The gas anti-permeability and carbonation resistance of recycled concrete, which was prepared by using waste concrete as recycled coarse aggregate (RCA) and some cement and mineral additions as raw materials, were studied.

• 摘要以废弃混凝土为再生粗集料，再适当掺加一定量的水泥和矿物掺和料，制成再生混凝土。