Results 1 to 10 of about 132,659 (311)

Mechanical properties of recycled concrete with demolished waste concrete aggregate and clay brick aggregate

Results in Physics, 2018
This paper presents an experimental investigation on the effect of the replacement of natural coarse aggregate (NCA) with either recycled concrete aggregate (RCA) or recycled clay brick aggregate (RBA) on the compressive strengths of the hardened ...
Chaocan Zheng, Cong Lou, Geng Du, Xiaozhen Li, Zhiwu Liu, Liqin Li   +5 more
doaj   +1 more source

Microstructural changes initiated by sintering of refractory concrete based on recycled bauxite aggregate [PDF]

, 2012
Concretes whose structure and final properties are shaped during thermal pre-treatment or during life-service at elevated temperatures can be applied as construction material for thermal insulation and/or refractory linings in high-temperatureoperating ...
Aćimović, Z. (Pavlović), Obradović, Nina, Pavlović, Ljubica, Terzić, Anja   +3 more
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Early age performance and mechanical characteristics of recycled PET fibre reinforced concrete [PDF]

, 2016
In this study the performance of concrete reinforced with fibres produced from waste non-biodegradable plastic, polyethylene terephthalate (PET), has been thoroughly investigated.
Baldacchino, Owen, Borg, Ruben Paul, Ferrara, Liberato   +2 more
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Eco-efficient concrete using industrial wastes: a review [PDF]

, 2011
Concrete is one of the most widely used construction materials in the world. However, the production of Portland cement as the essential constituent of concrete requires a considerable energy level and also releases a significant amount of chemical ...
Jalali, Said, Pacheco-Torgal, F., Shasavandi, Arman   +2 more
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Microbial carbonate precipitation for the improvement of quality of recycled aggregates

, 2017
High water absorption is the main drawback of recycled aggregates which greatly hinders the re-use of them in concrete production. In this study, bio-deposition treatment, based on bacterially induced CaCO3 precipitation, was applied to improve the ...
Boon, Nico, De Belie, Nele, Schoon, Joris, Vandevyvere, Brecht, Vanhessche, Sam, Wang, Jianyun   +5 more
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Toward Carbon Balance in Life Cycle: The Carbon Emission Assessment for the Recycled Coarse Aggregate Concrete

Advances in Civil Engineering
The “carbon balance” theory is introduced into the investigation on carbon emission throughout the recycled coarse aggregate concrete’s life cycle. It is aimed to study the carbon sink effect on the operation concrete stage, reveal the carbon balance of ...
Tengfei Nian, Yanlin Li, Xiaohua Jin, Zhenshuang Wang, Mian Wang, Yufei Wang   +5 more
doaj   +1 more source

Fracture energy of coarse recycled aggregate concrete using the wedge splitting test method: influence of water-reducing admixtures [PDF]

, 2017
The aim of this study is to evaluate the effect of the replacement levels of coarse natural aggregates with recycled aggregates and water-reducing admixtures on the fracture energy of concrete.
Barroqueiro, T., De Belie, Nele, de Brito, J., Evangelista, L., Garcia-Gonzalez, J., Juan-Valdes, A., Moran-del Pozo, J.   +6 more
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Damage mechanism investigation on fiber reinforced recycled cement aggregate concrete in a cold region

Scientific Reports
The microscopic, mechanical, and freeze–thaw cycle experimental programs were conducted to investigate the internal damage mechanism of carbon fiber-reinforced recycled concrete.
Wei Li, Zheng Li, Wenyuan Xu, Yongcheng Ji   +3 more
doaj   +1 more source

Frost resistance and improvement techniques of recycled concrete: a comprehensive review

Frontiers in Materials
In the pursuit of sustainable construction practices, the utilization of recycled concrete has emerged as a pivotal strategy, distinguished by its commitment to resource conservation and environmental stewardship.
Quan Ma, Zhenhua Duan, Jun Wang, Gang Yin, Xi Li   +4 more
doaj   +1 more source

Kesediaan bakal guru DPLI terhadap kursus elektromekanikal untuk mengajar di sekolah menengah: kajian di UTHM [PDF]

, 2013
Perkembangan pendidikan begitu pesat, mencabar dan canggih, memerlukan perhatian serius dalam kalangan guru. Maka tugas sebagai bakal guru di Malaysia kini kian mencabar. Oleh yang demikian kajian ini dijalankan khusus untuk mengenal pasti kesediaan
Nordin, Norhuzayanti
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