复合矿物掺合料开发及其在公路混凝土中的应用  

Development of composite mineral admixture and its application in highway concrete

作　　者：李家和 姬勇刚 严克波 李荣辉 李娟 高超 周永祥 LI Jiahe;JI Yonggang;YAN Kebo;LI Ronghui;LI Juan;GAO Chao;ZHOU Yongxiang(YCIC Highway construction Co.,Ltd.,Kunming 650032,China;YCIC High Construction Second Engineering Co.,Ltd.,Kunming 650034,China;China Academy of Building Research.,Beijing 100013,China;China National Construction Engineering Technology Research Center,Beijing 100013,China)

机构地区：[1]云南交投集团公路建设有限公司,云南昆明650032 [2]云南交投公路建设第二工程有限公司,云南昆明650034 [3]中国建筑科学研究院有限公司,北京100013 [4]国家建筑工程技术研究中心,北京100013

出　　处：《混凝土》2023年第7期173-176,共4页Concrete

基　　金：“十三五”国家重点研发计划项目“天然岩石粉制备绿色混凝土关键技术研究与应用”(2016YFC0701004-03)。

摘　　要：在建云临高速公路缺乏矿物掺合料,外运粉煤灰、矿渣粉等矿物掺合料成本较高,且质量波动大,影响混凝土工程建设质量。利用临沧当地的石灰石和硅灰资源开发了复合矿物掺合料,对比研究了粉煤灰与复合矿物掺合料对混凝土拌合物性能、力学性能和经济性,同时研究了复合矿物掺合料混凝土工程实体应用效果。结果表明:研发的复合矿物掺合料性能优良,其配制的不同强度等级混凝土性能、经济性均优于粉煤灰混凝土,复合矿物掺合料混凝土工程实体应用效果较好。Yunlin Expressway under construction is short of mineral admixtures.The cost of transporting mineral admixtures such as fly ash and slag powder is high,and the quality fluctuates greatly,which affects the quality of concrete engineering construction.The use of Lincang local limestone and silica fume resources to develop a composite mineral admixtures,comparative study of fly ash and composite mineral admixtures on the performance of concrete mixture,mechanical properties and economy,at the same time,study the application effect of composite mineral admixtures concrete engineering entity.The results show that the performance of the developed composite mineral admixture is excellent,the performance and economy of the concrete with different strength grades are better than that of fly ash concrete,and the application effect of composite mineral admixture concrete is better.

关 键 词：桥梁与隧道工程 复合矿物掺合料 混凝土性能 工程应用 

分 类 号：TU528.01[建筑科学—建筑技术科学]