Petersburg, Moscow, Stockholm, Toronto, Montreal, and Kiev) of warm summer humid continental climate (Dfb) were evaluated. The impact of heating and cooling energy savings pattern on the selection of optimum phase change material for each city has been demonstrated. In addition, the impact of volume of PCM, precisely the effect of varying and constant volume, on energy savings was assessed for the lightweight steel-framed building. Simulations were performed in EnergyPlus by applying eleven melting temperature ranges of PCM. Test results demonstrated that energy savings were higher in the swing season and the maximum temperature reduced during these months was 3.3°C. Heating and cooling energy savings were found to strongly influence the selection of optimum PCM. In cities where cooling energy savings were the highest, the optimum PCMs were PCMs 24-26 while in cities where heating energy savings were the highest, the optimum PCM was found to be PCM 21. For constant volume, the performance of optimum PCM raised when the surface area was enlarged, while the thickness of PCM was reduced. Overall, the application of PCM into lightweight steel-framed residential structure located in warm summer humid continental climate region is a feasible option.

APA, Harvard, Vancouver, ISO, and other styles

41

Doğan-Sağlamtimur, Neslihan, Adnan Güven, and Ahmet Bilgil. "Physical and Mechanical Properties of Cemented Ash-Based Lightweight Building Materials with and without Pumice." Advances in Materials Science and Engineering 2018 (2018): 1–12. http://dx.doi.org/10.1155/2018/9368787.

Full text

Abstract:

Pumice, cements (CEM I- and CEM II-type), waste fly and bottom ashes (IFA, GBA, and BBA) supplied from international companies were used to produce lightweight building materials, and physical-mechanical properties of these materials were determined. Axial compressive strength (ACS) values were found above the standards of 4 and 8 MPa (Bims Concrete (BC) 40 and 80 kgf/cm2 class) for cemented (CEM I) pumice-based samples. On the contrary, the ACS values of the pumice-based cemented (CEM II) samples could not be reached to these standards. Best ACS results (compatible with BC80) from these cemented lightweight material samples produced with the ashes were found in 50% mixing ratio as 10.6, 13.2, and 20.5 MPa for BBA + CEM I, GBA + CEM II, and IFA + CEM I, respectively, and produced with pumice were found as 8.4 MPa (same value) for GBA + pumice + CEM II (in 25% mixing ratio), BBA + pumice + CEM I (in 100% mixing ratio), and pumice + IFA + CEM I (in 100% mixing ratio), respectively. According to the results, cemented ash-based lightweight building material produced with and without pumice could widely be used for constructive purposes. As a result of this study, an important input to the ecosystem has been provided using waste ashes, whose storage constitutes a problem.

APA, Harvard, Vancouver, ISO, and other styles

42

Wang, Jiyu, Kai Zheng, Na Cui, Xin Cheng, Kai Ren, Pengkun Hou, Lichao Feng, Zonghui Zhou, and Ning Xie. "Green and Durable Lightweight Aggregate Concrete: The Role of Waste and Recycled Materials." Materials 13, no. 13 (July 7, 2020): 3041. http://dx.doi.org/10.3390/ma13133041.

Full text

Abstract:

Lightweight aggregate concrete manufactured by solid waste or recycled by-products is a burgeoning topic in construction and building materials. It has significant merits in mitigating the negative impact on the environment during the manufacturing of Portland cement and reduces the consumption of natural resources. In this review article, the agricultural and industrial wastes and by-products, which were used as cementitious materials and artificial lightweight aggregate concrete, are summarized. Besides, the mechanical properties, durability, and a few advanced microstructure characterization methods were reviewed as well. This review also provides a look to the future research trends that may help address the challenges or further enhance the environmental benefits of lightweight aggregate concrete manufactured with solid waste and recycled by-products.

APA, Harvard, Vancouver, ISO, and other styles

43

WANG, Ting, Xiaojian GAO, and Jian WANG. "Preparation of Foamed Phosphogypsum Lightweight Materials by Incorporating Cementitious Additives." Materials Science 25, no. 3 (May 10, 2019): 340–47. http://dx.doi.org/10.5755/j01.ms.25.3.19910.

Full text

Abstract:

As a byproduct of phosphoric acid industry, phosphogypsum has many environmental problems. In order to recycle phosphogypsum to manufacture lightweight building materials, cementitious additives including fly ash, ground granulate blast-furnace slag and Portland cement were added to improve strength and water-resistance and different volume of foam was added to reduce the bulk density. The results show that hydrated lime can improve mechanical strength and water resistance of PG paste and the optimal dosage of hydrated lime is 6 %. Higher addition of fly ash or ground granulated blast-furnace slag improves the fluidity and delays the setting time of PG paste. The addition of 10 ~ 20 % fly ash results in a little reducing influence and 10 % ground granulated blast-furnace slag leads to an increase of 20.7 % for 28 days compressive strength of hardened PG specimen. The higher addition of Portland cement results in the better mechanical strength and water resistance of PG specimens. The 28day compressive and flexural strength reaches 25.9 MPa and 8.9 MPa respectively for the 25 % Portland cement mixture. PG based lightweight building materials can prepared by the addition of 60 % volume of air foam, with compressive strength of 1.7 MPa, bulk density of 521.7 kg/m3 and thermal conductivity of 0.0724 W/(m·K). DOI: http://dx.doi.org/10.5755/j01.ms.25.3.19910

APA, Harvard, Vancouver, ISO, and other styles

44

Sekler, Ivana, Suncica Vjestica, Vladimir Jankovic, Slobodan Stefanovic, and Vladica Ristic. "Miscanthus x giganteus as a building material - lightweight concrete." Chemical Industry 75, no. 3 (2021): 147–54. http://dx.doi.org/10.2298/hemind201116013s.

Full text

Abstract:

A perennial plant Miscanthus x giganteus has found its habitat and multiple applications in Europe, despite the fact that it originates from Asia. This study presents the potential use of this plant in new lightweight concrete materials so-called bio-concretes. The above-ground part of the plant was harvested, dried, crushed, and mixed with binders in different proportions. After casting and drying, the samples were characterized physical and mechanical properties. The results have shown that the sample with a higher content of binders while smaller miscanthus granulation and casted in molds under higher pressure exhibited the highest values of the compressive strength and density. In specific, the density was in the order of magnitude of that reported for other types of lightweight concrete with organic fillers, such as sawdust-based concrete ("Durisol"), which further justifies the use of miscanthus for these purposes.

APA, Harvard, Vancouver, ISO, and other styles

45

Žilinský, Juraj, and Milan Vanc. "Applied Aerodynamics in Building." Advanced Materials Research 855 (December 2013): 164–67. http://dx.doi.org/10.4028/www.scientific.net/amr.855.164.

Full text

Abstract:

Development of new materials, high strength concrete, steels, composites, new construction techniques and procedures put the Development of new materials, high strength concrete, steels, composites, new construction techniques and procedures put the foundations of a new generation of buildings. With the advent of advanced computer technology, using the finite element method engineers and architects plan and construct buildings that are, high, flexible, thin and lightweight. These buildings, however, are burdened by aerodynamic forces, whose source is wind. Just the action of aerodynamic forces adversely affects their ability to traffic, reducing safety and durability. It is therefore necessary to provide high flexibility structures and maintain their safety. This can only be achieved by means of applied aerodynamics using various types of passive and active components to optimize aerodynamics of buildings.

APA, Harvard, Vancouver, ISO, and other styles

46

IMASAWA, Kouichi, Masatoshi HORIGUCHI, and Yoshinori KITSUTAKA. "STUDY OF XONOTLITE - BASED AUTOCLAVED LIGHTWEIGHT AERATED CONCRETE WITH CEMENTITIOUS MATERIALS." Journal of Structural and Construction Engineering (Transactions of AIJ) 85, no. 778 (2020): 1525–31. http://dx.doi.org/10.3130/aijs.85.1525.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Wang, Hong Zhen. "Study on the Load-Bearing Microcellular Foam Concrete and the New Process of its Product." Applied Mechanics and Materials 584-586 (July 2014): 1470–76. http://dx.doi.org/10.4028/www.scientific.net/amm.584-586.1470.

Full text

Abstract:

In this paper, through the test to determine the blast furnace slag lightweight aggregate, cement as cementitious material, with various additives for the performance adjustment material, high strength lightweight material made of best fit of porous concrete material ratio, studied influence of raw materials on the performance of each group and production technology of its building load-bearing products .

APA, Harvard, Vancouver, ISO, and other styles

48

Berggren, Björn, and Maria Wall. "Review of Constructions and Materials Used in Swedish Residential Buildings during the Post-War Peak of Production." Buildings 9, no. 4 (April 23, 2019): 99. http://dx.doi.org/10.3390/buildings9040099.

Full text

Abstract:

One of the greatest challenges for the world today is the reduction of greenhouse gas emissions. As buildings contribute to almost a quarter of the greenhouse gas emissions worldwide, reducing the energy use of the existing building stock is an important measure for climate change mitigation. In order to increase the renovation pace, there is a need for a comprehensive technical documentation that describes different types of buildings in the existing building stock. The purpose of this study is to analyse and describe existing residential buildings in Sweden. The data are based on published reports from 1967 to 1994 that have not been publicly available in a database for other researchers to study until now. Data from the reports have been transferred to a database and analysed to create a reference for buildings and/or a description of building typology in Sweden. This study found that there is a rather large homogeneity in the existing residential building stock. However, it is not possible to use a single reference building or building technique to cover the majority of the existing buildings. In Sweden, common constructions for exterior walls in multi-dwelling buildings which should be used for further studies are insulated wood infill walls with clay brick façades, lightweight concrete walls with rendered façades and concrete sandwich walls. The most common constructions for one- and two-dwelling buildings are insulated wooden walls with clay brick façades or wooden façades. Furthermore, roof constructions with insulated tie beam and roof constructions where the tie beam is a part of the interior floor slab are frequently used and should be included in further studies.

APA, Harvard, Vancouver, ISO, and other styles

49

Nguyen, Thuc Boi Huyen, and Hoc Thang Nguyen. "Lightweight Panel for Building Construction Based on Honeycomb Paper Composite/Core-Fiberglass Composite/Face Materials." Nano Hybrids and Composites 32 (April 2021): 15–23. http://dx.doi.org/10.4028/www.scientific.net/nhc.32.15.

Full text

Abstract:

Lightweight panels for indoor constructions are typically made from composite materials with honeycomb and corrugated structures. The reinforcements are used in this study, one is fiberglass and the other is cellulose fiber, which cellulose from recycled paper. Experimental results indicate that the weight of honeycomb paper panel is light, only 13.6% of fiberglass composite and 32.6% of plywood. The presence of honeycomb structure has a significant effect on mechanical behaviors of composite panels. Both flexural and compressive strengths increase by replacing corrugated structure into honeycomb structure. During compression, the compressive strength and modulus of two-layer honeycomb/core panel are higher than those of monolayer honeycomb/core. Particularly, the honeycomb cell-wall thickness has a little effect on the weight, but has an important effect on mechanical properties. These results can be created low cost and lightweight environment-friendly panels by using recycled paper honeycomb structure.

APA, Harvard, Vancouver, ISO, and other styles

50

Zhu, Jun Guang, Xu Huang, and Rong Yue Zheng. "Discussion of Ceramsite Concrete Shaped Column in a Structural System." Applied Mechanics and Materials 188 (June 2012): 205–10. http://dx.doi.org/10.4028/www.scientific.net/amm.188.205.

Full text

Abstract:

Thermal insulation building materials that is both lightweight and high strength is the key to the future of China's construction sector in achieving energy conservation. In terms of building construction, when comparing lightweight aggregate concrete to that of ordinary concrete, light weight aggregate is lighter, has a large structure span, good seismic performance, saving cost and other advantages; Ceramsite concrete is a type of lightweight aggregate concrete. Also because the shaped column is not ridge, is able to increase the amount of usage area, due to being light is energy efficient, therefore is in line with the wall reformation and is thus preferred. Upon combining these two characteristics, the analysis of the Ceramsite concrete shape columns properties and its prospect for development.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Lightweight building materials'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles