精品文档---下载后可任意编辑CFRP 约束再生混凝土圆柱轴压力学性能讨论开题报告Title: Study on Axial Compressive Mechanical Properties of Recycled Concrete Cylinders Confined by CFRPIntroduction: With the rapid development of the construction industry, an enormous amount of concrete waste has been generated as construction and demolition wastes. Recycled aggregate concrete (RAC) has been proposed as a sustainable solution to the problem of concrete waste. However, RAC has lower mechanical properties compared to conventional concrete, especially in terms of compressive strength and ductility. The low ductility of RAC limits its application in construction projects, especially in seismic zones. Therefore, the use of advanced composites such as CFRP to improve the mechanical properties of RAC has attracted significant attention.In this proposed research, we aim to investigate the axial compressive mechanical properties of recycled concrete cylinders confined by CFRP. The research is expected to provide a better understanding of the performance of RAC under different loading conditions and to explore the potential of CFRP as a reinforcement material for RAC.Objectives: 1. To investigate the compressive strength and axial deformation capacity of recycled concrete cylinders under axial compressive loads.2. To evaluate the effect of CFRP confinement on the axial compressive mechanical properties of recycled concrete cylinders.3. To develop an analytical model to predict the axial compressive mechanical properties of recycled concrete cylinders confined by CFRP.Methodology:The proposed research will be conducted through a series of laboratory experiments and numerical simulations. The experimental program will involve casting and testing of 精品文档---下载后可任意编辑recycled concrete cylinders with and without CFRP confinement under axial compressive loads. The tests will be conducted according to the relevant standard specifications and guidelines.The data obtained from the experimental program will be used to compare the mechanical properties of recycled concrete with and without CFRP confinement. The numerical simulations will be conducted using finite element software to validate the experimental results and to develop an analytical model to predict the axial compressive mechanical properties of recycled concrete cylinders confined by CFRP.Expected outcomes: 1. A better understanding of the axial compressive mechanical properties of recycled concrete cylinders.2. An evaluation of the effectiveness of CFRP confinement on the mechanical properties of recycled concrete cylinders.3. An analytical model to predict the axial compressive mechanical properties of recycled concrete cylinders confined by CFRP.4. Recommendations on the use of CFRP as a reinforcement material for RAC in construction projects.
