| 水灰比对外掺氧化镁的介质压蒸膨胀率的影响 |
| |
| 引用本文： | 李维维,陈昌礼,方坤河,刘小萤,赵振华.水灰比对外掺氧化镁的介质压蒸膨胀率的影响[J].混凝土,2012(4):55-57. |
| |
| 作者姓名： | 李维维 陈昌礼 方坤河 刘小萤 赵振华 |
| |
| 作者单位： | 贵州师范大学材料与建筑工程学院;武汉大学水资源与水电工程科学国家重点实验室 |
| |
| 基金项目： | 国家自然科学基金项目(50969002) |
| |
| 摘 要： | 为了探索混凝土中外掺氧化镁安定掺量的新方法,开展了水灰比对外掺氧化镁的介质(水泥净浆、砂浆、一级配混凝土、二级配混凝土)压蒸膨胀率影响的试验研究。结果表明:水灰比对外掺氧化镁的介质压蒸膨胀率有重要影响;试体的压蒸膨胀率随着水灰比的增大而减小;压蒸膨胀率随着水泥净浆、一级配混凝土、水泥砂浆、二级配混凝土的顺序依次递减。
|
| 关 键 词： | 水工混凝土 压蒸膨胀率 压蒸试验 水灰比 |
Influence of water cement ratio on pressure-braise expansion rate of medium with magnesium oxide |
| |
| LI Wei-wei,CHEN Chang-li,FANG Kun-he,LIU Xiao-ying,ZHAO Zhen-hua.Influence of water cement ratio on pressure-braise expansion rate of medium with magnesium oxide[J].Concrete,2012(4):55-57. |
| |
| Authors: | LI Wei-wei CHEN Chang-li FANG Kun-he LIU Xiao-ying ZHAO Zhen-hua |
| |
| Affiliation: | 1(1.School of Materials and Architectural Engineering,Guizhou Normal University,Guiyang 550059,China; 2.State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China) |
| |
| Abstract: | For searching the new approach on balanced content of magnesium oxide in concrete,the influence of water cement ratio on pressure-braise expansion rate of medium(cement paste,mortar,one grading and two grading concrete) with magnesium oxide is tested.The results show that the influence of water cement ratio on pressure-braise expansion rate of medium with magnesium oxide is very important.The pressure-braise expansion rate is reduced with water cement ratio increasing.The pressure-braise expansion rate is increasingly decreasing with order of cement paste,one grading,mortar,two grading concrete. |
| |
| Keywords: | hydraulic mass concrete pressure-braise expansion rate pressure-braise test water cement ratio |
| 本文献已被 CNKI 等数据库收录！ |
|
