Application performance of large volume recycled aggregate concrete for structures along the Yellow River
In order to make full use of the waste concrete removed from the structures along the Yellow River,it is a low-carbon development way to break it into recycled aggregate and reuse it in the river slope protection project.For this reason,it uses local materials to prepare recycled aggregate concrete,explores the mechanical properties and durability of recycled concrete,and analyzes the feasibility of its application in river slope protection.The results show that compared with natural aggregate concrete,when the composite content of recycled fine aggregate,recycled coarse aggregate and recycled aggregate does not exceed 70％,50％and 30％respectively,the compressive strength of recycled aggregate concrete can be controlled within 20％.The carbonation resistance of recycled concrete(HDX50,HDX70,HDC50)and the frost resistance of HDC50 are weakened,but the frost resistance of HDX50 and HDX70 is slightly improved.In addition,considering the performance and utilization ratio,recycled aggregate concrete HDX70 has the best effect,it can be used to prepare recycled concrete slope protection blocks and apply them to slope protection works.
万方数据
维普
