Abstract
Recycled concrete brick (RCB) is manufactured by recycled aggregate processed from discarded concrete blocks arising from the demolishing of existing buildings. This paper presents research on the seismic performance of RCB masonry walls to assess the applicability of RCB for use in rural low-rise constructions. The seismic performance of a masonry wall is closely related to the vertical load applied to the wall. Thus, the compressive performance of RCB masonry was investigated firstly by constructing and testing eighteen RCB masonry compressive specimens with different mortar strengths. The load-bearing capacity, deformation and failure characteristic were analyzed, as well. Then, a quasi-static test was carried out to study the seismic behavior of RCB walls by eight RCB masonry walls subjected to an axial compressive load and a reversed cyclic lateral load. Based on the test results, equations for predicting the compressive strength of RCB masonry and the lateral ultimate strength of an RCB masonry wall were proposed. Experimental values were found to be in good agreement with the predicted values. Meanwhile, finite element analysis (FEA) and parametric analysis of the RCB walls were carried out using ABAQUS software. The elastic-plastic deformation characteristics and the lateral load-displacement relations were studied.
Highlights
China is a large resource consumer because of the rapid growth of its economics and environmental issues
The failure patterns of the Recycled concrete brick (RCB) masonry are similar to common clay brick masonry when subjected to axial compression
For the RCB masonry walls with vertical reinforcement, the concealed concrete columns are effective in restricting the deformations and cracks of the wall and inducing the failure patterns to transform from brittleness to ductility
Summary
China is a large resource consumer because of the rapid growth of its economics and environmental issues. Results have shown that an RCB masonry building with vertical reinforcement exhibited better seismic performance and a lighter degree of damage than that of the ordinary RCB masonry building He et al [10] studied the compressive and bending performance of RCB with a compressive strength range from 15 to 30 MPa. The impact of recycled aggregate on the solid concrete brick mechanical. The test results show that the seismic performance of recycled concrete perforated brick masonry is similar to those of ordinary concrete perforated brick walls with good hysteresis loops and ductility, as well as strong energy dissipation capacities He et al [12] studied the drying shrinkage performance of solid concrete bricks made from recycled coarse aggregate. The paper aims to investigate its superiority to traditional approaches that are accepted internationally and to explore its applicability in rural areas
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
