| 多孔混凝土基层抗冻性研究 |
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| 引用本文： | 王永红,陶峰,饶红胜.多孔混凝土基层抗冻性研究[J].西部交通科技,2007(2):26-29. |
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| 作者姓名： | 王永红 陶峰 饶红胜 |
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| 作者单位： | 1. 湖北省咸宁市公路管理局,湖北,咸宁,437100
2. 山东省济宁市公路管理局,山东,济宁,272000 |
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| 摘 要： | 多孔混凝土作为新型的排水基层材料,抗冻性是其耐久性的重要体现,良好的抗冻性是多孔混凝土用于冰冻地区的前提。文章在分析现有普通混凝土抗冻性试验方法与评价指标的基础上,针对多孔混凝土自身的结构特点及工作状态,采用快冻法,使冻融循环次数分别为25次、50次、75次和100次进行4种级配多孔混凝土的抗冻性试验,并采用耐冻系数作为评价多孔混凝土抗冻性的指标,得到了有效的试验研究结果。
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| 关 键 词： | 道路工程 基层 多孔混凝土 抗冻性 快冻法 耐冻系数 |
| 文章编号： | 1673-4874(2007)01-0026-04 |
| 修稿时间： | 2007年3月10日 |
Study on the Freezing Resistance of Porous Concrete Base |
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| WANG Yong-hong,TAO Feng,RAO Hong-sheng.Study on the Freezing Resistance of Porous Concrete Base[J].Western China Communication Science & Technology,2007(2):26-29. |
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| Authors: | WANG Yong-hong TAO Feng RAO Hong-sheng |
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| Abstract: | Porous concrete is a new kind of base material for drainage. Its freezing resistance is an important factor of durability. High freezing resistance is a premise for porous concrete being used in freezing region. Based on the analysis of anti-freezing test and assessment indexes of common concrete,and considering the structure character and working status of porous concrete,the Paper adopts quick-freeze method so that the cycle of freezing and thawing shall be respectively 25 times,50 times,75 times and 100 times for the anti-freezing tests of 4 kinds of porous concrete. With the anti-freezing coefficient as the index to assess the freezing resistance of porous concrete,the effective test and study output has been obtained. |
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| Keywords: | Road engineering Base course Porous concrete Freezing resistance Anti-freezing coefficient |
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