scholarly journals Experimental study on deflection of recycled concrete twoway slab under concentrated load

2021 ◽  
Vol 687 (1) ◽  
pp. 012044
Author(s):  
Pengjie Hu ◽  
Guangxiu Fang ◽  
Zhongwei Li
Keyword(s):  
Experimental Study ◽  
Recycled Concrete ◽  
Concentrated Load

Experimental Study on Compressive Strength of Recycled Aggregate Concrete with Different Replacement Ratios

2012 ◽  
Vol 174-177 ◽  
pp. 1277-1280 ◽  
Author(s):  
Hai Yong Cai ◽  
Min Zhang ◽  
Ling Bo Dang
Keyword(s):  
Experimental Study ◽  
Compressive Strength ◽  
Failure Mode ◽  
Failure Process ◽  
Recycled Concrete ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Recycled Aggregates ◽  
Replacement Ratio ◽  
Aggregate Concrete

Compressive strengths of recycled aggregate concrete(RAC) with different recycled aggregates(RA) replacement ratios at 7d, 28d, 60d ages are investigated respectively. Failure process and failure mode of RAC are analyzed, influences on compressive strength with same mix ratio and different RA replacement ratios are analyzed, and the reason is investigated in this paper. The experimental results indicate that compressive strength of recycled concrete at 28d age can reach the standard generally, it is feasible to mix concrete with recycled aggregates, compressive strength with 50% replacement ratio is relatively high.

Experimental study on curved steel-concrete-steel sandwich shells under concentrated load by a hemi-spherical head

2019 ◽  
Vol 137 ◽  
pp. 117-128 ◽  
Author(s):  
Chen Yan ◽  
Yonghui Wang ◽  
Ximei Zhai ◽  
Lingzhao Meng ◽  
Hongyuan Zhou
Keyword(s):  
Experimental Study ◽  
Concentrated Load ◽  
Spherical Head ◽  
Sandwich Shells ◽  
Curved Steel

Experimental Study on the Shear Behavior of Recycled Concrete with Artificial Sand

2013 ◽  
Vol 405-408 ◽  
pp. 2538-2543
Author(s):  
Wen Wu Lan ◽  
Zhi Peng Yao ◽  
Yi An ◽  
Li Chen
Keyword(s):  
Experimental Study ◽  
Shear Force ◽  
Coarse Aggregate ◽  
Stress Test ◽  
Strain Curve ◽  
Recycled Concrete ◽  
Peak Strain ◽  
Natural Sand ◽  
Shear Behaviors ◽  
Shear Strain Curve

This study examines the shear behaviors of concrete structure with recycled concrete and artificial sand (AS). Thirty-six beams were prepared with two strength grades (C35, C45) and different artificial sand replacement rates (0%, 30%, 50%, 70%, and 100%). They were submitted to four-point static stress test in order to distinguish the shear behaviors of ASCRC (AS-containing recycled concrete) and of natural concrete that is fabricated using original coarse aggregate and natural sand. Experimental results found the shear strengths values of the ASCRC were lower than the nature ones, with decreasing extents less than 20%. When AS-containing level ranged from 30% to 70%, the cube compressive and shear strengths were more lower than other replacement ratios. Shear force-shear strain curve of the ASCRC was found similar to that of the nature concrete. The peak strain of the ASCRC rose with the increase of the shear strength, but the slope of the curves was lower.

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