摘要
对经过0、25、50、75、100次冻融循环的普通混凝土,进行了实验研究:主要测定了单轴抗压强度及单轴抗拉强度、单轴压及单轴拉时的峰值应变、初始弹性模量与峰值变形模量、动弹性模量、质量损失及应力-应变关系等数据,并建立了简单的数学表达式。随后对试验结果进行了分析。可以为北方寒冷地区的水坝、港口水工建筑物、公路、桥梁等的设计、维修、维护及其寿命预测等提供试验及理论依据。
The experimental study of plain concrete specimens suffering 0, 25, 50 ,75 and 100 cycles of freezing and thawing were carried out. The compressive strength and tensile strength , the initial elastic modulus, the secant modulus at the peak of stress, the dynamic modulus of elasticity, the weight loss and the stress-strain curve of concrete were measured. The testing rezults were discussed and the related regression formulas were established.
出处
《混凝土与水泥制品》
2005年第2期9-11,共3页
China Concrete and Cement Products
基金
辽宁省教委科研基金项目(2023901023)
关键词
混凝土
冻融循环
力学性能
Concrete
Freezing and thawing cycle
Mechanical property