混凝土冷缩-干缩应力试验机  

A New Type Concrete Cooling-drying Stress Testing Machine

作　　者：李长成[1] 贾福杰[1] 高玉梅 赵顺增[1] 刘立[1] 

机构地区：[1]中国建筑材料科学研究总院,北京100024 [2]北京首发公路养护工程有限公司,102613

出　　处：《混凝土与水泥制品》2018年第2期82-85,共4页China Concrete and Cement Products

基　　金：国家重点研发计划资助项目(2017YFB0310000)

摘　　要：介绍了一种混凝土冷缩-干缩应力试验机,与价格昂贵的混凝土温度应力试验机相比,构造简单,操作方便。该试验机可以模拟实际工程中混凝土经历的真实温升、降温和干燥过程,全程准确测量混凝土的冷缩应力、干缩应力和干缩变形,直接给出干缩应力-应变曲线。Cooling-drying shrinkage are the main form of concrete cracking in practice. A new type concrete cooling -drying stress testing machine （CDSTM） is introduced. Compared with expensive concrete temperature stress testing machine, CDSTM is more simple in construction and easy to operate. CDSTM can simulate the real temperature history and drying shrinkage process of concrete in actual engineering, including temperature rising and temperature cooling. Thus, the whole process of cooling stress, shrinkage stress, and shrinkage deformation of concrete will be accurately determined. And the stress-strain curve can be immediately obtained. CDSTM provides a convenient measuring means for nreventin~ concrete erackin~ in engineering.

关 键 词：混凝土 冷缩应力 干缩应力 干缩变形 温度历程 

分 类 号：TU528.01[建筑科学—建筑技术科学]