| 一种超高耐久混凝土——梯度结构混凝土 |
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| 引用本文： | 王信刚,王睿,宋固全.一种超高耐久混凝土——梯度结构混凝土[J].南昌大学学报(理科版),2009,33(1). |
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| 作者姓名： | 王信刚 王睿 宋固全 |
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| 作者单位： | 1. 南昌大学,建筑工程学院,江西,南昌,330013
2. 南昌大学,艺术与设计学院,江西,南昌,330031 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，江西省教育厅青年科学基金 |
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| 摘 要： | 分析超高耐久混凝土的研究现状,提出了一种高耐久、低成本的超高耐久混凝土--梯度结构混凝土(Gradient Structural Concrete,简称GSC),采用电量法和氯离子扩散系数法来评价梯度结构混凝土的抗氯离子渗透性能,最后进行梯度结构混凝土的寿命预测与成本分析.结果表明,高性能混凝土(High Performance Concrete,简称HPC)、无细观界面过渡区水泥基复合材料(Meso-interfacial transition zone-free cement-based materials,简称 MIF)和梯度结构混凝土MIF-HPC的6 h导电量和氯离子扩散系数的排列顺序均为:HPC>MIF-HPC>MIF,其抗氯离子渗透性能排列顺序为:MIF>MIF-HPC>HPC.梯度结构混凝土的成本会有所增加,但由于其氯离子渗透性能大幅降低,其使用寿命得到大幅延长,使得其年损耗费用大幅下降.
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| 关 键 词： | 超高耐久混凝土 梯度 抗氯离子渗透 寿命预测 成本 |
A Kind of Ultra High Durability Concrete——Gradient Structural Concrete |
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| WANG Xin-gang,WANG Rui,SONG Gu-quan.A Kind of Ultra High Durability Concrete——Gradient Structural Concrete[J].Journal of Nanchang University(Natural Science),2009,33(1). |
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| Authors: | WANG Xin-gang WANG Rui SONG Gu-quan |
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| Institution: | a.School of Civil Engineering and Architecture;b.Arts and Design College;Nanchang University;Nanchang 330031;China |
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| Abstract: | Study situation of Ultra High Durability Concrete(abbr.UHDC) was analyzed.A kind of UHDC named Gradient Structural Concrete(abbr.GSC) with high durability and low cost was put forward.Chloride ion penetration resistance of GSC was investigated by means of coulomb test method and chloride diffusion coefficient test method.Service life prediction and cost analysis of GSC were presented.The results show that the order of conductive charge for 6 hours and chloride diffusion coefficient of high performance concr... |
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| Keywords: | ultra high durability concrete gradient chloride ion penetration resistance service life predicton cost |
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