Calculation and analysis of carbon footprint of ready-mixed concrete based on LCA and research on carbon emission reduction technology
As one of the most important building materials consumables,ready-mixed concrete has enormous potential for car-bon reduction.This article takes ready-mixed concrete of different strength levels as the research object,and based on the Full Life Cycle Assessment method,carbon footprint analysis is conducted for each link,and corresponding carbon emission reduction technologies are studied.The carbon emissions during the life cycle of pumped ready-mixed concrete with strengths of C30,C35,and C40 are 273.19,291.06,320.10 kgCO2e/m3,respectively.The carbon emissions are positively correlated with the strength grade.Therefore,choosing low-carbon cement or reducing cement usage is the most direct and effective means to reduce the carbon emis-sions of ready-mixed concrete.In addition,auxiliary carbon reduction of concrete can also be achieved through the use of intelli-gent transportation,production technology,and CO2 concrete sealing technology.
万方数据
维普
