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建筑石膏与胶凝材料
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干混砂浆的碳减排途径

作者：章银祥1，2，王肇嘉1，2，刘洪波3，周文娟4，田胜力2，周宏研2

关键字：干混,砂浆,的,碳减排,途径,北京,建筑材料,

　
（1.北京建筑材料科学研究总院有限公司，北京  100041；
2.北京市预拌砂浆工程技术研究中心，北京  100041；
3.北京市散装水泥办公室，北京  100000；4.北京建筑大学，北京  100044）
    摘要：根据某干混砂浆企业的生产实际数据及其在碳减排方面的前期研究与实施结果，结合相关文献资料及我国干混砂浆行业的统计数据，对干混砂浆的碳排放情况及碳减排途径进行了研究。以全生命周期进行计算，水泥基普通砂浆、水泥基特种砂浆、耐水腻子、抹灰石膏的碳排放分别为141、297、274、126 kgCO2/t；其主要来源分别为水泥（65%）、水泥（74%）、灰钙（71%）、建筑石膏及其运输（49%）。干混砂浆生产及运输过程的碳排放较少，其中，普通砂浆约为12.5 kgCO2/t，特种砂浆约为20 kgCO2/t；2020年我国干混砂浆行业的碳排放量约为290万t。综合采用多种碳减排措施后，该干混砂浆企业2020年的碳减排量约为10万t。使用大宗固废配制产品并薄层施工，是干混砂浆行业碳减排的良好途径。
    关键词：碳减排；途径；干混砂浆
    中图分类号：TU528.52        文献标识码：A        文章编号：1001-702X（2022）09-0162-06
 
Carbon reduction pathway of dry-mixed mortars
ZHANG Yinxiang1，2，WANG Zhaojia1，2，LIU Hongbo3，ZHOU Wenjuan4，TIAN Shengli2，ZHOU Hongyan2
（1.Beijing Building Materials Academy，Beijing 100041，China；2.Beijing Engineering Research Center on Pre-mixed Mortars，Beijing 100041，China；3.Beijing Bulk Cement Office，Beijing 100000，China；4.Beijing University of Architecture，Beijing 100044，China）
    Abstract：It is researched on the carbon dioxide emission and carbon reduction pathway of dry-mixed mortars，by researching the actual production data of a dry mixed mortar factory and its preliminary research and implementation results in carbon emission reduction，combining with relevant literature as well as statistics of Chinese dry-mixed industry. The carbon dioxide emissions of ordinary cementious dry-mixed mortars，special cementious dry-mixed mortars，water-resistant putty and plastering gypsum is respectively 141，297，274，and 126 kgCO2/t by life-circle assessments，and the main factors is respectively cement（65%），cement（74%），calcium hydroxide（71%），building plaster and its transportation（49%）. The carbon dioxide emissions of dry-mixed mortars production and its transportation is small; as for ordinary and special dry-mixed mortars it is respectively about 12.5 and 20 kgCO2/t. The carbon dioxide emissions of Chinese dry-mixed mortars industry in 2020 is about 2.9 million tons. Annual carbon dioxide emission reduction of this dry-mixed mortars factory is about 100 000 tons in 2020 by adopting a variety of carbon reduction pathway. The carbon dioxide emissions of dry-mixed mortars could be significantly reduced by using solid wastes and thin layer construction.
    Key words：carbon dioxide emission reduction，pathway，dry-mixed mortars