水下自密实混凝土力学性能的研究  

Mechanical Properties of Self-Compacting Concrete(SCC) Underwater

作　　者：王迎飞[1] 王胜年[1] 黄君哲[1] 潘德强[1] 

机构地区：[1]广州四航工程技术研究院中港集团建筑材料重点实验室,广东广州510230

出　　处：《水运工程》2004年第11期1-5,共5页Port & Waterway Engineering

基　　金：西部交通科技项目"水下混凝土材料及耐久性研究"项目编号:200231800045。

摘　　要：通过室外水槽模拟试验,研究自密实混凝土在水下的流动及填充能力,并与陆地成型混凝土进行对比,采用钻芯法及回弹超声波法进行测试,并通过数理统计进行分析。试验结果表明:水下自密实混凝土较陆地成型的混凝土力学离散程度稍有增加,对使用自密实混凝土钢筋结构部位在结构设计时,可以适当考虑减小钢筋间距或放宽粗骨料粒径。This paper studies the flow & fill property of self-compacting concrete (SCC) underwater by outdoor simulation experiment. Through comparison with SCC molded on land, based on the test adopting supersonic-elastic and drilled-core and regressive analysis as well, it is concluded that the deviation of SCC underwater is more than that of SCC on land, and we may consider to decrease the space between reinforced bars and increase the aggregate diameter to a proper extent during structural design of reinforcement structures adopting SCC.

关 键 词：自密实混凝土 流动能力 填充能力 结构设计 

分 类 号：TU502.6[建筑科学—建筑技术科学]