粉煤灰混凝土生命周期评价初步研究

Preliminary Study on Life Cycle Assessment of Concrete Containing Fly Ash

采用生命周期评价(LCA)方法评价了掺不同等级不同含量粉煤灰混凝土的环境影响。研究表明,粉煤灰的掺入可以有效减少混凝土生产过程中的煤耗、CO2、NOX、SO2以及废弃物的排放,但并不能有效减少CO、CXHY排放量。因此可认为粉煤灰混凝土是一种很好的生态材料。

In this paper the impact of concrete containing different rate and percentage of fly ash on environment is described by using life cycle assessment method. The study shows that the mixing of fly ash can effectively reduce the commotion of coal and the discharge of CO2, NOx, SO2 and the solid wastes, but can not reduce the discharge of CO and CXHY, so the concrete containing fly ash can be thought as a good ecological material.