Sustainable Zero-Slump Concrete Containing Recycled Aggregates from Construction and Demolition Waste of a 63-Year-Old Demolished Building

AbstractIn this study, recycled concrete aggregate (RCA) from construction and demolition waste (CDW) was utilized in zero-slump concrete (ZSC) to produce M-40 grade paver blocks. Initially, coarse RCA (4.75 to 10 mm in diameter) replaced natural coarse aggregate (NCA) and fresh (slump, compaction f...

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Veröffentlicht in:	Journal of materials in civil engineering 2022-07, Vol.34 (7)
Hauptverfasser:	Kumar, Gyanendra, Gupta, Ramesh Chandra, Shrivastava, Sandeep
Format:	Artikel
Sprache:	eng
Schlagworte:	Abrasion resistance Aggregates Building materials Bulk density Civil engineering Compressive strength Concrete aggregates Concrete construction Demolition Environmental impact Error analysis Flexural strength Fourier transforms Infrared analysis Infrared spectroscopy Microstructural analysis Natural resources Production costs Scanning electron microscopy Spectrum analysis Storage modulus Sustainable development Technical Papers Tensile strength Thermogravimetric analysis Void ratio Waste disposal Water absorption
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Zusammenfassung:	AbstractIn this study, recycled concrete aggregate (RCA) from construction and demolition waste (CDW) was utilized in zero-slump concrete (ZSC) to produce M-40 grade paver blocks. Initially, coarse RCA (4.75 to 10 mm in diameter) replaced natural coarse aggregate (NCA) and fresh (slump, compaction factor, density) and hardened (compressive strength, water absorption, abrasion resistance) properties were investigated to optimize its replacement percentage. Then, the feasibility of incorporating RCA (
ISSN:	0899-1561 1943-5533
DOI:	10.1061/(ASCE)MT.1943-5533.0004257