王立久   

Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates

Title : 大连理工大学(土木水力学院) 建筑材料研究所 所长 大连理工大学建筑能源技术研究中心 主任 辽宁省复合材料学会常务副理事长兼秘书长 政协辽宁省委员会委员 “建筑技术与应用”“混凝土”和“国外连建材科技“等杂志编委

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Language:English

Paper Publications

Title of Paper:Experimental Research on Grading of Fine Aggregate in Frame Concrete

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Date of Publication:2011-01-07

Included Journals:EI、CPCI-S、Scopus

Volume:163-167

Page Number:1085-1089

Key Words:Frame Concrete; Fine Aggregate; Grading; Uniform Design Method; Fractal

Abstract:According to frame concrete theory, Concrete was composed of mortar matrix, coarse aggregate, and transition zone between mortar matrix and coarse aggregate. Proper particle grading of fine aggregate can not only save cement, but also increase comprehensive properties of mortar matrix. Uniform design method was used to study the relationships between the grading of fine aggregate and workability, and the relationship with mechanic properties of mortar matrix and concrete. Based on fractal theory, the relationship between fractal dimension and modulus of fineness, and the relationship between fractal dimension and n value in Fuller equation were researched. It concluded that grading of fine aggregate affects the workability and mechanic properties of mortar matrix and concrete, significantly. There was a good linear relation between fractal dimension and n value in Fuller Equation, and fratatal dimension decreased with modulus of fineness increasing.

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