| 高性能喷射混凝土的耐久性研究 |
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| 引用本文： | 樊文熙,张长海,郑永保.高性能喷射混凝土的耐久性研究[J].煤炭学报,2000,25(4):366-368. |
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| 作者姓名： | 樊文熙 张长海 郑永保 |
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| 作者单位： | 1. 焦作工学院,新型建材研究所,河南,焦作,454000
2. 焦作矿务局,河南,焦作,454002 |
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| 基金项目： | 煤炭科学基金资助项目!( 97建 10 80 5 ) |
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| 摘 要： | 本项研究采用了高活性细掺抖的水泥裹砂、水泥裹石工艺，喷射混凝土的耐久性大大提高，抗渗标号达到０．８ＭＰａ，碳化系数为０．８８，腐蚀系数为０．７８，干缩率降低１６．６％，长期强度（３６０ｄ）达到４０．７ＭＰａ，对耐久性提高的原因进行了分析。
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| 关 键 词： | 喷射混凝土 抗渗性 抗碳化性 抗腐蚀性 耐久性 |
| 修稿时间： | 2000-01-24 |
Endurance research on high-property sprayed concrete |
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| FAN Wen-xi,ZHANG Chang-hai,ZHENG Yong-bao.Endurance research on high-property sprayed concrete[J].Journal of China Coal Society,2000,25(4):366-368. |
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| Authors: | FAN Wen-xi ZHANG Chang-hai ZHENG Yong-bao |
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| Abstract: | The researchers have used high activity small admixture, and adopted some special technology in which cement is wrapped up by sand and stones, so that endurance of sprayed concrete is increased greatly. Gauge number of leakage resistance reaches 0 8 MPa. The coefficient of carbonization is 0 88, while coefficient of erosion attains 0 78. Drying shrinkage decreases by 16 6%, however, long term strength (360 days) reaches 40 7 MPa. The reasons of increasing endurance are also analyzed. |
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| Keywords: | sprayed concrete permeability resistance carbonization resistance erosion resistance dry shrinkage resistance long term strength |
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