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Appl. Sci. 2018, 8(2), 188; https://doi.org/10.3390/app8020188

Experimental Study on Punching Performance of Recycled Aggregate Concrete Thin Wallboard with Single-Layer Reinforcement

1
Office of Postdoctoral Research, Beijing University of Technology, Beijing 100124, China
2
College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China
3
Beijing Urban Construction Design & Development Group Co. Limited, Beijing 100034, China
*
Author to whom correspondence should be addressed.
Received: 19 December 2017 / Revised: 17 January 2018 / Accepted: 18 January 2018 / Published: 26 January 2018
(This article belongs to the Section Materials)

Abstract

Recycle Aggregate Concrete (RAC) is a common “green” product used for a variety of purposes, although the durability and strength of the material still need more research to adequately determine influences on these parameters. The failure pattern, punching bearing capacity, and deflection variation of wallboard of both ordinary concrete and RAC with various rebar reinforcement diameters and spacing were analyzed. Based on experimental data, the ABAQUS finite element analysis of the thin wallboard was performed, and the calculated results are in good agreement with the experimental results. The results show that the failure characteristics of ordinary concrete wallboards and RAC wallboards are similar, but the brittleness of the RAC specimens is more significant. Under the same reinforcement ratio, concrete material, whether new or recycled, had little effect on the punching bearing capacity of the specimens. In the case of a low reinforcement ratio, increasing the reinforcement ratio (decreasing the spacing of steel bars) can effectively improve the bearing capacity of the wallboard. Under the same reinforcement ratio, the wallboard with larger diameter and larger spacing has a higher bearing capacity and less deformation after failure. View Full-Text
Keywords: recycle aggregate concrete; thin wallboard with single-layer reinforcement; punching bearing capacity; experimental research; simulation recycle aggregate concrete; thin wallboard with single-layer reinforcement; punching bearing capacity; experimental research; simulation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Liu, W.; Cao, W.; Zong, N.; Wang, R.; Ren, L. Experimental Study on Punching Performance of Recycled Aggregate Concrete Thin Wallboard with Single-Layer Reinforcement. Appl. Sci. 2018, 8, 188.

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