| 复合混凝土最优配合比设计及其抗冻性能研究 |
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| 引用本文： | 杜天玲,孙庆合,牛宇涛.复合混凝土最优配合比设计及其抗冻性能研究[J].宁夏工程技术,2007,6(4):385-388. |
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| 作者姓名： | 杜天玲 孙庆合 牛宇涛 |
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| 作者单位： | 1. 交通部公路科学研究院,北京,100088
2. 宁夏大学,土木与水利工程学院,宁夏,银川,750021 |
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| 摘 要： | 为了探讨在混凝土中掺入钢渣、粉煤灰、矿渣等材料对混凝土冻融破坏的作用机理,采用宁夏地区工业废料作为混凝土的掺合料,通过正交试验及混凝土抗冻性能试验,确定出了混凝土最优配合比为A1B2C3D3E3.由宏观和微观试验结果表明:优化钢渣、粉煤灰、矿渣掺量后制备的复合混凝土强度增长显著;经100次的冻融试验,抗冻效果比基准混凝土显著.
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| 关 键 词： | 混凝土 钢渣 粉煤灰 矿渣 复合 强度 抗冻性 |
| 文章编号： | 1671-7244（2007）04-0385-04 |
| 收稿时间： | 2007-09-03 |
| 修稿时间： | 2007年9月3日 |
A study on optimum mixture ratio design and frost resistance of compound concrete |
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| DU Tian-ling,SUN Qing-he,NIU Yu-tao.A study on optimum mixture ratio design and frost resistance of compound concrete[J].Ningxia Engineering Technology,2007,6(4):385-388. |
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| Authors: | DU Tian-ling SUN Qing-he NIU Yu-tao |
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| Abstract: | In this paper,making use of waste materials(fly-ash,slag,steel dregs) of industry in Ninxia,the frost-resistance performance of compound concrete was studied by means of orthogonal experimental design.Through variance analysis,the theoretical optimum project of concrete proportion had been determined: A1B2C3D3E3.Results of research by macrostructures and microstructures showed that strength of concrete with steel slag,and fly-ash contents of optimization has increased in evidence.By testing of 100 times freezing-thawing experiments,the frost-resistant capability of compound concrete is better than that of common concrete. |
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| Keywords: | concrete steel scoria fly ash slag compound strength frost-resistance |
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