| 煤矸石混凝土耐久性的试验研究 |
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| 引用本文： | 郭金敏. 煤矸石混凝土耐久性的试验研究[J]. 混凝土, 2011, 0(7): 56-58. DOI: 10.3969/j.issn.1002-3550.2011.07.019 |
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| 作者姓名： | 郭金敏 |
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| 作者单位： | 河南城建学院,交通工程系,河南,平顶山,467044 |
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| 摘 要： | 以煤矸石替代部分碎石、粉煤灰和矿渣替代部分水泥配制煤矸石混凝土,采用正交试验对其进行了耐久性的研究,分析了经硫酸盐侵蚀后抗压强度损失值、渗透系数及其冻融后弹性模量损失值3个指标,试验表明,粉煤灰的影响因素要大于矿渣的影响因素.通过极差分析法与功效系数法得出了煤矸石混凝土耐久性的优方案是相同的,即煤矸石混凝土的耐久性优方...
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| 关 键 词： | 正交设计 耐久性 煤矸石混凝土 抗压强度损失值 弹性模量损失值 渗透系数 |
Experimental research on durabilities of coal gangue concrete |
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| GUO Jin-min. Experimental research on durabilities of coal gangue concrete[J]. Concrete, 2011, 0(7): 56-58. DOI: 10.3969/j.issn.1002-3550.2011.07.019 |
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| Authors: | GUO Jin-min |
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| Affiliation: | GUO Jin-min(Department of Transportation Engineering of Henan University of Urban Construction,Pingdingshan 467044,China) |
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| Abstract: | Made concrete with coal gangue instead of some aggregate,fly ash and slag instead of some cement basing on main properties of coal gangue from No.1 mine of Pingdingshan Tian'an coal group.Durabilities of coal gangue concrete were studied by the method of orthogonal experiment.Loss of compression strength after corrosion by sulphate,osmotic coefficient and loss of modulus elasticity after freeze-thaw were analysed.According to the experiment,influence of fly on coal gangue concrete was higher than that of sl... |
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| Keywords: | orthogonal design durability coal gangue concrete loss of compression strength loss of modulus elasticity osmotic coefficient |
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