| 应用纳米微粉提高混凝土抗渗抗冻性能的试验研究 |
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| 引用本文： | 杜应吉,韩苏建,姚汝方. 应用纳米微粉提高混凝土抗渗抗冻性能的试验研究[J]. 西北农林科技大学学报(自然科学版), 2004, 32(7): 107-110 |
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| 作者姓名： | 杜应吉 韩苏建 姚汝方 |
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| 作者单位： | 1. 西北农林科技大学,水利与建筑工程学院,陕西,杨凌,712100;河海大学,土木学院,江苏,南京,210024
2. 西北农林科技大学,水利与建筑工程学院,陕西,杨凌,712100 |
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| 基金项目： | 国家863计划项目(2002AA2Z4131,2001AA242071) |
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| 摘 要： | 利用纳米微粉的高化学活性和微粒性,通过混凝土耐久性试验研究,研制新型混凝土改性剂。结果表明,当纳米微粉的掺量为1g～3g/kg时,其施工成本与市售外加剂相当,这时混凝土的抗渗等级提高30%,抗冻等级提高50%。
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| 关 键 词： | 纳米微粉 改性剂 混凝土 抗渗性 抗冻性 |
| 文章编号： | 1671-9387(2004)07-0107-04 |
| 收稿时间： | 2003-10-15 |
| 修稿时间： | 2003-10-15 |
Experimental study on improving permeability resistant and frost-resistant properties of concrete with nm level micro-powder |
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| DU Ying-ji. Experimental study on improving permeability resistant and frost-resistant properties of concrete with nm level micro-powder[J]. Journal of Northwest A&F University（Natural Science Edition）, 2004, 32(7): 107-110 |
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| Authors: | DU Ying-ji |
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| Affiliation: | DU Ying-ji~ |
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| Abstract: | The new property-improved concrete admixture is studied through the experiment on durable properties of concrete utilizing high chemical active property and micro-particle property of nm level micro-powder.The results show that the cost of concrete with a mixing amount of micro-powder between 1 g/kg and 3 g/kg is basically the same as that of concrete with ordinary admixtures and its permeability-resistant level increases by 30% and frost-resistant level by 50%. |
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| Keywords: | nm level micro-powder property-improved admixture concrete permeability-resistant property frost-resistant property |
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