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混凝土与制品
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外加剂对混凝土孔隙特征影响的分形评价

作者:郭伟1,2,崔东霞2,秦鸿根2,水中和1,黄赟1

关键字:外加剂,对,混凝土,孔隙,特征,影,响的,分形,

 
(1.珠海春禾新材料研究院有限公司,广东 珠海  519000;
2.东南大学,江苏省土木工程材料重点实验室,江苏 南京  211189)
摘要:混凝土在其形成和服役过程中表现出了一系列分形的特征,介绍了混凝土孔隙的测试方法、混凝土孔隙的分形维数的计算方法、用压汞法测试了6组混凝土的孔结构数据,且计算了其孔隙分形维数,并结合SEM微观分析对外加剂对混凝土孔隙特征的影响进行了评价。
关键词:混凝土;外加剂;孔隙;分形特征;分形维数;微观分析
中图分类号:TU528.01        文献标识码:A        文章编号:1001-702X(2019)01-0033-04
 
Evaluation of the effect of admixture on concrete porosity characteristics with fractal theory
GUO Wei1,2,CUI Dongxia2,QIN Honggen2,SHUI Zhonghe1,HUANG Yun1
(1.Zhuhai Chunhe New Material Research Institute Co. Ltd.,Zhuhai 519000,China;
2.Jiangsu Province Key Laboratory of Construction Material,Southeast University,Nanjing 211189,China)
Abstract:Concrete demonstrated a series of fractal characteristics in the process of its formation and work. This paper mainly introduced the testing methods of concrete porosity,the calculation method of concrete pore fractal dimension,used the pressure mercury method tested the pore structure data of six groups concrete,calculated their porosity fractal dimension,and combined with SEM micro-analysis the effect of admixture on concrete porosity characteristics was evaluated.
Key words:concrete,admixture,porosity,fractal characteristics,fractal dimension,micro-analysis