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Journal articles on the topic 'Crushed Concrete'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 June 2025

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1

Beppaev, Zamir U., Lydia H. Astvatsaturova, Sergei A. Kolodyazhny, Sergey A. Vernigora, and Vladislav V. Lopatinsky. "Durability characteristics of concrete and reinforced concrete with recycling (concrete) rubble." Concrete and Reinforced Concrete 625, no. 6 (2024): 27–39. https://doi.org/10.37538/0005-9889-2024-6(625)-27-39.

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Introduction. One of the most important reserves for saving material and energy resources in the construction industry is the re-involvement of recycled (concrete) crushed stone in the production sector, in particular for the production of heavy concrete of classes B7,5–B35 for general construction purposes. Solving this problem will practically ensure the implementation of the most important principle of waste-free technological processes (in the production of precast and monolithic concrete and reinforced concrete structures) and create conditions for fulfilling important social, economic an

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2

Ghazi, Osama M. "PROPERTIES OF HARDENED CONCRETE USING CRUSHED CLAY BRICK AS AGGREGATES." Journal of Engineering 17, no. 04 (2011): 1022–38. http://dx.doi.org/10.31026/j.eng.2011.04.27.

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This paper provides the result of an investigation to use of crushed clay brick asaggregates in producing concrete. Eight different crushed clay brick aggregate concretes wereused in this investigation. Compressive strength, splitting tensile strength and pulse velocity ofcrushed clay brick aggregates concrete were determined and compare to natural aggregateconcrete. The compressive strength of crushed clay brick aggregates concretes were alwayslower than the compressive strength of natural aggregates concrete regardless the age ofconcrete, but the crushed clay brick aggregates concrete showed

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3

Feng, Xiao Xin, Xue Li Xi, Ji Wei Cai, Hong Jun Chai, and Yu Zeng Song. "Investigation of Drying Shrinkage of Concrete Prepared with Iron Mine Tailings." Key Engineering Materials 477 (April 2011): 37–41. http://dx.doi.org/10.4028/www.scientific.net/kem.477.37.

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Concretes of C30 and C60 were prepared with iron mine tailings as fine aggregate and coarse aggregate and with natural sand and common crushed stone separately. The drying shrinkage of concretes cured under the natural condition in the laboratory was tested. The results showed that whether C30 or C60 the drying shrinkage of concrete prepared with iron mine tailings was a little smaller than that of concrete with natural sand and common crushed stone. It was also found that whether the concrete with iron mine tailings or the concrete with natural sand and common crushed stone the drying shrinka

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4

Nur Anggraini, Reni, Fadrizal Lubis, and Widya Apriani. "Analisis Perbandingan Kuat Tekan Beton Terhadap Penggunaan Pasir Alam Dan Pasir Pecah." Journal of Infrastructure and Civil Engineering 2, no. 01 (2022): 81–86. http://dx.doi.org/10.35583/jice.v2i01.18.

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The development of the construction industry in Indonesia is quite rapid, where almost all construction buildings use concrete as the main material. For certain areas or even at certain times where the natural conditions are not good (flood), it will be difficult to get sand. In this case, other alternatives are needed, not only from nature, for example from a stone crusher factory. In the Riau area there is a stone crusher factory, namely PT. Riau Mas Bersaudara where one of the products is crushed sand. The purpose of this study was to determine the ratio of the compressive strength of concr

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5

Quvalov, Abbas. "STUDY OF CRUSH FROM CRUSHING DIFFERENT BRANDS OF CRUSHED CONCRETE." Scientific works/Elmi eserler 2 (April 2, 1996): 69–77. http://dx.doi.org/10.58225/sw.2022.2.69-77.

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Abstract. The results of the study of the grain-size composition and the grade of crushability of recycled crushed stone and their dependence on the strength of the original recycled concrete are presented. It is found that recycled crushed stone obtained from the original concrete of classes B20, B25, B30, B40 does not meet the requirements of GOST 8267-93 for total residues on Ø25, Ø20, Ø5 and Ø2.5 sieves. Regardless of the strength of the original concrete, the main fraction of recycled crushed stone is grains with sizes from 12.5 to 20 mm. The strength (grade in terms of crushability) of t

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6

Kroviakov, S. O., A. O. Chystiakov, А. О. Bershadskyi, and T. Shevchenko. "CONCRETES ON SECONDARY CRUSHED STONE AS A PROMISING MATERIAL FOR THE RIGID PAVEMENT BASE." Bulletin of Odessa State Academy of Civil Engineering and Architecture, no. 87 (June 3, 2022): 85–91. http://dx.doi.org/10.31650/2415-377x-2022-87-85-91.

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In the course of research, the efficiency of application of plasticizers of different type in concretes for bases of highways on secondary crushed stone is defined. In studies of concrete compositions, the type of crushed stone, secondary or granite, changed, which allowed to compare the properties of concrete on secondary crushed stone with the properties of concrete of similar composition on granite crushed stone. In addition, the type of sand changed: Bilyaevsky or Voznesenski quarry. As modifiers used additive lignosulfonate or superplasticizer polycarboxylate type MC-PowerFlow 3200. All c

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7

Hubert, Julien, Zengfeng Zhao, Frédéric Michel, and Luc Courard. "Effect of Crushing Method on the Properties of Produced Recycled Concrete Aggregates." Buildings 13, no. 9 (2023): 2217. http://dx.doi.org/10.3390/buildings13092217.

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Construction and Demolition Waste (C&DW) is generated around the world and its quantity will increase in the future. Recycling has become the favored method of dealing with concrete waste but, to avoid its downcycling, it is important to develop a recycling process which is able to produce high-grade recycled concrete aggregates (RCA). To that end, studying the influence of the production process on the properties of RCA can prove to be a crucial step toward a more circular construction industry. In this study, the influence of the crushing method is investigated. Samples of five laborator

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8

Fachratov, Myhammet. "Crushed concrete as concrete aggregate in the manufacture of reinforced concrete structures." MATEC Web of Conferences 193 (2018): 02005. http://dx.doi.org/10.1051/matecconf/201819302005.

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The methods of waste recycled usage, especially, usage of secondary crushed stone made of crushed concrete scrap are becoming ever more relevant with every passing year. Imported concrete aggregate volumes can be reduced by 15-30% due to usage of secondary crushed stone. Consideration of industrial waste problem and methods of solving this problem by using waste in construction industry including secondary crushed stone made of crushed concrete scrap. Annually, about 11.5 million tons of construction waste is generated in Moscow, in the near future concrete scrap volumes are expected to rise t

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9

AL-KHAWAF, A. F. Q., and A. I. NIKULIN. "Analysis of Deformative-Strength Characteristics of Concretes, Manufactured with Addition of Coarse Aggregate, Obtained from Concrete Rubbles." Stroitel'nye Materialy 785, no. 10 (2020): 22–30. http://dx.doi.org/10.31659/0585-430x-2020-785-10-22-30.

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In the construction practice, various concretes are used which, depending on the purpose, meet different requirements in terms of reliability, resistance to external environmental factors and other equally important parameters. In this article, as a coarse aggregate, crushed stone obtained in the process of crushing concrete waste from fragments of destroyed buildings and structures is considered. The results of experimental studies by various scientists have shown that the use of concrete rubble as aggregate is a promising direction. Thus, the economic effect of the use of crushed concrete as

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10

Chen, You Zhi, Fang Xian Li, and Bing Bo Xu. "Use of Clayish Crushed Stone for Production of Aerated Concrete." Key Engineering Materials 302-303 (January 2006): 269–74. http://dx.doi.org/10.4028/www.scientific.net/kem.302-303.269.

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Aerated concrete is a new type of building materials. Clayish crushed stones are regarded as solid waste disposals in China. This paper reports the research outcomes of an experimental study on using clayish crushed stone for the production of aerated concretes of B05 and B06 grade. Hydro-thermal synthesis reaction, mixing proportions, gas-forming and their influences on the concrete performance are investigated. Proper mixing proportions and some important technical parameters are proposed for material design. The microstructure of aerated concrete made with clayish crush stone is analyzed by

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11

Tytov, Oleksandr, Kateryna Babii, and Vitaliі Sukharіev. "Technique for calculation of parameters of the wave profiled roll crusher for obtaining the cubic shaped products." Geo-Technical mechanics, no. 163 (2022): 183–92. http://dx.doi.org/10.15407/geotm2022.163.183.

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The purpose of this work is to develop a technique for calculating the crusher with wave profiled rolls based on analytical and experimental data on hard rocks processing in crushers of this type. Information on the expediency of using cubic-shaped products as fillers for concrete is given. Attention is focused on the advantages of this approach. The main types of equipment capable of producing the stone products with minimum content of lamellar pieces are analyzed. The choice of crushers with wave profile of rolls for processing of narrow-sized crushed stone fractions as combination of high e

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Baloch, Fateh Ali, Muhammad Hassan Agheem, Akhtar Hussain Markhand, Kashif Ahmed Memon, Rafiq Ahmed Lashari, and Ghulam Mustafa Thebo. "PETROGRAPHIC INVESTIGATION OF LIMESTONE OF THE LAKI FORMATION USED IN CONSTRUCTION SECTOR FROM JAMSHORO AND THATTA DISTRICTS, SINDH, PAKISTAN." Journal of Mountain Area Research 8 (November 11, 2023): 123. http://dx.doi.org/10.53874/jmar.v8i0.181.

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Limestone belonging to the Laki Formation is well exposed at Nooriabad, Jhampir, and Makli Hills. Representative samples of the Laki Formation limestone were collected from different locations such as Jamshoro, Bolhari, Makli Hills, and Nooriabad. The four crush plants i.e. Afridi Crush Plant and New Hazara Crush Plant (Makli, Thatta District), Shah Rahim Crush Plant and Bhatti Crush Plant (Nooriabad, Jamshoro District) were selected for sampling. The Petrographic investigation as per ASTM- C295-03 (1) was performed using standard thin sections. The megascopic and microscopic study results ref

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13

Kroviakov, S. O., and A. O. Chystiakov. "STRENGTH OF CONCRETE FOR BASES OF ROAD CLOTHES ON DIFFERENT TYPES OF SECONDARY GRAVEL AND SAND." Modern construction and architecture, no. 5 (September 15, 2023): 79–89. http://dx.doi.org/10.31650/2786-6696-2023-5-79-89.

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The task of developing of concrete for the bases of road clothing using secondary concrete aggregates is relevant for an economic and ecological reasons. The properties of concrete were compared with different types of coarse aggregate of 8-16 mm fraction: granite river gravel, secondary crushed stone from recycled reinforced concrete structures, secondary crushed stone from recycled brickwork and ceramic tiles. Three types of sand with a fraction of 0-4 mm were also used: quartz, secondary sand from recycled reinforced concrete structures, secondary sand from recycled brickwork. 2 series of e

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14

Turuallo, Gidion, Harun Mallisa, and Nicodemus Rupang. "Sustainable development: Using stone dust to replace a part of sand in concrete mixture." MATEC Web of Conferences 331 (2020): 05001. http://dx.doi.org/10.1051/matecconf/202033105001.

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Stone dust is a waste material produced in stone crusher industry. Stone dust produced from the crushed stone industry is quite numerous. PT Mega Beton Jaya is a stone crushed industry, which is located in Buluri, Palu, has difficulty in providing a location to accommodate the waste of stone dust. In addition, the community around this industry is quite worried with the waste ash as the air around the industry contaminated with the stone ash. This study aims to find out the maximum percentage of stone dust to substitute sand in a concrete mix to obtain the maximum strength and good workability

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15

Beppaev, Zamir U., Lydia H. Astvatsaturova, Sergei A. Kolodyazhny, Sergey A. Vernigora, and Vladislav V. Lopatinsky. "Selection of compositions and investigation of properties of finegrained self-compacting concretes based on secondary (recycling) crushed stone and sand." Concrete and Reinforced Concrete 624, no. 5 (2024): 33–44. https://doi.org/10.37538/0005-9889-2024-6(625)-33-44.

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Introduction. The replacement of traditional (natural) aggregates with industrial waste in the production of concrete is one of the most important reserves for saving material and energy resources in the construction industry of the Russian Federation. Scrap of concrete, reinforced concrete structures and products, which is formed during the demolition of physically and morally outdated buildings and structures, as well as during their destruction after natural disasters and armed conflicts, is one of the most promising wastes from the point of view of recycling in concrete technology. The use

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16

IJRAME, Journal. "ENHANCE ROAD PAVEMENTS USING STEEL FIBERWITH RECYCLED OLD CRUSHED CONCRETE." International Journal of Research in Aeronautical and Mechanical Engineering 12, no. 8 (2024): 01–16. https://doi.org/10.5281/zenodo.13305542.

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Engineers frequently aim to enhance the road's surface and texture in response to stress-induced reflection and deformation by reinforcing the underlying concrete structure of the pavement. Studies have shown that the utilization of crushed concrete and steel fiber reinforced concrete (SFRC) can enhance the performance and cost-efficiency of concrete. This study investigated the advancement of a durable concrete road surface capable of withstanding heavy vehicular loads. The experimental laboratory program consisted of four groups: standard concrete, concrete with crushed concrete, steel fiber

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17

Krawczyk, Bartłomiej, Antoni Szydło, Piotr Mackiewicz, and Dariusz Dobrucki. "Suitability of aggregate recycled from concrete pavements for layers made of unbound and cement bound mixtures." Roads and Bridges - Drogi i Mosty 17, no. 1 (2024): 39–53. http://dx.doi.org/10.7409/rabdim.018.003.

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The paper presents research on the possibility of utilizing materials recycled from concrete pavements through crushing them in crushers and re-incorporating into pavement courses. From the economic and technical points of view crushed concrete waste can be an alternative source of aggregates, replacing natural aggregates. Crushed concrete was tested with regard to the current requirements which aggregates applied in layers made of unbound and cement bound mixtures must meet. Concrete rubble is shown to be suitable a material for re-incorporation into pavement road surface courses and limitati

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18

Vaishali, Sunil Limaye Harshvardhan Rajendra Godbole Sanjay Vasudeo Lipare. "ECONOMIC FEASIBILITY OF CRUSHED GRANITE & MARBLE FOR PARTIAL REPLACEMENT OF NATURAL SAND IN M 30 GRADE CONCRETE." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 7 (2017): 334–39. https://doi.org/10.5281/zenodo.827516.

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Granite and Marble stones are used in Civil industries for various aspects. Lot of cutting waste is produced during the processing of granite and marble. This cutting waste is generally used for filling the land. An experimental research is carried out to explore the opportunity of using the crushed granite fines and marble fines as a partial substitute of sand in M 30 grade concrete. The cutting wastes with different combinations are fed to crusher. The proportion of Crushed Granite Fines (CGF) and Crushed Marble Fine (CMF) to replace sand 10%, 20%, 30%, 40% and 10%, 15%, 20%, 30% by weight.

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19

Muktan, P., K. P. Parajuli, and B. R. Gyawali. "Effect of Partial Replacement of Natural Fine Aggregate with Crushed Stone Dust: A Case Study of Makawanpur District." Journal of Lumbini Engineering College 6, no. 1 (2024): 60–77. http://dx.doi.org/10.3126/lecj.v6i1.66284.

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Stone dust is a waste material produced in stone crusher industry. Stone dust produced from the crushed stone industry is quite numerous. Nowadays in Makawanpur district of Nepal, the availability of high-quality natural fine aggregate has become increasingly limited and expensive due to factors such as restricted river access, illegal dredging, and the rapid surge in construction activities. This situation necessitates the exploration of alternative materials for construction purposes. Crushed stone dust emerges as a compelling substitute, offering an effective solution to partially replace n

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20

Strzałkowski, Jarosław, and Halina Garbalińska. "The Effect of Aggregate Shape on the Properties of Concretes with Silica Fume." Materials 13, no. 12 (2020): 2780. http://dx.doi.org/10.3390/ma13122780.

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The paper examines the impact of aggregate shape on the compressive strength and thermal properties of concretes with silica fume based on two different aggregates: natural round gravel aggregate and crushed basalt aggregate. Compressive strength and thermal properties of individual concretes were determined during the first year of specimens curing. Additionally, porosity tests were conducted using mercury intrusion porosimetry and optical porosimetry. Mercury porosimetry tests showed that the use of silica fume led to a decrease in the content of pores of size smaller than 0.15 µm compared t

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21

Žiogas, Vigantas Antanas, Svajūnas Juočiūnas, and Giedrius Žiogas. "HYDROTECHNICAL CONCRETE WITH LOCAL AGGREGATES AND THEM USING FOR MONOLITHIC STRUCTURES." Engineering Structures and Technologies 1, no. 2 (2009): 102–10. http://dx.doi.org/10.3846/skt.2009.13.

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The article discusses the technological peculiarities of construction monolithic hydrotechnical concrete structures, use of local aggregates for producing special concretes, methods of determining water impermeability of concretes as well as the evaluation of the methods mentioned above. The article presents the requirements for the granulometric composition of aggregate mixes for the production of flowing concrete mixes used for the construction of monolithic hydrotechnical structures. The possibilities and expediency of using local crushed gravel with increased amounts of weak particles for

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Matsuka, Takeju, Mariko Suzuki, Haruhiko Matsushita, Hiroshi Yokota, and Koji Sakai. "Properties of concrete using crushed stone powder with various specific surface areas." Acta Polytechnica CTU Proceedings 33 (March 3, 2022): 363–69. http://dx.doi.org/10.14311/app.2022.33.0363.

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Many countries use crushed stone and crushed sand as the aggregate for concrete. However, a large amount of crushed stone powder is produced as by-products in the manufacturing process. Unless effective utilization of crushed stone powder is considered, it is not a sufficient measure in terms of sustainability. In this study, the properties of concrete using crushed stone powders with different specific surface areas are investigated. As the results, a strong correlation was found between the unit water content of concrete and the total surface area of the crushed stone powder contained in the

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23

Rutkowska, Gabriela, Rafał Lipiński, and Piotr Wichowski. "Wpływ rozdrobnionych odpadów szklanych na wybrane właściwości betonów sporządzonych z ich udziałem." Przegląd Naukowy Inżynieria i Kształtowanie Środowiska 27, no. 4 (2019): 463–75. http://dx.doi.org/10.22630/pniks.2018.27.4.44.

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The aim of the performed investigations was to learn about an influence of addition of crushed glass waste on some selected technical properties of concrete. The glass powder or crushed glass was added during making of a concrete mix. In the studied range, the glass powder had a slight influence on the deterioration of compressive strength, whereas cullet had no effect on the compressive strength after 56 days of maturation. The addition of glass powder increases the bending strength, the addition of cullet maintains comparable bending strength in comparison to the reference concrete. The conc

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Kroviakov, S. O., and A. O. Chystiakov. "PROPERTIES OF CONCRETE AND FIBER-REINFORCED CONCRETE FOR BASES OF ROAD CLOTHES BASED ON SECONDARY AGGREGATES WITH HETEROGENEOUS COMPOSITION." Modern construction and architecture, no. 7 (March 6, 2024): 99–108. http://dx.doi.org/10.31650/2786-6696-2024-7-99-108.

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The problem of disposal of concrete scrap of dismantled building structures is relevant for most countries of the world. For Ukraine, this problem is even more acute due to the significant amount of destruction caused by hostilities and rocket attacks. In current research the properties of concrete and fibre-reinforced concrete for the bases of road clothes based on natural and secondary aggregates were compared: granite river gravel, secondary crushed stone with a heterogeneous composition, quartz sand and secondary sand from recycled reinforced concrete structures. CEM III/A slag Portland ce

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Khafizova, E. N., I. F. Panchenko, and D. A. Panchenko. "Use of rock crushing technological wastes for cement concrete compositions." Russian Automobile and Highway Industry Journal 18, no. 6 (2022): 790–99. http://dx.doi.org/10.26518/2071-7296-2021-18-6-790-799.

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Introduction. the article deals with the issues of the use of technological waste generated during rocks crushing.Materials and Methods. In the research the rock crushing screenings from the Rezhevsky crushed rock plant and dolomite screenings from the Satkinsky crushed rock plant were used. The data on the physical-mechanical properties of crushing waste is presented, as well as a study of dusty rock cuttings made with a Fritsch Analysette 22 laser particle size analyser. The structure of concrete was analyzed by JEOL JSM-6510 electron microscope.Results. The studying results of heavy weight

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Belebchouche, Cherif, Karim Moussaceb, Salah-Eddine Bensebti, Abdelkarim Aït-Mokhtar, Abdelkader Hammoudi, and Slawomir Czarnecki. "Mechanical and Microstructural Properties of Ordinary Concrete with High Additions of Crushed Glass." Materials 14, no. 8 (2021): 1872. http://dx.doi.org/10.3390/ma14081872.

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This study investigates the use of crushed glass waste as partial cement replacement in ordinary concretes. Six concrete mixes were designed and prepared: a reference without substitution and five substitution percentages of crushed glass waste ranging from 5% to 25%. The made concrete mix design underwent different tests, namely: slump test, mechanical strength, thermogravimetric analysis (TGA), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) determination and finally, water porosimetry, in order to evaluate the influence of the use of crushed glass waste on the properties of fresh and

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27

Saeed, Rusul Hussain, and Nada Mahdi Fawzi. "Effect of Crushed Concrete on Some Properties of Modified Reactive Powder Concrete Reinforced With Micro Steel Fibers." Journal of Engineering 31, no. 1 (2025): 120–34. https://doi.org/10.31026/j.eng.2025.01.07.

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Conventional RPC does not contain coarse content aggregate, but some researchers incorporate coarse aggregate. Those researchers used coarse aggregate to produce RPC, the new RPC known as modified reactive powder concrete (MRPC). This paper shows the findings of a study that looked into using crushed concrete as aggregates. The crushed concrete was taken from examined cube spacemen of a road project in the city of Baghdad and then crushed until they were no bigger than 10 mm. Micro steel fibres (1% by volume of the concrete) and crushed concrete (25% and 100%) of the original reactive powder c

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Ayada, Marwa, and Nagham Tariq Al-Shafi’i. "PROPERTIES OF NORMAL STRENGTH CONCRETE WITH TREATED CRUSHED BRICK AND RECYCLED CONCRETE AS COARSE AGGREGATE." Journal of Engineering and Sustainable Development 26, no. 2 (2022): 30–39. http://dx.doi.org/10.31272/jeasd.26.2.4.

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The results of a research program conducted at the University of Mustansiriayah in Iraq to analyze the qualities of concrete created with crushed bricks and crush concrete are presented in this paper. To make a suitable aggregate, these materials were crushed. Some aggregates were treated, while others were not. The properties investigated were the workability and the density of fresh the aggregates of crushed bricks and crush concrete were treated in some mixtures and others were not treated. The properties investigated were the workability and the density of fresh concrete, and the compressi

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Mahajan, Akshat, and Pushpendra Kumar Sharma. "Influence of substituting aggregates on the characteristics of high-strength concrete." IOP Conference Series: Earth and Environmental Science 1327, no. 1 (2024): 012012. http://dx.doi.org/10.1088/1755-1315/1327/1/012012.

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Abstract High-strength concrete (HSC) is a specialized form of concrete that possesses enhanced compressive strength compared to conventional concretes. In the initial phase of the experimental study, silica fume and metakaolin were utilized as additional supplementary cementitious materials in various percentages ranging from 6% to 12% for making different trails to obtain the concrete mix with high strength. Test results indicated that trail mix having 10% silica fume and metakaolin gave the desired strength. The second phase of the study incorporates the utilization of crushed granite coars

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Elat, Emmanuel, Prosper Pliya, Alexandre Pierre, Michel Mbessa, and Albert Noumowé. "Microstructure and Mechanical Behavior of Concrete Based on Crushed Sand Combined with Alluvial Sand." CivilEng 1, no. 3 (2020): 181–97. http://dx.doi.org/10.3390/civileng1030011.

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The aim of this work is to reduce the overexploitation of river sand by proposing a combination of crushed sand and river sand to develop an optimal mix design for concrete. The approach used consisted of a physical, chemical, and mineralogical characterization of aggregates from three quarries located in Yaoundé (Cameroon), followed by the formulation of concrete by substituting 100%, 90%, 80%, 70%, 50%, and 0% of the river sand with crushed sand. A physical and mechanical characterization of the concrete was carried out, as well as a microstructural characterization using SEM/EDS. The result

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Abed, Mohammed, and Rita Nemes. "Los Angeles index and water absorption capacity of crushed aggregates." Pollack Periodica 15, no. 1 (2020): 65–78. http://dx.doi.org/10.1556/606.2020.15.1.7.

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Abstract The mechanical and physical properties of the crushed aggregate have been studied. The properties of crushed aggregate, which produced from recycled aggregate concrete is not discussed in the literature yet despite it could be a choice in some circumstances like in case of demolishing the structures that already constructed by recycled aggregate concrete. Twenty-two types of self-compacting high-performance concrete made by coarse natural aggregate and coarse recycle concrete aggregate have been crushed and their properties have been studied. The main findings of the present study tha

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Lu, Mei Jun, Su Yang, Xue Zhen Feng, and Shun Bo Zhao. "Experimental Study on Thermal Conductivity of Concrete for Building Reinforced Concrete Composite Wall." Applied Mechanics and Materials 438-439 (October 2013): 329–32. http://dx.doi.org/10.4028/www.scientific.net/amm.438-439.329.

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In order to determine the thermal conductivity of the concrete for building reinforced concrete composite wall, the fine-aggregate concrete for the thermal insulation layer and the composite concrete for the reinforced concrete wall were made from the ordinary concrete by in-situ wet-sieving techniques. The compositions of these three kinds of fresh concrete were determined, which expressed by the volume fraction of crushed stone and the volume ratio of crushed stone to mortar. The thermal conductivity of concrete was measured by the one-dimensional steady heat flow meter. Based on the tests,

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Feng, Zhuqing, Jue Lu, Simin Liu, et al. "Performance Evaluation of Pebble Concrete for Pavement: A Study on the Sucre Highway Project." Materials 17, no. 20 (2024): 4994. http://dx.doi.org/10.3390/ma17204994.

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Bolivia has abundant pebbles, while the supply of crushed stone is limited and unstable. Thus, the resource utilization of local pebble as a coarse aggregate and the guarantee of concrete durability are the key scientific issues in the Sucre Highway Project. In this paper, a comparative analysis was conducted of the performance of crushed stone concrete and pebble concrete. Additionally, the impact of fly ash on the water permeability resistance of concrete was investigated. The results indicate that the apparent density, bulk density, and void ratio of pebbles are lower than those of crushed

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Coppola, L., P. Kara, and S. Lorenzi. "Concrete manufactured with crushed asphalt as partial replacement of natural aggregates." Materiales de Construcción 66, no. 324 (2016): 101. http://dx.doi.org/10.3989/mc.2016.06515.

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The paper focuses on the reuse of crushed asphalt (GA) as a partial replacement (up to 20%) of natural aggregates for concrete manufacture. Addition of GA aggregates produced a positive effect on workability loss. The GA mixes, however, showed a significant tendency to bleed and segregate at the highest replacement percentage applied. GA led to a decrease of compressive strength in concrete (with respect to that of the reference concrete) up to 50% due to the weakness of the cement paste / recycled aggregate interface. To compensate for this negative effect, a reduction of w/c for the GA concr

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Irfan, Irfan Ullah, Shah Masoud Mokhlis, and Elyass Khan Raheemi. "Effect of Various Coarse Aggregates on the Compressive Strength of Concrete in Jalalabad City, Afghanistan." Nangarhar University International Journal of Biosciences 03, ICCC(special) (2024): 318–22. http://dx.doi.org/10.70436/nuijb.v3i02.227.

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One of the most frequently used building materials on the globe is concrete. Concrete is composed of aggregate, water, and cement. This study investigated the influence of different coarse aggregates on the compressive strength of concrete. The coarse aggregates used in the experimental design consisted of crushed granite, crushed river stone, and natural gravel, with river sand as the fine aggregate. Sieve analysis and unite weight was performed on specimens frequently used by citizens. Fresh Portland cement and water-cement ratios of 0.55 and 0.7 were both used. To investigate the influence

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Bazhenov, Yu M., S.-A. Yu Murtazaev, D. K.-S. Bataev, A. H. Alaskhanov, T. S. A. Murtazaeva, and M. S. Saydumov. "High-strength concretes based on anthropogenic raw materials for earthquake resistant high-rise construction." Engineering Solid Mechanics 9, no. 3 (2021): 335–46. http://dx.doi.org/10.5267/j.esm.2021.1.004.

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This work is devoted to development of optimum recipes of high-strength concretes based on filled binders with fine-milled anthropogenic mineral filler intended for earthquake resistant high-rise monolithic construction. The optimum recipes of concretes in this work have been developed on the basis of computations and experimental designing of cast concrete mixes with chemical additives and anthropogenic mineral fillers, as well as destructive inspection methods as the most precise for analysis of physicomechanical and deformation properties of concrete. The following raw materials have been u

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Trykoz, Liudmyla, Oleksii Zinchenko, Andrii Nykytynskyi, and Oleksandr Romanenko. "PARTICLE-SIZE DISTRIBUTION ASSESSMENT OF THE RECYCLED AGGREGATES FROM CONCRETE REMAINS." Collection of Scientific Works of the Ukrainian State University of Railway Transport, no. 206 (December 11, 2023): 121–28. http://dx.doi.org/10.18664/1994-7852.206.2023.296685.

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The reuse of the remainders of destroyed concrete structures is becoming more and more urgent problem not only in Ukraine, but also in the whole world. According to the current strategy of secondary use of resources, concrete waste is either crushed into recycled aggregate as a substitute for natural aggregate or crushed into recycled powder as a substitute for cement in mortar and concrete. The reuse of construction waste as secondary construction materials can reduce the need for natural resources for construction and free areas from accumulated construction debris. The purpose of the work i

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Toplicic-Curcic, Gordana, Zoran Grdic, Iva Despotovic, and Nenad Ristic. "Influence of crushed stone aggregate type on concrete consistency." Facta universitatis - series: Architecture and Civil Engineering 8, no. 1 (2010): 99–109. http://dx.doi.org/10.2298/fuace1001099t.

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The main reason for usage of crushed stone mineral aggregate is need for concrete construction building with care about environmental protection, water resources, etc. Influence of crushed stone mineral aggregate on concrete consistency is considered in this paper. River aggregate is used as a benchmark, and from crushed aggregates: limestone, andesite, diabase and basalt. The drawn conclusion is that fine crushed aggregate has an important influence on concrete consistency because it decreases concrete's workability and placing. Replacement with river aggregate improves concrete consistency.

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Falikman, V. R., and P. N. Sirotin. "Prospects of using crushed stone in accordance with GOST 32703 to produce concrete for general civil construction." Bulletin of Science and Research Center of Construction 33, no. 2 (2022): 194–212. http://dx.doi.org/10.37538/2224-9494-2022-2(33)-194-212.

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Introduction. With the introduction of a new national standard GOST 32703–2014 “Automobile roads of general use. Crushed stone and gravel from rocks. Technical requirements”, mining companies producing crushed stone from dense rocks faced the problem of ensuring the production output in compliance with two significantly different standards, both regulating the properties of crushed stone. The complexity of a balanced approach to production planning and stock reserve maintenance determines the need to assess the possibility of using crushed stone produced according to GOST 32703 when producing

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RABEHI, Rachid, Mohamed AMIEUR, and Mohamed RABEHI. "The effect of finely ground dune sand on the properties of self-compacting concrete." International Conference on Applied Engineering and Natural Sciences 1, no. 1 (2023): 984–88. http://dx.doi.org/10.59287/icaens.1120.

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Self-compacting concrete (SCC) is a unique concrete that has been developed over the past thirty years. They have the distinct characteristic of being very fluid. SCC differs from conventional vibrated concrete (CVC) in that it is incredibly fluid and doesn't require vibration. In order to reduce the amount of cement required by the increase in paste volume required to allow the concrete to flow, self compacting concretes require a large volume of mineral input. The main goal of this research was to ascertain how replacing cement with crushed dune sand (Sd) affected the SCC's physical and mech

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Kallak, Fadia S. "Use of Crushed Bricks as Coarse Aggregate in Concrete." Tikrit Journal of Engineering Sciences 16, no. 3 (2009): 64–69. http://dx.doi.org/10.25130/tjes.16.3.06.

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The investigation reported in this paper is carried out to study the feasibility of using crushed bricks to substitute the coarse aggregate (gravel) in concrete. Two types of concrete mixing are prepared. The first one is a mixture of 1:2:4 without crushed bricks and is used as a reference mixture .The second one is made of different weight of crushed bricks (as a percentage from the weight of the coarse aggregate). A total of 30 numbers of concrete specimens are casted with and without crushed bricks and tested under compression and split tension as per relevant to British standard specificat

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Arulrajah, A., J. Piratheepan, M. W. Bo, and N. Sivakugan. "Geotechnical characteristics of recycled crushed brick blends for pavement sub-base applications." Canadian Geotechnical Journal 49, no. 7 (2012): 796–811. http://dx.doi.org/10.1139/t2012-041.

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This paper presents the findings of a laboratory investigation on the characterization of recycled crushed brick when blended with recycled concrete aggregate and crushed rock for pavement sub-base applications. The engineering properties of the crushed brick blends were compared with typical state road authority specifications in Australia for pavement sub-base systems to ascertain the potential use of crushed brick blends in these applications. The experimental programme included particle-size distribution, modified Proctor compaction, particle density, water absorption, California bearing r

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Mohsin, Sharifah Maszura Syed, Hanis Nadia Ruslan, Khairunisa Muthusamy, and Nur Farhayu Ariffin. "Compressive Strength of Lightweight Aggregate Concrete Containing Crushed Cockle Shell as Partial Sand Replacement." Key Engineering Materials 912 (March 4, 2022): 111–18. http://dx.doi.org/10.4028/p-ght9fy.

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The widespread use of natural sand mined from the river for concrete production worldwide causes environmental degradation. The cockle shell waste from aquaculture industry which discarded at dumpsite also pollutes the environment. Utilization of cockle shell as partial sand replacement in concrete would reduce the harvesting of sand from the river and limit the waste dumping from cockle industry. The experimental research investigates the effect of different sizes crushed cockle shell (600µm and 2.36mm) as partial sand replacement on the workability and compressive strength of lightweight agg

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Efimov, Vladimir, Denis Pogodin, and Myhammet Fakhratov. "Technological processes of reusing crushed concrete in the demolition of buildings in construction." E3S Web of Conferences 110 (2019): 01038. http://dx.doi.org/10.1051/e3sconf/201911001038.

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The paper is dedicated to waste processing management in waste processing technology. Processing of scrap concrete waste, similar in composition and condition to traditional raw materials, is economically and ecologically feasible. Secondary crushed stone obtained by crushing scrap of reinforced concrete panels in demolished five-storey apartment blocks of the first phase was studied. It is shown that concrete with scrap concrete waste shows strength properties similar to primary concrete and helps organize waste-free production. The methods of recycled waste usage, especially usage of seconda

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Hamid, Roszilah, and M. A. Zubir. "The Flexural Properties of Reinforced Recycled Glass Concrete Beam." Materials Science Forum 803 (August 2014): 325–29. http://dx.doi.org/10.4028/www.scientific.net/msf.803.325.

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In this study, recycled glass is used to replace the natural fine aggregate in different mix proportions. The control samples are Grade 30 ordinary Portland cement concrete (OPCC) containing 100% natural sand and coarse aggregate. The recycled glass concretes contain 70% natural fine aggregate + 30% size 300 micron crushed glass (Sample 2), and 70% fine aggregate + 15% size 300 micron crushed glass + 15% size greater than 300 micron crushed glass (Sample 3).The recorded strength of the control, Sample 2 and 3 at 90 days are 47, 61 and 55 MPa. Although the compressive strength for the concrete

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Golewski, Grzegorz Ludwik. "Effect of Coarse Aggregate Type on the Fracture Toughness of Ordinary Concrete." Infrastructures 9, no. 10 (2024): 185. http://dx.doi.org/10.3390/infrastructures9100185.

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This research work aims to compare the strength and fracture mechanics properties of plain concretes, obtained from different coarse aggregates. During the study, mechanical parameters including compressive strength (fcm) and splitting tensile strength (fctm), as well as fracture parameters involving critical stress intensity factor (KIcS) and critical crack tip opening displacement (CTODc) were evaluated. The effect of the aggregates used on the brittleness of the concretes was also analyzed. For better understanding of the crack initiation and propagation in concretes with different coarse a

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Stuerwald, Simone, Ronny Meglin, Susanne Kytzia, and Sabrina Gilg. "Use of recycled concrete fines in cement and as aggregate." Acta Polytechnica CTU Proceedings 33 (March 3, 2022): 591–96. http://dx.doi.org/10.14311/app.2022.33.0591.

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The research project focused on investigating and optimizing the processing and use of recycled crushed sand 0/4 from concrete demolition waste, as an alternative raw material in the cement and concrete industry. Crushed sand is produced during the processing of concrete demolition waste. The goal was to identify the optimum way of using the processed material along the entire process chain so that greenhouse gas emissions, waste volumes are reduced, and natural resources are conserved. Different samples of laboratory and real crushed concrete fines were collected and examined in relation to v

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Hooton, RD, and AR Khaloo. "Crushed Tile Coarse Aggregate Concrete." Cement, Concrete and Aggregates 17, no. 2 (1995): 119. http://dx.doi.org/10.1520/cca10137j.

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Žurauskienė, Ramunė, and Marina Valentukevičienė. "Experimental Research on Quality Parameters of Recycled Concrete." Materials 13, no. 11 (2020): 2538. http://dx.doi.org/10.3390/ma13112538.

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Concrete itself, and issues relating to the recycling and management of reinforced concrete waste, are highly relevant, especially when urban expansion is being achieved by increased building construction volumes. This research investigates concrete waste and its (re)usage possibilities and resolves several major issues related to the question of how natural materials can be replaced by compounds made from concrete waste, thereby saving natural resources. The experiment was carried out using concrete mixtures, which were combined with natural aggregates and crushed concrete waste (fraction 4/1

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Bouglada, Mohammed Salah, Noui Ammar, and Belagraa Larbi. "Optimization of Cellular Concrete Formulation with Aluminum Waste and Mineral Additions." Civil Engineering Journal 7, no. 7 (2021): 1222–34. http://dx.doi.org/10.28991/cej-2021-03091721.

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The paper aims to study cellular concrete with a new approach of formulation without an autoclave, with the use of aluminum waste and incorporation of mineral additions into the sand and evaluate its physical and mechanical properties. In this experimental study, two types of cellular concrete are prepared, based on crushed and dune sand with the incorporation of 15% of the slag and 10% of pozzolana, as sand replacement. An experimental program was performed to determine the compressive strength at 28 days, the density and thermal conductivity of the confected cellular concrete. The obtained r

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