| 高掺量粉煤灰碾压混凝土路用力学性能的研究 |
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| 引用本文： | 曹诚,孙伟,秦鸿根.高掺量粉煤灰碾压混凝土路用力学性能的研究[J].中国公路学报,2000,13(1):1-5. |
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| 作者姓名： | 曹诚 孙伟 秦鸿根 |
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| 作者单位： | 1. 天津市市政工程研究院,天津,300074
2. 东南大学 |
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| 摘 要： | 通过对高掺量粉煤灰碾压混凝土的力学性能的测试和对其中粉煤灰掺量的影响及提高水泥标号对粉煤灰激发效果的机理分析,得出以下结论;高掺量粉煤灰碾压混凝土的早期强度随粉煤灰掺量的提高呈下降趋势,但随龄期增长幅增大;提高粉煤灰掺量有利于降低碾压混凝土的脆性;提高水泥标号对高掺量粉煤灰碾压混凝土的早期强度有利,但降低了抗折强度的后期增幅。
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| 关 键 词： | 粉煤灰 高掺量 碾压混凝土 强度 路面 力学性能 |
| 修稿时间： | 1999-01-11 |
An study of mechanical properties of roller compacted concrete with high volume fly ash |
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| CAO Cheng,SUN Wei,QIN Hong-gen.An study of mechanical properties of roller compacted concrete with high volume fly ash[J].China Journal of Highway and Transport,2000,13(1):1-5. |
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| Authors: | CAO Cheng SUN Wei QIN Hong-gen |
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| Abstract: | By testing the mechanical properties of
RCC, and analyzing the influence of fly ash volume and the mechanism of cement
activating-effect on fly ash, following conclusions are given in the paper. Early age
strength of RCC with high volume fly ash decreases with the increment of fly ash volume,
but it increases by a big margin with the curing age. Increasing the fly ash volume in RCC
is beneficial to decreasing its brittleness. Raising the cement index does good to the
early age strength of RCC with high volume fly ash, but it is unfavourable to later period
increasing-extent of flexural strength. |
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