Research on the Influence of Modifier Types and Solubility on the Mechanical Properties of Recycled Coarse Aggregate Concrete
Aiming at the defects of high water absorption and high crushing value of recycled coarse aggregate,it is proposed to use modifiers to treat recycled coarse aggregate,and explore the influence of modifier types and solubility on the performance of recycled aggregate and recy-cled concrete.The results show that using sodium silicate solution or silane solution for single modification can improve the physical properties of recycled coarse aggregate and the mechanical properties of recycled concrete.However,the composite modification effect is better than single modification,and the composite modification of 6%sodium silicate solution and 6%silane solution for recycled coarse aggregate and recycled concrete has the best comprehensive performance.The compressive strength and splitting tensile strength of recycled concrete are only reduced by 8.4%and 9.2%compared to ordinary concrete,respectively.
国家科技期刊平台
NSTL
万方数据
