| 新型掺合料对水工混凝土性能的影响 |
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| 引用本文： | 刘数华,曾力.新型掺合料对水工混凝土性能的影响[J].水力发电学报,2011,30(2):118-122. |
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| 作者姓名： | 刘数华 曾力 |
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| 作者单位： | 武汉大学水资源与水电工程科学国家重点实验室,武汉,430072 |
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| 基金项目： | 高等学校博士学科点专项科研基金(200804861060); 中建股份科技研发课题(CSCEC-2009-Z-19) |
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| 摘 要： | 作为新型的矿物掺合料,磷矿渣和石灰石粉在水工混凝土中的研究应用急须开展.通过对比磷矿渣、石灰石粉与粉煤灰对混凝土各项性能的影响,分析两种掺合料在混凝土中的影响效果.研究结果表明,与粉煤灰相比,磷矿渣具有更高的水化活性,掺入混凝土后,能够加速混凝土的凝结硬化,提高混凝土的强度、弹性模量、极限拉伸值和抗冻耐久性等性能;石灰...
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| 关 键 词： | 水工材料 性能 试验研究 掺合料 作用机理 |
Influence of new admixtures on the properties of hydraulic concrete |
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| LIU Shuhua
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ZENG Li.Influence of new admixtures on the properties of hydraulic concrete[J].Journal of Hydroelectric Engineering,2011,30(2):118-122. |
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| Authors: | LIU Shuhua ZENG Li |
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| Affiliation: | LIU Shuhua,ZENG Li(State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072) |
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| Abstract: | Phosphorus slag and limestone powder are two new mineral admixtures;their application to hydraulic concrete needs be studied urgently.In this work,the influence of these two admixtures and fly ash on the properties of concrete is studied.In comparison with fly ash,phosphorus slag has higher hydration activity and it speeds up the hydration and hardening of concrete so that the strength,elastic modulus,ultimate tensile value and frost durability of concrete are improved.Limestone powder has filling effect,ac... |
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| Keywords: | hydraulic materials properties testing research admixtures mechanism |
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