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。因而,研究人员将分形理论科学地引入混凝土研究之中。介绍了分形理论,综合评述了分形理论评价混凝土材料的胶凝材料颗粒特征、集料的表面特征、混凝土孔隙的分形特征、混凝土断裂韧性和断裂能的分形效应、分形理论在混凝土材料声发射中的应用,并提出分形理论在混凝土研究中的应用前景。
Concrete shows a series of fractal characteristics during structural formation as well as under service consequently,the researchers introduced the fractal theory to explain the phenomena occurred in concrete.For convenience,the basic concept of fractal theory was introduced firstly.Then,this paper reviewed how to employ the fractal theory to evaluate particle characteristics of cementitious material,the surface texture of aggregates,pore structure in concrete,fracture toughness,fracture energy.And further this paper reviewed how the fractal theory was used to investigate the acoustic emission behavior in concrete materials.Finally,the prospect of fractal theory in the study of concrete was proposed.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2010年第7期1362-1368,共7页
Journal of The Chinese Ceramic Society
基金
国家"973"计划(2009CB326200)资助项目
关键词
混凝土
分形理论
分形特征
孔隙
断裂性能
塑性开裂
concrete
fractal theory
fractal characteristics
pore
fracture properties
plastic cracking
