EXPERIMENTAL RESEARCH ON MECHANICAL PROPERTY OF REINFORCED RECYCLED AGGREGATE COARSE CONCRETE FLOOR-SLAB

Chen Zongping; Yang Yibin; Zheng Shufang; Su Yisheng

doi:10.13204/j.gyjz201305012

Volume 43 Issue 5

Dec. 2014

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Chen Zongping, Yang Yibin, Zheng Shufang, Su Yisheng. EXPERIMENTAL RESEARCH ON MECHANICAL PROPERTY OF REINFORCED RECYCLED AGGREGATE COARSE CONCRETE FLOOR-SLAB[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(5): 52-56,127. doi: 10.13204/j.gyjz201305012

Citation:

Chen Zongping, Yang Yibin, Zheng Shufang, Su Yisheng. EXPERIMENTAL RESEARCH ON MECHANICAL PROPERTY OF REINFORCED RECYCLED AGGREGATE COARSE CONCRETE FLOOR-SLAB[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(5): 52-56,127. doi: 10.13204/j.gyjz201305012

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EXPERIMENTAL RESEARCH ON MECHANICAL PROPERTY OF REINFORCED RECYCLED AGGREGATE COARSE CONCRETE FLOOR-SLAB

doi: 10.13204/j.gyjz201305012

1.
1. College of Civil Engineering and Architecture,Guangxi University,Nanning 530004,China;
2.
2. Guangxi Key Laboratory of Disaster Prevention and Engineering Safety,Nanning 530004,China

Received Date: 2012-05-09
Publish Date: 2013-05-20

Abstract

Abstract

In order to study the mechanical behavior of reinforced recycled concrete floor-slab, 6 specimens including 3 one-way slabs and 3 two-way slabs were designed, and the recycled coarse aggregate replacement percentage was primarily considered in the test, which were 0%, 50%, 100%.From the test, failure patterns, the loading-displacement curve, the development situation of the deflection in mid-span and the ultimate bearing capacity were obtained, and the influence of the recycled coarse aggregate replacement percentage was analyzed.The existing related standards at home were used to calculate their bearing capacity, compared and analyzed with measured results.The results of study show that the failure modes of the reinforced recycled concrete floor-slab is similar to the normal reinforced concrete floor-slab.Before cracking of concrete, the deflection of the floor-slab is basically the linear increase as the load increases;after cracking of concrete, the deflection's enlargement of the reinforced recycled concrete floor-slab has mutations.The flexural rigidity of the reinforced recycled concrete one-way floor-slab is better than the normal reinforced concrete one-way floor-slab, but the flexural rigidity of the two-way floor-slab is opposite.Compared with the normal reinforced concrete floor-slab, the reinforced recycled concrete floor-slab has the similar cracking bearing capacity, and a higher ultimate bearing capacity.The results can provide reference and basic for further research and application of the reinforced recycled concrete slab component.
- recycled concrete,
- concrete floor-slab,
- limit bearing capacity,
- deflection

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References(10)

References

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