颗粒整形再生骨料混凝土的物化环境影响  

Environmental impact of particle shaping aggregate recycled concrete

作　　者：韩碧莹 龚志起[1] 陈柏昆[1] 李滢[1] 

机构地区：[1]青海大学土木工程学院,青海西宁810016

出　　处：《混凝土》2017年第8期52-54,共3页Concrete

基　　金：国家自然科学基金(71463047)

摘　　要：为了评估颗粒整形过程对环境的影响,采用货币化的生命周期影响评价方法分析颗粒整形再生骨料混凝土的物化环境影响,核算3组不同配合比的天然骨料混凝土和颗粒整形再生混凝土的环境影响成本。研究表明:颗粒整形再生混凝土的物化环境影响低于天然骨料混凝土,且混凝土的环境影响随着再生粗骨料替代率的增加而降低;经颗粒整形强化后的再生骨料对环境影响折减的效果明显,具有显著的环境效益。In order to evaluate the effect of particle shaping on the environment, the embodied environmental impact of panicle shaping recycled aggregate concrete was analyzed by using the monetary valuation method in life cycle assessment.The environmental impact cost of three groups of concrete mix proportion of natural aggregate concrete and particle shaping recycled aggregate concrete were calculated. The results show that the environmental impact of panicle shaping recycled aggregate concrete is lower than that of natural aggregate con- crete, and it decreases with the increase of substitution rate of recycled coarse aggregate.The environmental impact of particle shaping re- cycled aggregate brings out obviously significant environmental benefits.

关 键 词：环境影响 颗粒整形 再生混凝土 生命周期影响评价 

分 类 号：TU528.01[建筑科学—建筑技术科学]