首页|预拌混凝土碳排放计算及碳减排路径研究

预拌混凝土碳排放计算及碳减排路径研究

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预拌混凝土是建筑大宗材料之一,碳排放量庞大,在城市更新背景下其绿色低碳发展尤为重要.以C15~C60预拌混凝土为对象,基于生命周期理论开展碳排放计算与分析.研究得到:单方预拌混凝土的碳排放量随着强度等级的增加而提高;预拌混凝土生命周期4个阶段碳排放量为原材料生产>原材料运输>混凝土运输>混凝土生产,原材料生产碳排放占整体的77.53%~91.75%.由此,基于预拌混凝土的设计—生产—运输—管理及碳利用和封存技术等方面,提出了碳减排路径,探索预拌混凝土碳利用和封存技术,提升混凝土的固碳价值.
Study on Carbon Emission Calculation and Reduction Path of Ready-mixed Concrete
Ready-mixed concrete,as a major building material,contributes significantly to carbon emissions,making its green and low-carbon development crucial in the context of urban renewal.This study focuses on C15~C60 ready-mixed concrete,conducting carbon emission calculations and analysis based on life cycle theory.The findings indicate that carbon emissions of ready-mixed concrete increase with higher strength grades.The carbon emissions across the four life cycle stages of ready-mixed concrete are ranked as follows:raw material production>raw material transportation>concrete transportation>concrete production,with raw material production contributing 77.53%to 91.75%of the total carbon emissions.Accordingly,carbon reduction paths are proposed,focusing on design,production,transportation,management,and carbon utilization and sequestration techniques,to enhance the carbon sequestration potential of concrete.

ready-mixed concretelife cycle theorycarbon emission calculationcarbon reduction path

宋卉妍

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上海建工建材科技集团股份有限公司 上海 200438

预拌混凝土 生命周期理论 碳排放计算 碳减排路径

上海建工集团股份有限公司重点科研项目

21JCYJ-09

2024

建筑施工
上海建工(集团)股份有限公司

建筑施工

影响因子:0.584
ISSN:1004-1001
年,卷(期):2024.46(9)
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