摘要: |
基于混凝土表面渗透层HB研究具有的重要意义,在建立单位横断层S与单位横断层性能参数cHS及其分布的表征方法基础上,对渗透层表层HB1x的值域进行了量化,指出了Z3(=(2.5±0.5)mm)断层的特征和表层影响混凝土渗透性的主要因素;将HB划分为HB,Ⅰarea和HB,Ⅱarea两个层区,建立了氯离子质量分数分布模型通式,并阐明其参数的物理意义与应用;分层取样断距量级宜为亚毫米级,运用S与cHS的表征方法分析归纳同类试验研究结果,量化混凝土与层有关的参数,给出了与层有关的结构层次量化模型.结果表明:S和cHS的表征方法具有普适性. |
关键词: 混凝土 表面渗透层 单位横断层表征方法 亚毫米级 氯离子分布模型 |
DOI:10.3969/j.issn.1007 9629.2013.04.005 |
分类号: |
基金项目: |
|
General Formula of Chloride Distribution Model withinPermeable Layer of Concrete Surface |
HUANG Zhi shan, LIU Lei
|
School of Civil Engineering, Harbin Institute of Technology, Harbin 150006, China
|
Abstract: |
Based on the characterization methods of unit cross sectional layer S and its performance cHS,the range of HB1xhas been evaluated. The feature of fault Z3(=(2.5±0.5)mm) and the main factors that affect the permeability of concrete in surface layer have been provided. The HB could be divided into two layers, HB,Ⅰareaand HB,Ⅱarea. The distribution model formula of chloride has been established, its physical meaning and application have also been clarified. The results showed that the magnitude of stratified sampling is appropriate at the sub millimeter level. A quantitative model for concrete structure related to the layer hierarchy is given. The characterization methods of S and cHS are universal. |
Key words: concrete surface permeable layer characterization method of unit cross sectional layer sub millimeter level distribution model of chloride |