| 不同温度履历与约束程度下混凝土抗裂性的研究 |
| |
| 引用本文： | 尹自立,孙铭,杨堃,叶珊,杨杨. 不同温度履历与约束程度下混凝土抗裂性的研究[J]. 新型建筑材料, 2012, 39(6): 41-44 |
| |
| 作者姓名： | 尹自立 孙铭 杨堃 叶珊 杨杨 |
| |
| 作者单位： | 浙江工业大学建筑工程学院,浙江杭州,310014 |
| |
| 摘 要： | 以水灰比0.4、坍落扩展度520 mm的混凝土为研究对象,采用温度应力试验机(TSTM)对不同温度履历(绝热温升养护、恒温养护)及不同的约束程度(100%、60%)条件下的混凝土早龄期的抗裂性进行试验研究。结果表明,同一温度履历下约束度越高的混凝土其抗裂性越差;相同约束度下绝热温升条件的混凝土比恒温养护条件的混凝土更易开裂。
|
| 关 键 词： | 混凝土 温度 应力 温度履历 约束度 抗裂性 |
Experimental study on cracking resistance of concrete under different temperature history and level of constraint |
| |
| YIN Zili , SUN Ming , YANG Kun , YE Shan , YANG Yang. Experimental study on cracking resistance of concrete under different temperature history and level of constraint[J]. New Building Materials, 2012, 39(6): 41-44 |
| |
| Authors: | YIN Zili SUN Ming YANG Kun YE Shan YANG Yang |
| |
| Affiliation: | (School of Architecture Engineering,Zhejiang University of Technology,Hangzhou 310014,Zhejiang,china) |
| |
| Abstract: | This paper focus on early age crack resistance of concrete used the temperature stress testing machine(TSTM) with water cement ratio of 0.4 and slump flow of 520 mm based on the experiment under different curing temperature history(curing of the adiabatic temperature rise,curing of the thermostatic) and different level of constraint(100%,60%).The results showed that the concrete cracking resistance deteriorate with the rising of the level of constraint through the same curing temperature history;the cracking resistance which curing of the adiabatic temperature rise is worse than that which curing of the thermostatic at the same level of constraint. |
| |
| Keywords: | concrete temperature stress temperature history level of constraint cracking resistance |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
