韩锡云1,袁志刚1,张守治2,徐 文2
新型抗裂剂对不同强度等级混凝土自收缩的补偿
韩锡云1,袁志刚1,张守治2,徐 文2
摘 要:以苏州滨湖新城地下空间工程中所用的C35、C40、C45三种强度等级的混凝土为研究对象,系统研究了新型CaO类膨胀抗裂剂对不同强度等级混凝土自收缩的补偿效果。结果表明,新型HME?誖-Ⅴ混凝土高效抗裂剂对不同强度等级混凝土的自收缩均有明显的补偿作用,强度等级越低,补偿效果越好。
Abstract: The three strength grade concrete including C35, C40 and C45 used in Suzhou Binhu New City Underground Space are researched in this paper. The workability, mechanical properties and autogengous shrinkage compensation effect of them with or without the new CaO expansive agent have been studied. The results indicate that the HME?誖-Ⅴhigh cracking resistance agent has an excellent ability to compensate the autogenous shrinkage of the three strength grade concrete and the lower the concrete strength grade, the better the compensation effect.
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