(六)硬化混凝土的流变特性1.松弛、徐变与粘弹性一般粘弹性的聚集体,就其内部结构分析,都可以看作是由高弹性或弹性骨架与填充于空隙中的低弹性或粘性体共同组成的。表现得最显著的材料是土壤、沥青、木材和硬化后的水泥混凝土。对于这些材料来说,它们的应力-应变随时间发展的规律,也就 (VI) Rheological properties of hardened concrete 1. The generalized viscoelastic aggregates of relaxation, creep, and viscoelasticity can be regarded as high elasticity or elastic skeletons and low elasticity filled in voids in terms of their internal structural analysis. Or sticky body made up together. The most significant materials are soil, asphalt, wood, and cemented concrete. For these materials, their stress-strain evolution over time,