Fractal strength of cement gels and universal dimension of fracture surfaces

被引:32
作者
Ficker, T. [1 ]
机构
[1] Tech Univ, Fac Civil Engn, Dept Phys, Brno 60200, Czech Republic
关键词
Fracture; Fracture surfaces; Fractal geometry; Fractal dimensions; Porous materials; Cement gels; Compressive strength;
D O I
10.1016/j.tafmec.2008.07.004
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Compressive strength of porous materials, especially of cement gels, has been estimated by means of fractal dimension of fracture surfaces. The relationship between mechanical strength and fractal characteristics of porous gels has been derived and tested experimentally using samples of cement gels. The dimensions of fracture surfaces have been found to be general parameters independent on the fractal dimensions of inner material components. (c) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:167 / 171
页数:5
相关论文
共 30 条
[21]   CHEMISTRY IN NONINTEGER DIMENSIONS BETWEEN 2 AND 3 .1. FRACTAL THEORY OF HETEROGENEOUS SURFACES [J].
PFEIFER, P ;
AVNIR, D .
JOURNAL OF CHEMICAL PHYSICS, 1983, 79 (07) :3558-3565
[22]   Effect of water/cement ratio and silica fume addition on the fracture toughness and morphology of fractured surfaces of gravel concretes [J].
Prokopski, G ;
Langier, B .
CEMENT AND CONCRETE RESEARCH, 2000, 30 (09) :1427-1433
[24]   FRACTALS, FRACTURES, AND SIZE EFFECTS IN CONCRETE [J].
SAOUMA, VE ;
BARTON, CC .
JOURNAL OF ENGINEERING MECHANICS-ASCE, 1994, 120 (04) :835-854
[25]   Structure and properties of gels [J].
Scherer, GW .
CEMENT AND CONCRETE RESEARCH, 1999, 29 (08) :1149-1157
[26]  
SCHILLER KK, 1958, MECHANICAL PROPERTIE, P35
[27]   A fractal study of the fracture surfaces of cement pastes and mortars using a stereoscopic SEM method [J].
Wang, YT ;
Diamond, S .
CEMENT AND CONCRETE RESEARCH, 2001, 31 (10) :1385-1392
[28]   THE FRACTAL ARRANGEMENT OF HYDRATED CEMENT PASTE [J].
WINSLOW, D ;
BUKOWSKI, JM ;
YOUNG, JF .
CEMENT AND CONCRETE RESEARCH, 1995, 25 (01) :147-156
[29]   A fractal model for soil pores and its application to determination of water permeability [J].
Xu, YF ;
Sun, DA .
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 2002, 316 (1-4) :56-64
[30]   Influence of concrete composition on the characterization of fracture surface [J].
Yan, A ;
Wu, KR ;
Zhang, D ;
Yao, W .
CEMENT & CONCRETE COMPOSITES, 2003, 25 (01) :153-157