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Journal articles on the topic 'Floors, Concrete Thermal properties'

Author: Grafiati

Published: 10 December 2022

Last updated: 31 July 2025

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1

Nagy, Balázs, and Dóra Szagri. "Hygrothermal Properties of Steel Fiber Reinforced Concretes." Applied Mechanics and Materials 824 (January 2016): 579–88. http://dx.doi.org/10.4028/www.scientific.net/amm.824.579.

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This paper defines the hygrothermal material properties (thermal conductivity, density, specific heat capacity, vapor diffusion coefficient and resistance, moisture storage function, water absorption coefficient and liquid transport coefficient) of steel fiber reinforced concretes that are widely used for industrial floors, based on laboratory measurements. The measured and calculated material properties are necessary to carry out a dynamic heat and moisture simulation of a component or a building containing steel fiber reinforced concrete layers.

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2

Iravani, Ahmad, Volkert Feldrappe, Andreas Ehrenberg, and Steffen Anders. "Stability of concrete containing blast-furnace slag following exposure to cyclic elevated temperature." Acta Polytechnica CTU Proceedings 33 (March 3, 2022): 238–44. http://dx.doi.org/10.14311/app.2022.33.0238.

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Concrete is widely used in constructions such as industrial floors or airducts in steel- and casting industry where it is often exposed to long-term or cyclic elevated temperatures. For these applications, thermal stability of concrete is of vital importance. The strength reduction dueto elevated temperatures depends on the temperature level and concrete composition. In this study, the effects of blast-furnace slag cement (CEM III/A) and basaltic aggregates were investigated at temperatures 250◦C to 700 ◦C in comparison to conventional Portland cement (CEM I) containing quarzitic aggregates. T

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Glinicki, Michał, Daria Jóźwiak-Niedźwiedzka, and Andrzej Brandt. "Diagnostics of premature damage to surface-hardened industrial concrete floors." Cement Wapno Beton 28, no. 6 (2024): 409–27. http://dx.doi.org/10.32047/cwb.2023.28.6.4.

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The article presents the diagnostic results on surface-hardened industrial concrete floors. Selected examples of floors showcased premature damage to surface layers, characterized by intense dusting, delamination, and local spalling, while the structural system remained unaffected. Quantitative petrographic analysis of concrete was applied to core specimens from the floors, involving the examination of digital images from a polarizing optical microscope and a scanning electron microscope. The hardening compound and powdered specimens of the cement matrix were characterized using differential t

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Sedlmajer, Martin, and Jiri Zach. "Properties of Lightweight Concretes Made of Aggregate from Recycled Glass." Solid State Phenomena 249 (April 2016): 67–72. http://dx.doi.org/10.4028/www.scientific.net/ssp.249.67.

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The paper describes the basic properties of newly developed lightweight cement concrete containing lightweight aggregate based on recycled glass. The basic properties of concrete were observed, i.e. bulk density in fresh and hardened state and compressive strength. Given the low bulk density of the concretes being designed, thermal conductivity is also observed in order to assess the options off improving thermal insulation properties in a structure where such concrete may be used. Thermal insulation properties are the primary parameter in the implementation of floor or ceiling structure compo

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Raczkiewicz, Wioletta, and Artur Wójcicki. "Implementation and usage aspects for floors in the residential houses." E3S Web of Conferences 49 (2018): 00085. http://dx.doi.org/10.1051/e3sconf/20184900085.

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Concrete floors at the building’s rooms are made of concrete, as well as fibre-reinforced concrete, or with the reinforcement meshes of various kinds. On one hand, such aspects have an influence on technical capabilities, as well as cost and labour-consumption when making the floors; on the other hand, they influence operational properties. The floors, as a result of significant dimensions, are particularly vulnerable to cracks, following the overlapping effects of shrinkage and thermal strains, as well as mechanical loads. Detailed design guidelines concerning the implementation method and th

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Wen, Bo, Haotian Tao, Benkai Shi, and Huifeng Yang. "Dynamic Properties of Timber–Concrete Composite Beams with Crossed Inclined Coach Screw Connections: Experimental and Theoretical Investigations." Buildings 13, no. 9 (2023): 2268. http://dx.doi.org/10.3390/buildings13092268.

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Due to the low density and stiffness of wood, traditional timber floor systems are prone to producing large vibration responses. By combining timber beams with concrete floors, timber–concrete composite (TCC) floor systems show stronger bearing capacity, higher bending stiffness, and better thermal and sound insulation behaviors when compared with traditional timber floor systems. In this study, the vibration performance of TCC beams with crossed inclined coach screw connectors was investigated using dynamic tests. The influence of the screw diameters and slab dimensions on the dynamic perform

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Olanrewaju Sharafadeen Babatunde Owolabi and Noor Faisal Abas. "The Impact of Density and Porosity on Thermal Properties of Kernelrazzo Concrete Floor Finish." Journal of Advanced Research in Applied Sciences and Engineering Technology 29, no. 2 (2023): 291–303. http://dx.doi.org/10.37934/araset.29.2.291303.

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Understanding the impact of density and porosity on the thermal characteristics of kernelrazzo concrete floor finish was the study's main goal. Kernelrazzo is a combination of palm kernel shell, marble chippings in place of terrazzo, quarry dust, cement, palm oil fuel ash and water. In this study, it was determined which factors normally have the biggest influence on the thermal development of kernelrazzo concrete by conducting a scan of the literature and specifications. In this study, experiments in the laboratory were carried out at USM's HBP Concrete Lab. The components were mechanically c

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Oksana, Shkromada, Paliy Andriy, Yurchenko Oksana, et al. "INFLUENCE OF FINE ADDITIVES AND SURFACTANTS ON THE STRENGTH AND PERMEABILITY DEGREE OF CONCRETE." EUREKA: Physics and Engineering 2 (March 31, 2020): 19–29. https://doi.org/10.21303/2461-4262.2020.001178.

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The results of studies to determine the effect of titanium dioxide nanoparticles (nanoTiO<sub>2</sub>), finely dispersed anatase crystalline titanium dioxide (anatazTiO<sub>2</sub>) and surface-active substances (surfactants) on the compressive strength, degree of permeability and thermal stability of concrete samples are presented. Adding particles of nanotitanium, anatase titanium and surfactants up to 2 % to cement accelerates the hydration process and increases the strength of concrete, and also has a strong effect on its microstructure. As a result of the studies, it is experimentall

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E.V., Shipacheva, Pirmatov R. Kh., and Turdalieva M.K. "Heat Engineering Heterogeneity Of The Outer Walls Of Earthquake-Resistant Buildings." American Journal of Interdisciplinary Innovations and Research 02, no. 12 (2020): 1–8. http://dx.doi.org/10.37547/tajiir/volume02issue12-01.

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When assessing the level of energy efficiency of civilian buildings, a special place is given to establishing the level of thermal protection of their external enclosing structures. Significant discrepancies in the results of theoretical and experimental studies of heat fluxes through the outer walls of buildings erected in seismic areas are associated with the design features of fences - the presence of reinforced concrete elements in them: anti-seismic belts at the level of floors, cores at intersections of walls and along the edges of large window openings ... In addition, in recent years,

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SRINIVAS, CH, YALLA KARTEEK, VEGI BHARGAV, SYED MAHABOOB BASHA, and AVAPATI DILEEPKUMAR. "Experimental Investigation on Conctrete by Adding Recron 3S Fibre." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 03 (2025): 1–9. https://doi.org/10.55041/ijsrem43186.

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This study investigates the impact of Recron 3S fiber addition on the mechanical properties of M20 grade concrete, aiming to enhance its strength, durability, and crack resistance. Recron 3S, a synthetic micro-fiber, was incorporated into concrete mixes at varying percentages (0%, 0.25%, 0.50%, 0.75%, and 1% by weight of cement), and the resulting properties were compared with conventional concrete. Fresh and hardened properties, including workability, compressive strength, split tensile strength, and flexural strength, were evaluated through laboratory testing on casted cubes and cylinders at

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Zach, Jiri, Martin Sedlmajer, Jan Bubenik, and Vitezslav Novak. "Utilization of Non-Traditional Fibers for Light Weight Concrete Production." Key Engineering Materials 760 (January 2018): 231–36. http://dx.doi.org/10.4028/www.scientific.net/kem.760.231.

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Along with energy savings for heating and cooling, the demand for thermal insulation materials is increasing and is an attempt to achieve good thermal insulation properties for some of the construction materials. In the field of porous and lightweight concrete, this is e.g. concrete for foundations, concrete for floor constructions or flat roofs. The problem with these concrete is a relatively rapid drop in mechanical properties in reducing bulk density, with using conventional silicate binders, especially in the area below 1000 kg/m3. The paper describes the possibility of using recycled orga

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Shamsa, Mohammed H., Nadia M. Al-Abdaly, Mohammed Ali Ahmed, and Ali A. Al-Rammahi. "Effect montmorillonite clay as aggregate in lightweight concrete cement-free." Periodicals of Engineering and Natural Sciences (PEN) 10, no. 2 (2022): 147–54. https://doi.org/10.21533/pen.v10.i2.589.

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Light weight concrete has many advantages that can be used in the construction of buildings. Perhaps one of the most important of these features is its light weight, which contributes a lot to reducing stress on the soil, which provides the possibility of rising buildings and increasing the number of floors. In addition to its role in thermal insulation and its impact on reducing the consumption of energy sources in cooling and heating, light weight concrete is considered one of the sustainability factors in buildings. One of the second major factors in sustainability is to reduce or avoid the

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Mussabayev, Т., S. Yessengabulov, G. Zharkenova, Y. Zharkenov, and A. Temirgaliyeva. "Thermal conductive inclusions in building envelopes." BULLETIN of the L.N. Gumilyov Eurasian National University. Technical Science and Technology Series 147, no. 2 (2024): 8–23. http://dx.doi.org/10.32523/2616-7263-2024-147-2-8-23.

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In order to reduce the heat loss of a building and meet the requirements of regulations, multi-storey building envelopes have been widely used in construction in recent years, including the placement of a thermal insulation layer inside the structure. Under the influence of economic considerations, one of the main types of building floors was a masonry cellular concrete block faced with brick with effective insulation between floors. Considering the modernization of existing types of building envelopes and the appearance of a large number of new structures, the question arose about the correct

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14

Li, Yinsheng, Liping Hu, Jinxiang Chen, and Canjun Sheng. "STRUCTURAL PARAMETERS AND COMPARATIVE ANALYSIS OF THE PERFORMANCE OF FOUR BEETLE ELYTRON PLATE WALLS." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 30, no. 5 (2024): 404–13. http://dx.doi.org/10.3846/jcem.2024.19786.

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This article presents the characteristics of four straw-filled beetle elytron plate (BEPsc) nonload-bearing walls, with their thermal and mechanical properties ascertained by the finite element method, focusing on structural parameters reported in previous studies and further optimized in this paper. The results are as follows: 1) The sequence of the four models’ mechanical and thermal insulation properties with the reported structural parameters is given. The mechanical properties are mainly affected by the core layer’s out-of-plane bending moment of inertia Ix. The insulation capability is m

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15

Jeong, Young-Sun, and Hae-Kwon Jung. "Thermal Performance Analysis of Reinforced Concrete Floor Structure with Radiant Floor Heating System in Apartment Housing." Advances in Materials Science and Engineering 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/367632.

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The use of the resilient materials in the radiant floor heating systems of reinforced concrete floor in apartment housing is closely related to the reduction of the floor impact sound and the heating energy loss. This study examined the thermal conductivity of expanded polystyrene (EPS) foam used for the resilient material in South Korea and analysed the thermal transfer of reinforced concrete floor structure according to the thermal conductivity of the resilient materials. 82 EPS specimens were used to measure the thermal conductivity. The measured apparent density of EPS resilient materials

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16

Fiala, Ctislav, Jaroslav Hejl, Vladimira Tomalova, et al. "Structural Design and Experimental Verification of Precast Columns from High Performance Concrete." Advanced Materials Research 1106 (June 2015): 110–13. http://dx.doi.org/10.4028/www.scientific.net/amr.1106.110.

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Paper presents some results of long-term research of a new optimized subtle precast construction system based on high performance silicate composites. The system is particularly aimed for building construction in passive or zero-energy standard. Subtle structural elements from high performance concrete (HPC) can be integrated into building envelope of energy efficient buildings with significant reduction of envelope structure and avoiding risk of thermal bridges. Significant advantages of subtle elements are material and energy savings during production, transport, manipulation and constructio

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17

Grynning, Steinar, Alessandro Nocente, Lars Gullbrekken, and Kjell Skjeggerud. "Thermal mass and thermal comfort in offices – experimental studies of a concrete floor." MATEC Web of Conferences 282 (2019): 02087. http://dx.doi.org/10.1051/matecconf/201928202087.

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Previous studies demonstrated that the use of thermal mass in buildings can contribute to reduce the energy demand and improve the thermal comfort. The thermal mass effect strongly depends on the properties of the materials facing the internal environment. High thermal capacity and conductivity are vital to achieve the desired effects. Concrete have both and it is a common building material. However, scientifically sound experimental studies that quantify the effects in a controlled environment are scarce. The aim is to study the effects of thermal mass on indoor environment and comfort in a q

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18

Wong, M. Bill. "Inelastic Behaviour of Concrete/Steel Composite Beam in Fire." Key Engineering Materials 340-341 (June 2007): 131–36. http://dx.doi.org/10.4028/www.scientific.net/kem.340-341.131.

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The configuration of a steel beam in a concrete/steel composite floor in fire gives rise to a non-uniform temperature profile across the depth of the cross-section. This temperature profile affects the deflection of the steel beam in two ways: thermal bowing due to non-uniform thermal strains and beam deflection due to imposed loads. The beam deflection becomes larger as the elastic properties of the steel beam deteriorate when the temperature is rising. The deflection increases rapidly when the cross-section of the steel beam starts to yield. This paper presents a method for the calculation o

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19

Al-Jadiri, Rand Salih, Manolia Abed Al-Wahab Ali, and Qais Jawad Frayyeh. "Study some Mechanical and Thermal Properties of reinforced Perlite Concrete." Key Engineering Materials 924 (June 30, 2022): 233–42. http://dx.doi.org/10.4028/p-9os233.

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Expanded perlite as an aggregate in concrete may make insulating concrete and fire-resistant suitable for roof decks and other purposes. Expanded perlite aggregate (EPA) may be used with gypsum plasters and Portland cement to protect columns, beams, and external applications. Other building uses are chimney linings, under-floor insulation, ceiling tiles, gypsum boards, and roof insulation boards. The primary goal of this research is to learn more about the effects of employing perlite aggregate (EPA) as a partial or complete substitute for sand on various characteristics of expanded perlite co

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20

Oksana, Shkromada, Paliy Andriy, Nechyporenko Oleksandr, et al. "IMPROVEMENT OF FUNCTIONAL PERFORMANCE OF CONCRETE IN LIVESTOCK BUILDINGS THROUGH THE USE OF COMPLEX ADMIXTURES." Eastern-European Journal of Enterprise Technologies 5, no. 6 (101) (2019): 14–23. https://doi.org/10.15587/1729-4061.2019.179177.

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When examining concrete in livestock buildings, signs of corrosion and destruction of concrete floors and walls were found. Experimental studies have identified main critical points that directly affected concrete continuity. Excessive moisture, use of corrosive acidic or alkaline disinfectants and presence of natural excretions of animals (urine and feces) were found in livestock buildings. To solve this problem, admixtures were proposed: yellow iron oxide pigment and liquid glass which improve strength characteristics of concrete, its heat resistance and reduce penetrability. It was proved b

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21

Usman, N., S. U. Kunya, S. A. Ishaq, S. A. Agboola, A. Bukar, and M. O. Shabi. "Fire resistance and ultrasonic testing of rice husk ash modified foamed concrete." Environmental Technology and Science Journal 15, no. 2 (2024): 156–64. https://doi.org/10.4314/etsj.v15i2.17.

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Foamed concrete (FC) is a relatively new construction material that has recently gained attention due to its unique properties, such as density and strength-to-weight ratio. This lightweight material makes it easy to form into different shapes and sizes. Its excellent thermal insulation makes it popular for building walls, roofs, and floors. This study investigates the fire resistance and ultrasonic testing of rice husk ash modified foamed concrete. The study adopted a design density of 1600 kg/m3 and a 0.5% water-cement ratio. The concrete was cured in ambient conditions at 7,14, 28, 56, and

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22

Amici, Carla Maria. "Unusual Examples of Sophisticated Iron Technology in the Heating Systems of Roman Imperial Baths." European Journal of Archaeology 18, no. 4 (2015): 658–78. http://dx.doi.org/10.1179/1461957115y.0000000002.

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In Roman imperial times, metallurgy reached a high degree of specialization and complexity. The use of iron extended even to building technology, leading to some very particular results, achieving a sophisticated mastery of the technology with a complete understanding of metal properties, in a social and economic context characterized by large financial resources and a high level of creativity applied to architectural projects. A still unpublished device was found in the construction of several floors in the Villa of Giulia, Augustus' daughter, in Ventotene (Italy). In the thermal area, the co

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de Silva, Donatella, Naveed Alam, Ali Nadjai, Emidio Nigro, and Faris Ali. "Finite Element Modelling for Structural Performance of Slim Floors in Fire and Influence of Protection Materials." Applied Sciences 11, no. 23 (2021): 11291. http://dx.doi.org/10.3390/app112311291.

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Slim floor systems are very common nowadays and various types are currently being used for the construction of high-rise buildings and car parks. Concrete in slim floor beams encases the steel beam section which helps to improve their fire resistance. Despite their higher fire resistance, several fire protection materials like intumescent coatings are often used to achieve a higher fire resistance where desired. The thermal properties and behaviour of various intumescent coating materials were previously studied through experimental investigations. This paper presents finite element analyses t

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24

Valaskova, Veronika, Jozef Vlcek, and Marian Drusa. "Experimental and computational dynamic analysis of the foam concrete as a sub-base layer of the pavement structure." MATEC Web of Conferences 211 (2018): 13002. http://dx.doi.org/10.1051/matecconf/201821113002.

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Dynamic properties of the new materials represent the actual problem, which is solved at many departments in the world at this time. Foam concrete (FC) is a material that has wide application in the civil engineering structures. Currently, it's mainly used in the floor structures of the buildings but its usability can be much wider thanks to its specific properties. The foam concrete contains closed air pores, what achieves its low volume weight (density) and saving of material inputs. It's a building material with good mechanical properties and low thermal conductivity and at the same time wi

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25

Kubenková, Kateřina, Marek Jašek, and Vladan Panovec. "Research of the Temperature Field Process in the Soil for a Home - Founded on a Foam Glass Granulate." Advanced Materials Research 1041 (October 2014): 257–60. http://dx.doi.org/10.4028/www.scientific.net/amr.1041.257.

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Foam glass granulate is environmentally friendly, heat-insulating building material which is made from recycled glass waste. It is a very porous material with low density, with good thermal insulation properties, high static load capacity and almost zero water absorption. The paper deals with the research of the temperature field process in the soil under the floor of a passive house built on a reinforced concrete slab foundation with a layer of compacted subsoil using raw materials friendly to the environment in the form of granules of foamed glass. This method of progressive foundation of th

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26

Alyousef, Rayed, Omrane Benjeddou, Chokri Soussi, Mohamed Amine Khadimallah, and Malek Jedidi. "Experimental Study of New Insulation Lightweight Concrete Block Floor Based on Perlite Aggregate, Natural Sand, and Sand Obtained from Marble Waste." Advances in Materials Science and Engineering 2019 (March 3, 2019): 1–14. http://dx.doi.org/10.1155/2019/8160461.

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The purpose of the present study is to recover marble waste and expanded perlite aggregate (EPA) for use as an additive to cementitious matrix building materials. The main goal is to produce a new insulation block floor from lightweight concrete (LC) by mixing sand from the waste marble crushing process (SWM), natural sand, and EPA. First, optimal mixture of natural sand, SWM, and EPA was determined for a given insulation LC. To this end, plate and cubic specimens were prepared by varying the volume proportion of SWM to natural sand in percentages of 0, 20, 40, 60, 80, and 100. Mechanical and

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27

Huang, Zhenyu, Fang Wang, Yingwu Zhou, Lili Sui, Padmaja Krishnan, and Jat-Yuen Richard Liew. "A Novel, Multifunctional, Floatable, Lightweight Cement Composite: Development and Properties." Materials 11, no. 10 (2018): 2043. http://dx.doi.org/10.3390/ma11102043.

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This paper presents the development of a novel, multifunctional, floatable, lightweight cement composite (FLCC) using three different types of glass microspheres for structural engineering applications. Eight different mixtures of FLCC were produced and their matrix-related parameters were examined experimentally by adopting different types of microsphere fillers, fiber content (polyethylene fibers (PE)), and water-to-binder ratios. Along with the mechanical properties such as compressive, flexural, tensile strengths, and modulus of elasticity, the water tightness of the material was evaluated

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28

Keprdová, Šárka, and Jiří Bydžovský. "Possibility of Using the Technical Hemp as a Filling Component in External Thermal-Insulation Composite Systems." Advanced Materials Research 587 (November 2012): 47–51. http://dx.doi.org/10.4028/www.scientific.net/amr.587.47.

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Combining air or hydraulic binders with hemp shives, we can gain a set of new building materials. These products achieve excellent performance characteristics for durable, environmentally sustainable buildings. Being together, these products create natural composite building material that can be used to create insulating elements for walls, floors and roofs and also to create excellent thermal and acoustic properties of the buildings. Hemp insulation material is created by connection of technical hemp shives with a binder consisting of cement and calcium hydroxide. The production process may v

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29

Szymczak-Graczyk, Anna. "Numerical Analysis of the Impact of Thermal Spray Insulation Solutions on Floor Loading." Applied Sciences 10, no. 3 (2020): 1016. http://dx.doi.org/10.3390/app10031016.

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The paper presents the effect of considering the substrate under the floor—insulation in the form of closed-cell polyurethane spray foam, which is used for insulating surfaces particularly exposed to mechanical impact. The layer of thermal insulation was made by spraying, which prevents the occurrence of thermal bridges due to tight filling of the insulated space. It seems extremely important to adopt the appropriate material characteristics of an insulating layer. The basic thermophysical properties of polyurethane foam justifying its choice as an insulation material were the values of its th

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Gorantla, Kiran Kumar, Saboor Shaik, and Ashok Babu Talanki Puttaranga Settee. "Simulation of Various Wall and Window Glass Material for Energy Efficient Building Design." Key Engineering Materials 692 (May 2016): 9–16. http://dx.doi.org/10.4028/www.scientific.net/kem.692.9.

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Buildings consume huge amount of energy for forced ventilation and artificial day lighting. Use of appropriate material combinations for walls and window glass can help in reducing energy consumption for cooling and lighting. This paper presents the thermal properties of four building materials such as, laterite stone, dense concrete, burnt brick and mud brick. It also presents the experimentally measured optical properties of glass materials such as, clear glass, bronze glass, green glass and reflective. In this study building of size 5m X 5m X 3.2m with four wall materials and four glass mat

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Tamrazyan, Ashot, Oleg Kabantsev, Tatiana Matseevich, and Vladimir Chernik. "Estimation of the Reduction Coefficient When Calculating the Seismic Resistance of a Reinforced Concrete Frame Building after a Fire." Buildings 14, no. 8 (2024): 2421. http://dx.doi.org/10.3390/buildings14082421.

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The consequences of destructive earthquakes show that the problem of analyzing the response of reinforced concrete frames under seismic loads after a fire is relevant. The calculation models used for individual elements and buildings as a whole must take into account the nonlinear properties of concrete and reinforcement. In the spectral calculation method, the nonlinear properties of materials are taken into account by introducing a reduction coefficient to the elastic spectrum. When determining the reduction coefficient, a common deformation criterion is based on the use of the plasticity co

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32

Taranenkova, V. V., and P. Y. Korekian. "Influence of inorganic additives on the water resistance of a magnesium binder." Voprosy Khimii i Khimicheskoi Tekhnologii, no. 1 (February 2025): 39–44. https://doi.org/10.32434/0321-4095-2025-158-1-39-44.

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Magnesium-based binders are widely used worldwide. Magnesia cements are employed in the production of xylolite, fibrolite, various structural elements, artificial marble, bases for finished floors, plasters, heat-insulating foamed and gas concretes, refractory ramming masses, grindstones, and more. They are characterized by several advantageous properties, including high mechanical strength at the initial stages of hardening; increased flexural strength compared to other types of binders; a compact structure of the hardened cement combined with low true density; low thermal conductivity; high

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Dovzhenko, O. A., V. V. Pohribnyi, and L. V. Karabash. "EFFECTIVE KEYED CONNECTIONS OF HOLLOW-CORE FLOOR SLABS WITH WALLS IN MODERN LARGE-PANEL HOUSE BUILDING." Science & Technique 17, no. 2 (2018): 146–56. http://dx.doi.org/10.21122/2227-1031-2018-17-2-146-156.

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The paper considers large-panel constructive system of multi-storey buildings and its industrial basis creates conditions for intensive volume growth in house construction. Application of hollow-core panels are recommended as floor slabs that allows to increase a distance between bearing walls, to improve planning solutions, and also significantly to increase thermal and sound protection properties of floor discs (coatings). Keyed joints having the highest resistance to shearing forces are used to ensure joint action of the slabs with wall panels. A supporting unit of floor elements in the pre

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Fontanini, Patricia Stella Pucharelli, Rosa Cristina Cecche Lintz, Luisa Andréia Gachet-Barbosa, Ana Elisabete P. G. A. Jacintho, and Lia Lorena Pimentel. "An Alternative to Paver in Living Areas of Social Interest Housing (SIH)." Advanced Materials Research 694-697 (May 2013): 2942–48. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.2942.

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The waste rubber from tire have been employed as aggregate in concrete due to their distinct characteristics, such as: less density, drainage properties improve thermal and acoustic isolation in construction, beyond final cost production reduced. This way, the substitution of part of natural aggregate by tire rubber, contributes to the natural aggregates preservation and offer an alternative for recycling this kind of waste. In view of these advantages, this study proposes the utilization of tire waste in projects of Social Interest Housing. The project has as mailing objective the constructio

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Fiala, Ctislav, Jaroslav Hejl, Vlastimil Bílek, et al. "Experimental Verification of Subtle Frame Components Prototypes from High Performance Concrete for Energy Efficient Buildings." Solid State Phenomena 249 (April 2016): 301–6. http://dx.doi.org/10.4028/www.scientific.net/ssp.249.301.

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Mechanical properties of high performance concrete (HPC) enable design of subtle structural elements. Subtle HPC frame concept comes from the effort to integrate load bearing elements into building envelope in order to reduce risks of thermal bridges. Substantial advantages of subtle structural elements are material and energy savings during production, transportation, manipulation and assembling. Paper presents preparation and implementation of construction of experimental frame at University Centre UCEEB in Buštěhrad. Individual structural elements were made in prefa plant ŽPSV a.s. in Li

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Юсупова, А. А., Г. А. Медведева, А. И. Фахрутдинова, З. Б. Асеева та Л. Р. Бараева. "Использование карбонатсодержащих отложений теплообменных аппаратов в технологии получения серных материалов". Цемент и его применение, № 1-2025 (7 квітня 2025): 50–53. https://doi.org/10.61907/cia.2025.87.93.001.

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Одна из проблем для предприятий тепловой энергетики — отложение накипи на поверхностях теплообменного оборудования. В данной статье рассмотрено использование карбонатсодержащих отложений теплообменных аппаратов (КСОТА) в серных композиционных материалах (СКМ). Определены оптимальные составы предлагаемого СКМ. Изучены физико-механические свойства СКМ из отходов теплоэнергетики и разработаны рекомендации по его применению. Разработана технология СКМ на основе КСОТА. Высокие показатели физико-механических свойств СКМ связаны с образованием сульфидных и полисульфидных соединений в системах S + AlC

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Mohammad, Mastali, Kinnunen Paivo, Karhu Marjaana, et al. "Impacts of Casting Scales and Harsh Conditions on the Thermal, Acoustic, and Mechanical Properties of Indoor Acoustic Panels Made with Fiber-Reinforced Alkali-Activated Slag Foam Concretes." Materials 12, no. 5 (2019): 825. http://dx.doi.org/10.3390/ma12050825.

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This paper presents experimental results regarding the efficiency of using acoustic panels made with fiber-reinforced alkali-activated slag foam concrete containing lightweight recycled aggregates produced by using Petrit-T (tunnel kiln slag). In the first stage, 72 acoustic panels with dimension 500 × 500 × 35 mm were cast and prepared. The mechanical properties of the panels were then assessed in terms of their compressive and flexural strengths. Moreover, the durability properties of acoustic panels were studied using harsh conditions (freeze/thaw and carbonation tests). The efficiency of t

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HLADYSHEV, Hennadii, and Dmytro HLADYSHEV. "DETERMINATION OF THE ZONE OF THERMAL INFLUENCE OF FIRE BY RESULTS INSPECTION OF FLOOR STRUCTURES." Building constructions. Theory and Practice, no. 10 (June 27, 2022): 32–41. http://dx.doi.org/10.32347/2522-4182.10.2022.32-41.

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The results of the study of the technical condition of 14 round-hollow slabs according to the series II-03-02 within the basement of two entrances of a residential building after a fire, lasting about 8 hours. More than 40 years passed from the commissioning of the building to the fire, and all this time the basement slabs were in a non-aggressive environment, but with high relative humidity, which had a positive effect on increasing the concrete strength of typical slabs. Inspection of slabs in adjacent rooms for a long time of operation did not reveal significant defects from their humidific

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Volk, R., J. J. Steins, P. Stemmermann, and F. Schultmann. "Comparison of different post-demolition autoclaved aerated concrete (AAC) recycling options." IOP Conference Series: Earth and Environmental Science 1078, no. 1 (2022): 012074. http://dx.doi.org/10.1088/1755-1315/1078/1/012074.

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Abstract Autoclaved aerated concrete (AAC) is used as masonry blocks and prefabricated reinforced elements preferably in residential buildings. Due to its porous structure and mineral composition, it combines low thermal conductivity and fire resistance properties. Consequently, the popularity of AAC increases. However, due to significant AAC production volumes in many European countries since the 1960s and 1970s and given building lifetimes, strongly increasing post-demolition AAC waste volumes can be expected in the following decades. Recycling these post-demolition AAC wastes could protect

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Baglivo, Cristina, Paolo Congedo, and Delia D’Agostino. "Multi-Objective Analysis for the Optimization of a High Performance Slab-on- Ground Floor in a Warm Climate." Energies 11, no. 11 (2018): 2988. http://dx.doi.org/10.3390/en11112988.

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The building sector is responsible for a large part of the overall energy demand in Europe. Energy consumption may be reduced at the design stage by selecting the proper building elements. This study develops a multi-objective analysis for a highly efficient slab-on-ground floor, whose design is optimized for a warm climate. Possible floor configurations have been obtained using the software tools modeFRONTIER, for the multi-objective analysis, and MATLAB, for the computational code. To proceed with the optimization of the different floor layers, a dataset has been developed for several materi

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Maiboroda, Roman, and Yurii Otrosh. "Software implementation of assessment of buildings' resistance to progressive collapse." Problems of Emergency Situations, no. 41 (May 27, 2025): 177–93. https://doi.org/10.52363/2524-0226-2025-41-12.

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A computer model has been developed that allows assessing the resistance of a reinforced concrete monolithic building to progressive collapse under the influence of the combined action of fire and internal deflagration explosion. For this purpose, a spatial physically and geometrically nonlinear model of a six-story industrial building was created. The model takes into account the combined operation of load-bearing structures, changes in the thermophysical and mechanical properties of materials under the influence of elevated temperatures, the formation of local destruction, redistribution of

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Maraveas, Chrysanthos. "Fire resistance of DELTABEAM® composite beams: a numerical investigation." Journal of Structural Fire Engineering 8, no. 4 (2017): 338–53. http://dx.doi.org/10.1108/jsfe-05-2016-0003.

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Purpose The DELTA® beam composite floor system is a recently developed shallow floor type that has seen many applications in contemporary construction. It involves partially encasing DELTA® steel beams in concrete, with the lower flange remaining exposed. Besides the satisfactory behavior of the system at ambient conditions, understanding its response under elevated temperatures is critical in evaluating its overall performance. Despite certification from the manufacturing company that the system has adequate fire resistance, its behavior under fire conditions has neither been investigated to

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Hossain, K. M. A., and M. Lachemi. "Thermal Conductivity and Acoustic Performance of Volcanic Pumice Based Composites." Materials Science Forum 480-481 (March 2005): 611–16. http://dx.doi.org/10.4028/www.scientific.net/msf.480-481.611.

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Volcanic Pumice (VP) is found abundantly in various parts of the world. In this study, VP from East New Britain province of Papua New Guinea is investigated and assessed for its industrial utilization. The manufacturing of heat-insulating lightweight concrete, building blocks or composites using VP is of prime importance as an energy saver. The utilization of VP as a heatinsulating material is tested and the results are found to satisfy the ASTM requirements. This fact suggests that VP could be utilized in the manufacture of composite building blocks or concrete. Acoustic performance of compos

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Huang, Zhu Ye, Qian Wu, and Min Gui Wu. "Thermal Isolation Character of Reinforced Concrete Hollow Floor." Applied Mechanics and Materials 638-640 (September 2014): 300–303. http://dx.doi.org/10.4028/www.scientific.net/amm.638-640.300.

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Reinforced Concrete Hollow floor system was named by its typical inner core and worked as an excellent horizontal bearing structure. It has fine mechanical ability and good thermal isolation character. The author compared reinforced concrete hollow floors and traditional reinforced concrete floor. And studied their development in long span or large loaded building.

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Wang, Yudi, and Guoqiang Xu. "Numerical Simulation of Thermal Storage Performance of Different Concrete Floors." Sustainability 14, no. 19 (2022): 12833. http://dx.doi.org/10.3390/su141912833.

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To improve the utilization rate of energy, the consumption of fossil energy must be reduced. In this study, a low-temperature radiant floor made of concrete is taken as the research object, and a two-dimensional low-temperature hot water radiant heating system with different concrete filling layers is numerically simulated using a computational fluid dynamics (CFD) software and finite element method. In this numerical model, a concrete sensible heat storage (SHTES) is adopted, while various types of concrete materials have been used to preliminarily analyze the influence of different concrete

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Kornilov, Terentii, Petr Fedotov, and Aleksandr Nikiforov. "Evaluation of the effectiveness of additional thermal insulation of the basement floor of frame-monolithic buildings in extreme operating conditions." E3S Web of Conferences 263 (2021): 04041. http://dx.doi.org/10.1051/e3sconf/202126304041.

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The issues of saving energy resources are of particular relevance for the regions of Russia with an extremely cold climate. The increased air pressure difference in winter and the presence of volumetric cold bridges in the form of pile and column grillages, basement slabs and concrete block masonry often leads to a violation of the temperature regime of the first floors of multi-storey buildings with a monolithic reinforced concrete frame. Thermal analysis of fragments of basement floors in areas with columns and grillages with additional thermal insulation from the outside was carried out. Th

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Wegener, Konrad, and Atsushi Matsubara. "Special Issue on Advanced Material Driven Design of Machine Tools." International Journal of Automation Technology 14, no. 2 (2020): 261–63. http://dx.doi.org/10.20965/ijat.2020.p0261.

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The design of machine tools strongly depends on the materials chosen. Increasing requirements on machine tools require the joint optimization of material and design and thus also drive the development of new materials in this field. Digital technologies finally creating a digital shadow of the machine in development also enable the required co-development taking into consideration dynamic, thermal and long term influences and behavior, enabling state and health monitoring to increase the performance of the machine tool to the maximum possible. The choice of material for the different component

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Bedi, Raman, Rakesh Chandra, and S. P. Singh. "Mechanical Properties of Polymer Concrete." Journal of Composites 2013 (December 29, 2013): 1–12. http://dx.doi.org/10.1155/2013/948745.

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Polymer concrete was introduced in the late 1950s and became well known in the 1970s for its use in repair, thin overlays and floors, and precast components. Because of its properties like high compressive strength, fast curing, high specific strength, and resistance to chemical attacks polymer concrete has found application in very specialized domains. Simultaneously these materials have been used in machine construction also where the vibration damping property of polymer concrete has been exploited. This review deals with the efforts of various researchers in selection of ingredients, proce

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Tůmová, Eva, Lenka Mészárosová, and Rostislav Drochytka. "The Effect of Additives on the Properties of Lightweight Concrete Screed." Advanced Materials Research 1100 (April 2015): 170–73. http://dx.doi.org/10.4028/www.scientific.net/amr.1100.170.

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This contribution deals with the effect of additives on the properties of concrete screed. The main field, where are the additives studied in this entry, is the field of lightweight concrete screeds for industrial floors.

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Žiogas, Vigantas, and Svajūnas Juočiūnas. "DESIGN AND INSTALLATION PECULIARITIES OF MONOLITHIC CONCRETE FLOOR." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 11, no. 2 (2005): 153–62. http://dx.doi.org/10.3846/13923730.2005.9636345.

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Monolithic concrete floors are frequently designed as plain concrete slabs. The purpose of the plain concrete floor is to transmit loading from its source to the subgrade with minimal distress. The magnitude of these stresses depends on factors such as the subgrade strength, solution of construction, the quality of construction, the magnitude and character of loads. Here is presented the joint spacing for various construction solutions of concrete floor. In practice, joint spacing should be corrected by evaluating rheological properties of concrete mix, type of aggregate, its volumetric concen

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