| 免振捣多孔混凝土配合比设计方法 |
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| 引用本文： | 盛燕萍,陈拴发,郑木莲,张登良.免振捣多孔混凝土配合比设计方法[J].交通运输工程学报,2009,9(1). |
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| 作者姓名： | 盛燕萍 陈拴发 郑木莲 张登良 |
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| 作者单位： | 长安大学,特殊地区公路工程教育部重点实验室,陕西,西安,710064
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| 基金项目： | 国家西部交通建设科技项目，国家科技支撑计划重点项目 |
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| 摘 要： | 为保证多孔混凝土排水基层的平整度,通过体积法对免振捣多孔混凝土排水基层进行了配合比设计,计算得到各配合比参数、稀释系数、合理的水灰比及用水量,提出了免振捣多孔混凝土工作性评价方法--富余浆量法和评价指标--富余浆量比,通过正交试验设计,得到了富余浆量比的回归关系式、7 d抗压强度和有效空隙率之间的相关关系式,最后提出了基于经验公式的免振捣多孔混凝土配合比设计方法.性能试验表明:该方法设计的混合料7 d抗压强度在3～5 MPa(重交通)和5～8 MPa(特重交通)之间,空隙率在20%～30%之间,均达到设计标准,因此,该设计方法可行.
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| 关 键 词： | 路面材料 免振捣多孔混凝土 工作性 空隙率 配合比设计 |
Mix design method of porous concrete with non-vibration molding |
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| SHENG Yan-ping,CHEN Shuan-fa,ZHENG Mu-lian,ZHANG Deng-liang.Mix design method of porous concrete with non-vibration molding[J].Journal of Traffic and Transportation Engineering,2009,9(1). |
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| Authors: | SHENG Yan-ping CHEN Shuan-fa ZHENG Mu-lian ZHANG Deng-liang |
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| Institution: | Key Laboratory for Special Area Highway Engineering of Ministry of Education;Chang'an University;Xi'an 710064;Shaanxi;China |
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| Abstract: | In order to ensure the smoothness of porous permeable concrete base,volume method was used for the mix design of non-vibration porous permeable concrete base,mix proportion parameters,dilution coefficience,reasonable water cement ratio and water consumption were calculated,the evaluating method and index for the workability of non-vibration porous permeable concrete base were given,such as margin cement mortars method and margin cement mortars ratio. Through orthogonality design,the regression equation of m... |
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| Keywords: | pavement material porous concrete with non-vibration molding workability porosity mix design |
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