C35～C40补偿收缩混凝土制备及其在工程中应用  

Preparation and engineering application of C35～C40 shrinkage compensating concrete

作　　者：李长成[1] 张铭[2] 黄胜[2] 

机构地区：[1]中国建筑材料科学研究总院,北京100024 [2]天津住宅集团建设工程总承包有限公司,天津300070

出　　处：《混凝土》2017年第10期160-162,共3页Concrete

摘　　要：采用硫铝酸钙-氧化钙双膨胀源膨胀剂HCSA制备C35~C40高性能补偿收缩混凝土。结果表明,C35~C40补偿收缩混凝土工作性能良好,混凝土28 d抗压强度分别为50.1、58.2 MPa,水中14 d限制膨胀率分别为0.022%、0.028%。此外,C35~C40补偿收缩混凝土成功应用于天津荣欢园地下工程,有效加快施工进度,并取得较好的抗裂防渗效果。C35-C40 high performance shrinkage compensating concrete were prepared by HCSA calcium sulphoaluminate hydrate-cal- cium hydroxide expansive agent for concrete.The results show that, C35-C40 shrinkage compensating concrete have better workability. Compressive strength of concrete at 28 days are 50.1 MPa and 58.2 MPa.Restrained expansion rate in water at 14 days are 0.022% and 0.028%, respectively.In addition, C35-C40 shrinkage compensating concrete have been successfully used in Tianjin RongHuan garden un- derground engineering.The construction progress is effectively accelerated.And the project has achieved better crack resistance and an- ti-seepage results.

关 键 词：HCSA膨胀剂 补偿收缩混凝土 限制膨胀率 抗裂防渗 

分 类 号：TU528.1[建筑科学—建筑技术科学]