|
|||||
|
|
| 碱矿渣水泥砂浆的干缩特性 | |
| 引用本文： | 陈科,杨长辉,潘群,赵爽,于泽东. 碱矿渣水泥砂浆的干缩特性[J]. 重庆大学学报(自然科学版), 2012, 35(5): 64-68 |
| 作者姓名： | 陈科 杨长辉 潘群 赵爽 于泽东 |
| 作者单位： | 重庆大学 材料科学与工程学院,重庆 400045;重庆大学 材料科学与工程学院,重庆 400045;重庆大学 材料科学与工程学院,重庆 400045;重庆大学 材料科学与工程学院,重庆 400045;重庆大学 材料科学与工程学院,重庆 400045 |
| 基金项目： | 国际科技合作项目(2009DFR50450);中央高校基本科研业务费资助项目(CDJZR12130041) |
| 摘 要： | 从收缩可逆性的角度,通过测试标准干燥养护后再水养护的砂浆试件收缩值的变化情况,对碱矿渣水泥砂浆的干缩特性进行了系统的研究。结果表明：碱矿渣水泥砂浆的干缩明显大于同条件下普通水泥砂浆的干缩,水玻璃矿渣水泥砂浆、NaOH 矿渣水泥砂浆14 d干缩值分别为普通水泥砂浆的5.5倍和2.2倍；碱矿渣水泥砂浆干缩中绝大部分是不可逆的,标准干燥养护14d再水养护的水玻璃矿渣水泥砂浆、NaOH〖KG-*6〗矿渣水泥砂浆不可逆收缩分别占总干缩的86%和68%。 |
| 关 键 词： | 碱矿渣水泥砂浆 干缩 不可逆收缩 养护时间 |
Drying shrinkage characteristics of alkali slag cement mortar |
|
| CHEN Ke,YANG Chang hui,PAN Qun,ZHAO Shuang and YU Ze dong. Drying shrinkage characteristics of alkali slag cement mortar[J]. Journal of Chongqing University(Natural Science Edition), 2012, 35(5): 64-68 | |
| Authors: | CHEN Ke YANG Chang hui PAN Qun ZHAO Shuang YU Ze dong |
| Affiliation: | College of Materials Science and Engineering, Chongqing University, Chongqing 400045, P.R. China;College of Materials Science and Engineering, Chongqing University, Chongqing 400045, P.R. China;College of Materials Science and Engineering, Chongqing University, Chongqing 400045, P.R. China;College of Materials Science and Engineering, Chongqing University, Chongqing 400045, P.R. China;College of Materials Science and Engineering, Chongqing University, Chongqing 400045, P.R. China |
| Abstract: | The drying shrinkage characteristics of alkali slag cement mortar from the view of irreversibility are studied. It is found that the shrinkage of alkali slag cement mortar water curing after drying is significantly greater than that of OPC mortar which is cured under the same conditions. The drying shrinkage (14 d) of alkali slag cement mortar activated with NaOH solution and water glass is respectively 5.5 and 2.2 times of those of OPC mortar. Moreover, the majority of drying shrinkage of alkali slag cement mortar is irreversible, and the proportion of this part is up to 86%(activated with water glass) and 68%(activated with NaOH solution). |
| Keywords: | |
| 点击此处可从《重庆大学学报(自然科学版)》浏览原始摘要信息 | |
| 点击此处可从《重庆大学学报(自然科学版)》下载全文 | |