| 负温防冻剂粉煤灰混凝土的强度及抗冻性试验研究 |
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| 引用本文： | 姚利君,邓红卫,巴恒静.负温防冻剂粉煤灰混凝土的强度及抗冻性试验研究[J].低温建筑技术,2001(3):8-10. |
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| 作者姓名： | 姚利君 邓红卫 巴恒静 |
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| 作者单位： | 1. 上海市建筑科学研究院
2. 哈尔滨工业大学 |
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| 基金项目： | 国家自然科学基金，50078019， |
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| 摘 要： | 研究了等量取代法及超量取代法配制的三种粉煤灰掺量 (10 %、15 %、15 %k =1 5 )的防冻剂混凝土在变负温和恒负温养护下的抗压强度发展规律及抗冻性 ,表明双掺粉煤灰和高效防冻剂可以使负温混凝土具有良好的强度发展和更加优异的耐久性 ,完全满足混凝土冬季施工。变负温养护的混凝土强度发展及耐久性均优于恒负温养护的混凝土。
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| 关 键 词： | 粉煤灰 防冻剂 负温混凝土 强度 耐久性 |
| 文章编号： | 1001-6864(2001)03-0008-03 |
RESEARCH ON THE STRENGTH AND FROST-RESISFANCE OF MINUS-TEMPERATURE FLY-ASH CONCRETE |
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| YAO Lijun,DENG Hongwei,BA Hengjing.RESEARCH ON THE STRENGTH AND FROST-RESISFANCE OF MINUS-TEMPERATURE FLY-ASH CONCRETE[J].Low Temperature Architecture Technology,2001(3):8-10. |
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| Authors: | YAO Lijun DENG Hongwei BA Hengjing |
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| Affiliation: | YAO Lijun 1 DENG Hongwei 2 BA Hengjing 2 |
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| Abstract: | In this paper,the strength development and the frost-resistance of the concretes with antifreezing admixfure and three dosages(10%,15%,15%k=1 5) of fly-ash cured in varied minus-temperature and constant minustemperature were studied.It showed that mixing fly-ash and antifreezing admixture can lead to good strength development and durability of the minus-temperature concrete.The strength development and durability of the concrete cured in varied minus temperature are better than those of the concrete cured in constant minus temperature. |
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| Keywords: | Fly-ash Antifreezing admixture Minus-temperature concrete Strength Durability |
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