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| 自密实混凝土抗冻性能研究 | |
| 引用本文： | 陈春珍,张金喜,徐金良,王小兵.自密实混凝土抗冻性能研究[J].建筑技术,2011,42(5):443-445. |
| 作者姓名： | 陈春珍 张金喜 徐金良 王小兵 |
| 作者单位： | 1. 厦门中平公路勘察设计院有限公司,361008,福建厦门;厦门中平工程监理咨询有限公司,361008,福建厦门 2. 北京工业大学道路与铁道工程学科,100124,北京 3. 厦门中平公路勘察设计院有限公司,361008,福建厦门 |
| 摘 要： | 通过宏观和微观两方面研究C60自密实混凝土抗冻性。宏观研究表明C60自密实混凝土不能经受300次快速冻融循环，需掺入引气剂以保证其抗冻耐久性，自密实混凝土抗冻性能与高强混凝土类似，冻融破坏的主要因素是在冻融过程中温度变化而产生的疲劳应力所造成。微观研究表明C60自密实混凝土的相对耐久性指数与混凝土含气量、气泡间隔系数及微观孔径分布存在一定关系。 |
| 关 键 词： | 自密实混凝土 抗冻性 宏观研究 微观研究 |
STUDY ON FROST-RESISTANCE OF SELF-COMPACTING CONCRETE |
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| CHEN Chun-zhen,ZHANG Jin-xi,XU Jin-liang,WANG Xiao-bing.STUDY ON FROST-RESISTANCE OF SELF-COMPACTING CONCRETE[J].Architecture Technology,2011,42(5):443-445. | |
| Authors: | CHEN Chun-zhen ZHANG Jin-xi XU Jin-liang WANG Xiao-bing |
| Affiliation: | 1. Road and Railway Engineering, Beijing University of Technology, 100124, Beijing, China; 2. Xiamen Zhongping Highway Survey and Design Co., Ltd., 361008, Xiamen, Fujian, China; 3. Xiamen Zhongping Engineering Supervision Consulting Co., Ltd., 361008,Xiamen,Fujian, China) |
| Abstract: | Frost-resistance of self-compacting concrete of C60 has been studied from both of macro and micro respects. The macro-study results indicate that the frost-resistance of self-compacting concrete of C60 does not reach 300 cycles of freezing and thawing, it can be mixed with air entraining agent to ensure its frost-resistance. Frost-resistance of self-compacting concrete is similar to high strength concrete with freezethaw damage, which a major factor is the fatigue stress on temperature changes The micro-study results indicate that concrete air content, bubble spacing factor; had a relationship with the durability index of self-compacting concrete of C60. during freezing and thawing. micro-pore size distribution |
| Keywords: | self-compacting concrete frost-resistance macro-study micro-study |
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