高寒环境下掺外加剂水泥混凝土抗冻融性能研究  

Research on the freeze-thaw resistance performance of concrete with admixture is under high-cold conditions

作　　者：钱涛 岑国平[2] 张严[3] 汪晓辉 朱剑飞 

机构地区：[1]中国航空港建设总公司第三工程总队 [2]空军工程大学工程学院机场建筑工程系 [3]93601部队后勤科 [4]中国航空港建设总公司第二工程总队

出　　处：《混凝土》2011年第12期83-87,共5页Concrete

摘　　要：为揭示冻融作用下,外加剂对机场道面水泥混凝土力学性能的影响规律,结合某机场工程,对5种不同掺外加剂混凝土的力学性能进行了测试,分析了影响掺外加剂混凝土冻融破坏的因素。测定了单轴抗压强度及单轴抗拉强度、动弹模量、质量损伤、冻融循环前后的强度比等方面的试验数据,在分析试验资料的基础上,通过回归分析,建立了混凝土随冻融循环次数变化的强度折减模型和动弹模量折减模型。可对高寒地区机场水泥混凝土道面设计、维护及剩余寿命预测等问题提供参考。In order to open out the influencing law of additive admixture on cement concrete of airport pavement after different cycles of freeze-thaw, based on an airport project, the mechanical property of five kinds of concrete with admixture was tasted;the factors which influence the damage of concrete with admixture freezing and thawing were analyzed.The compressive strength and tensile strength, the dynamic modulus of elasticity and the weight loss of concrete with admixture were measured, based on the test data, through regression analysis, the strength reduction model and elastic modulus reduction model were built with the changes of freezing-thawing cycles of concrete.The testing results were discussed and the related regression formulas were established.Which is essential to design, maintenance and predict the remaining life of cement concrete of airport pavement.

关 键 词：高寒 外加剂 水泥混凝土 冻融 抗冻等级 动弹模量 质量损失 

分 类 号：TU528.042[建筑科学—建筑技术科学]