道路水泥混凝土的环境影响评价

Environment Impact Assessment for Pavement Concrete

简要介绍生命周期评价的概念和方法,应用生命周期评价方法评价道路水泥混凝土的环境性能。再生混凝土的环境综合指标为8 18×10-12年,普通混凝土的环境综合指标为11 57×10-12年,由此表明前者具有更好的环境协调性。再生混凝土是道路水泥混凝土可持续发展的方向之一,可以通过降低水泥的环境负荷继续提高其环境性能。

The concept and method of life cycle assessment are simply introduced and the environment performance of pavement concrete is systemically estimated with LCA.The comprehensive environmental index of recycled concrete and common concrete are 8.18×10^(-12)per year and 11.57×10^(-12)per year respectively,which shows the environment performance of the former is better than the latter.The recycled concrete has been one of the sustainable development measures for pavement concrete and its environmental performance can be improved by continually decreasing the environmental burden of cement.