The effects of additions of fly ash and fly ash-slag on elastic modulus of recycled aggregate concrete(RAC) are discussed,and the mechanism of action is researched in this paper.

• 研究了粉煤灰单掺、粉煤灰与矿渣双掺对再生骨料混凝土(RAC)弹性模量的影响,并初步探讨了其影响机理;建立了再生骨料混凝土弹性模量与立方体抗压强度的相关关系式。