再生骨料钢筋混凝土剪力墙干燥收缩性能  

Drying Shrinkage of Recycled Aggregate Reinforced Concrete Shear Wall

作　　者：崔正龙[1] 庄宇[1] 汪振双[2] 

机构地区：[1]辽宁工程技术大学土木建筑工程学院,辽宁阜新123000 [2]大连理工大学建筑材料研究所,辽宁大连116024

出　　处：《建筑材料学报》2011年第2期275-277,共3页Journal of Building Materials

基　　金：辽宁省教育厅资助项目(2008282);辽宁工程技术大学博士后基金资助项目(70DZ45)

摘　　要：在约束条件下对再生骨料钢筋混凝土剪力墙和普通钢筋混凝土剪力墙进行了干燥收缩应变测试,同时观察墙体表面干燥收缩裂缝产生的情况.结果表明:2种剪力墙内部收缩应变均明显小于相应的外表面收缩应变;2种剪力墙内部收缩应变相差不大;再生骨料钢筋混凝土剪力墙外表面收缩应变明显比普通钢筋混凝土剪力墙小,而细微收缩裂缝则明显增多.Drying shrinkage strains of recycled aggregate reinforced concrete shear wall and common reinforced concrete shear wall were measured under constraint conditions,and cracks situations on shear wall surface were observed.The results reveal that for recycled aggregate reinforced concrete shear wall and common reinforced concrete shear wall,the internal shrinkage strain are obviously less than surface shrinkage strain.There is a little difference of internal shrinkage strains between recycled aggregate reinforced concrete shear wall and common reinforced concrete shear wall.The surface shrinkage strain of recycled aggregate reinforced concrete shear wall is obviously lower than that of common reinforced concrete shear wall,while micro shrinkage cracks is obviously more than the latter.

关 键 词：再生骨料混凝土 钢筋混凝土剪力墙 干燥收缩裂缝 

分 类 号：TU528.79[建筑科学—建筑技术科学]