管桩填芯微膨胀混凝土配合比试验研究  

Test study on mix proportion of micro-expanding concrete with pipe pile core filled

作　　者：周雪玲[1] 刘守伟[1] 孙乙庭[1] 

机构地区：[1]吉林省水利水电勘测设计研究院,吉林长春130012

出　　处：《东北水利水电》2017年第9期46-48,62,共4页Water Resources & Hydropower of Northeast China

摘　　要：文中以空港新城拦河闸工程为例,针对微膨胀混凝土补偿收缩的特点,介绍了预应力管桩填芯混凝土的配合比试验。通过调整膨胀剂掺量、混凝土和易性、抗压强度以及限制膨胀率,优化微膨胀混凝土配合比,为设计和施工提供重要依据。Taking the barrage project of airport new town as an example,according to the characteristics of shrinkage-compensating of the micro-expanding concrete,the paper introduces the mix proportion test of the prestress concrete with pipe pile core filled.The mix proportion of the micro-expanding concrete are optimized by adapting the quantity of expansive agent,concrete workability,compressive strength and the limited expansion ratio,which could provide the important reference for design and construction.

关 键 词：管桩填芯 微膨胀混凝土 补偿收缩 限制膨胀率 试验研究 

分 类 号：TU528.1[建筑科学—建筑技术科学]