混凝土孔隙分形特征的研究  

Research on the Fractal Characteristics of the Concrete Proe

作　　者：唐明[1] 

机构地区：[1]沈阳建筑工程学院

出　　处：《混凝土》2000年第8期3-5,共3页Concrete

基　　金：国家自然科学基金资助项目!(No 59678053);辽宁省自然科学基金资助项目

摘　　要：用分形理论对混凝土孔隙的特征进行了分析评价 ,尤其是对混凝土断面的扫描电镜照片 ,用分形几何的方法测试分析 ,得到了断面孔隙形貌的分形维数 ,可以直接用于描述混凝土孔隙的复杂程度。此外 ,采用压汞测孔方法测试了基准混凝土的孔分布曲线和掺加超细粉煤灰的混凝土的孔分布曲线 ,并用分形理论分析了其特征 ,得到了相应的分形维数 ,评价了混凝土孔体积的分形特征 ,这些方法对描述水泥基多孔复合材料的孔隙特征十分有效。? A cording to the fractal theory,the characteristics of the concrete pore are analyzed and evaluated in this paper.Specially,the fractal dimensions of the shapes of the cross section pores from the scanning pictures of SEM,which can be used to describe the complexity of the concrete pores,are obtained by the analyse and test of the method of the fractal geometry.The distribution curves of the concrete pores about both standard and mixing super fine fly ash are tested by the method of MIP.The characteristics of the curves are analyzed and the fractal dimensions of the curves are gained.The fractal characteristica of the volume of the concrete pore are evaluated.These methods are very useful to describe the pore characteristic of the cementing composite materials. 〔

关 键 词：混凝土 孔隙 混沌分形 

分 类 号：TU528.01[建筑科学—建筑技术科学]