| 天然浮石混凝土孔溶液结冰规律的研究 |
| |
| 引用本文： | 王萧萧,申向东,王海龙,杜聪. 天然浮石混凝土孔溶液结冰规律的研究[J]. 材料导报, 2017, 31(6): 130-135. DOI: 10.11896/j.issn.1005-023X.2017.06.026 |
| |
| 作者姓名： | 王萧萧 申向东 王海龙 杜聪 |
| |
| 作者单位： | 1. 内蒙古工业大学土木工程学院,呼和浩特,010051;2. 内蒙古农业大学水利与土木建筑工程学院,呼和浩特,010018 |
| |
| 基金项目： | 国家自然科学基金(51609119;51569021;51369023;51669026);内蒙古自治区自然科学基金(2015MS0564;2016BS0503);教育部创新团队发展计划(IRT13069);内蒙古工业大学科学研究项目(ZD201609) |
| |
| 摘 要： | 以内蒙古天然浮石作为粗骨料,通过冻融核磁共振技术模拟冻融循环温度变化过程,并测得天然浮石混凝土在冷冻和融化过程中孔溶液信号量、结冰速率、T2谱和孔径分布的变化规律,结果表明:用冷冻过程中的含冰量来评价孔溶液结冰引起的静水压比较符合实际情况;天然浮石混凝土发生冻害的温度主要是-15℃以上。探讨了天然浮石混凝土孔溶液的结冰规律。
|
| 关 键 词： | 天然浮石混凝土 冻融核磁共振 孔隙结冰规律 |
Research on Icing Law of Pore Solution in Natural Pumice Concrete |
| |
| WANG Xiaoxiao,SHEN Xiangdong,WANG Hailong and DU Cong. Research on Icing Law of Pore Solution in Natural Pumice Concrete[J]. Materials Review, 2017, 31(6): 130-135. DOI: 10.11896/j.issn.1005-023X.2017.06.026 |
| |
| Authors: | WANG Xiaoxiao SHEN Xiangdong WANG Hailong DU Cong |
| |
| Affiliation: | College of Civil Engineering, Inner Mongolia University of Technology, Hohhot 010051,College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018,College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018 and College of Civil Engineering, Inner Mongolia University of Technology, Hohhot 010051 |
| |
| Abstract: | The freezing and thawing temperature cycle of coarse aggregate, which was made from the natural pumice in Inner Mongolia, was simulated by freezing-thawing nuclear magnetic resonance technology. During the freezing and thawing process, the various discipline of pore solution semaphore, frozen rate, T2 spectrum and pore size distribution were obtained. The results showed that it was reasonable to evaluate the hydrostatic pressure of pore solution with the amount of ice in freezing process. The most se-rious damage of natural pumice concrete occurred at minus 15 centigrade. Other freezing behaviors of the natural pumice concrete solution were also obtained. |
| |
| Keywords: | natural pumice concrete freezing-thawing nuclear magnetic resonance pore icing law |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《材料导报》浏览原始摘要信息 |
|
点击此处可从《材料导报》下载全文 |
|
