高性能混凝土干燥收缩规律研究

Rule of drying shrinkage about the high performance concrete

收缩是非荷载作用下引起混凝土裂缝最常见的因素。水泥混凝土收缩是因内部水分迁移和水化消耗水分,其收缩率与水分损失率不是直接线性关系。对高性能混凝土的试验方法、配合比及其收缩特性进行研究,并提出了收缩模型。

Under the contraction right and wrong load function causes the concretes crack most common factor.The cement concrete contraction is because of the interior water migration and the hydrated consumption moisture content,its shrinkage is direct and the moisture content loss factor is not the linear relationship.To the high performance concretes＇ testing method,the mixture ratio and the shrinkage character conduct the research, and proposed the contraction model.