不同级配及组合骨料的混凝土配合比研究及工程应用  

Study and Engineering Application on Concrete Mix Proportion of Different Gradation and Combination Aggregate

作　　者：董海英 叶新 DONG Hai-ying;YE Xin(Power China Kunming Engineering Corporation Limited,Kunming 650051,China)

机构地区：[1]中国电建集团昆明勘测设计研究院有限公司,云南昆明650033

出　　处：《云南水力发电》2020年第9期225-228,共4页Yunnan Water Power

摘　　要：骨料约占混凝土总体积的3/4,其性质对混凝土的变形性能、力学性能及耐久性等都有重要的影响,规范中对水工混凝土骨料的级配及品质提出了要求,但根据实际料源供应情况,有时需考虑非水工骨料在水电站工程中的应用。结合桐子林水电站导流明渠工程,通过对比分析,研究了不同骨料比例、不同骨料级配对于混凝土配合比参数及其强度的影响,及非水工级配及组合骨料在该工程中的应用情况。Aggregate accounts for about 3/4 of total volume of concrete,and its properties have an important impact on the deformation performance,mechanical property and durability of concrete.The specification puts forward requirements on the gradation and quality of hydraulic concrete aggregate.However,according to the actual material supply,sometimes it is necessary to consider the application of non-hydraulic aggregates in hydropower projects.Combined with the diversion channel project of Tongzilin Hydropower Station,through comparative analysis,the influence of different aggregate proportion and aggregate gradation on concrete mix proportion parameters and strength,and the application of non-hydraulic gradation and combined aggregate in the project are studied.

关 键 词：组合骨料 级配 配合比 混凝土性能 桐子林水电站 

分 类 号：TV431[水利工程—水工结构工程]