基于大掺量高炉矿渣-粉煤灰的低碳型混凝土制备及研究  

PREPARATIONAND RESEARCH OF LOWCARBONCONCRETE BASED ON HIGHDOSAGE OF BLAST FURNACE SLAGAND FLYASH

作　　者：把哈尔古丽·帕塔尔 陈雪桥 张旭龙 马淮北 孔维亮 Halgul Patar;Chen Xue-qiao;Zhang Xu-long;Ma Huai-bei;Kong Wei-liang

机构地区：[1]新疆建筑科学研究院(有限责任公司),乌鲁木齐830054

出　　处：《建筑技术开发》2025年第3期1-3,共3页Building Technology Development

摘　　要：根据新疆地区干燥、大温差、低温、盐渍等服役环境特点,以低碳排放、高抗蚀、阻裂增韧为设计理念,矿物掺合料替代部分水泥熟料,通过试验数据筛选分析,制备出一种绿色低碳型混凝土,同时对其混凝土工作性能、力学性能及耐久性进行分析;大掺量高炉矿渣-粉煤灰混凝土强度有所提升,在低标号区域较基准混凝土28 d抗压强度提高10%~40%;大掺量的矿渣和粉煤灰提高了混凝土的耐久性能,抗碳化性能、抗氯离子渗透性能、抗硫酸盐侵蚀较基准混凝土明显提升;大掺量高炉矿渣-粉煤灰混凝土的碳排放量明显下降,较同标号基准混凝土相比每立方减少27~41 kg/m^(3)的碳排放。Based on the characteristics of dry,large temperature difference,low temperature,saline and other service environments in Xinjiang,with the design concept of low carbon emissions,high corrosion resistance,crack resistance and toughening,mineral admixtures are used to replace some cement clinker.Through experimental data screening and analysis,a green low-carbon concrete is prepared,and its concrete workability,mechanical properties and durability are analyzed;The strength of high content blast furnace slag fly ash concrete has been improved,with a 10%to 40%increase in 28 day compressive strength compared to benchmark concrete in low-grade areas;The high dosage of slag and fly ash has improved the durability of concrete,with significant improvements in carbonation resistance,chloride ion penetration resistance,and sulfate corrosion resistance compared to benchmark concrete;The carbon emissions of high content blast furnace slag fly ash concrete have significantly decreased,with a reduction of 27~41 kg/m^(3) of carbon emissions per cubic meter compared to benchmark concrete of the same grade.

关 键 词：低碳排放 混凝土配合比 低水胶比 水化热反应 

分 类 号：TU63[建筑科学—建筑技术科学]