坍落度对预拌混凝土抗裂性能影响的试验研究  

Experimental research of slump on anti-cracking performance of ready-mixed concrete

作　　者：杨伟军[1] 陈维超[1] 王艳[1] 张登祥[1] 

机构地区：[1]长沙理工大学,湖南长沙410076

出　　处：《混凝土》2008年第10期89-91,共3页Concrete

摘　　要：通过试验来探讨外加剂和矿物掺合料共同作用下,不同坍落度对预拌混凝土开裂性能影响的规律和机理;考虑了不同掺量的粉煤灰和减水剂对预拌混凝土坍落度的影响以及对其力学性能的影响,分析不同坍落度条件下,预拌混凝土的力学性能所反应的抗裂性能的优劣,为更加直观、准确的把握预拌混凝土工程的早期工作性能提供有效的依据。The law and mechanism of anti-cracking performance of ready-mixed concrete on different slump by the effects of additives and mineral admixture together are discussed by test.The influence of mechanical properties and slump of ready-mixed concrete trader different amount of fly ash and water-reducing admixture is considered.The anti-cracking performance can be judged by the mechanical properties of ready-mixed concrete under the different slump conditions.Hence, an effective gist which can be more intuitive and accurate for grasping the early work of ready-mixed concrete is put forward.

关 键 词：坍落度 预拌混凝土 抗裂性能 

分 类 号：TU528.01[建筑科学—建筑技术科学]