基于均匀设计的混凝土细集料级配分形试验研究  

On Fractal Characteristics of Size-Distribution of Concrete Fine Aggregate based on Uniform Design

作　　者：汪振双[1,2] 王立久[2] 

机构地区：[1]东北财经大学投资工程管理学院,辽宁大连116025 [2]大连理工大学建设工程学部,辽宁大连116024

出　　处：《沈阳大学学报（自然科学版）》2012年第5期1-4,共4页Journal of Shenyang University：Natural Science

基　　金："十一五"国家科技支撑计划重大项目(2006BAJ04A04);辽宁省教育厅资助项目(2008202)

摘　　要：利用均匀设计安排试验,运用分形几何学原理对混凝土细集料级配进行了研究.在各种材料用量不变的情况下,研究了不同分形维数的细集料级配对砂浆扩展度,28d抗压、抗折强度,细度模数和最大密度曲线理论n值的影响.结果表明,不同分形维数对应的砂浆扩展度、强度不同,对应细集料的细度模数和最大密度曲线理论n值不同.不同级配细集料的分形维数和最大密度曲线理论n值两者之间存在着对应的线性关系.The gradation of concrete fine aggregates was analyzed by using uniform design and the principal of fractal geometry theory.Different fractal dimension of fine aggregate gradation influence of mortar dispersion degree was researched,as well as 28 d compressive strength,28 d flexural strength,fineness modulus and n of the maximum density curve theory,under the constant content of different materials.The results show that different fractal dimension of fine aggregate gradation has different dispersion degree and strength,and different fineness modulus and n of the maximum density curve theory.It was concluded that there is an apparent liner relationship between fractal dimension of fine aggregate gradation and n of the maximum density curve theory.

关 键 词：砂浆 细集料 级配 分形维数D 

分 类 号：TU528.79[建筑科学—建筑技术科学]