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摘要: |
通过就矿渣、粉煤灰高性能混凝土单位气体渗透系数对碳化深度的贡献率的分析,研究了高性能混凝土气体渗透性与碳化性能之间的关系;在上述基础上,构建了评价高性能混凝土碳化性能的模型;通过检验,可知该模型有较好的准确性。 |
关键词: 高性能混凝土 气体渗透性 碳化性能 粉煤灰 |
DOI: |
分类号:TU528.31 |
基金项目:上海市重点学科建设项目,国家973重点基础研究发展规划项目(2001CB610705) |
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Assessment of Carbonation Resistance of HPC Based on Gas Permeability |
ZHOU Xiao-chen SHI Hui-sheng i China)
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Abstract: |
First, K _S and K _F are defined as the parameters which represent the influence of unit coefficient of gas permeability on carbonation depth of slag HPC and fly-ash HPC; The relationship between gas permeability and carbonation resistance of HPC was studied by analyzing these parameters; And then, a model for assessing the carbonation resistance of HPC was proposed based on the relationship; At last, the model was proved to be fairly accurate. |
Key words: high performance concrete,gas permeability,carbonation resistance |