Performance evaluation and mix proportion design of concrete using low‐quality recycled aggregate: Application for structural concrete in Vietnam

This study aims to promote the application of recycled aggregate concrete using low‐quality recycled aggregate, which can be easily obtained in Vietnam, mixed with normal aggregate. This is achieved by examining the performance evaluation of concrete using the relative quality index method and mix proportion design. If low‐quality recycled aggregate and normal aggregate can be combined in concrete in a suitable replacement ratio, as has been done in Japan, the proposed method can be used for structural concrete applications in Vietnam.