Research on basic mechanical properties and damage mechanism analysis of BFUFARC

Yu H. Yang , Sheng J. Jin , Chang C. Shi , Wen P. Ma , Jia K. Zhao

Abstract

In order to study the mechanical properties of basalt fiber reinforced ultra-fine fly ash concrete (BFUFARC), the effects of ultra-fine fly ash (UFA) content, basalt fiber content, basalt fiber length and water reducing agent content on the compressive strength, splitting tensile strength and flexural strength of the composite material were studied through experimental and theoretical analysis. Also, a scanning electron microscope (SEM) was employed to analyze the mesoscopic structure in the fracture surface of composite material specimens at magnifications of 500 and 3500. Besides, the energy release rate (Gc) and surface free energy (

Key Words

BFUFARC; crack tip cracking; energy release rate; mesoscopic structure; surface free energy; theoretical analysis

Address

(1) Yu H. Yang, Sheng J. Jin, Chang C. Shi, Wen P. Ma — School of Materials Science and Engineering, School of Architecture and Civil Engineering, Shenyang University of Technology, No.111, Shenliao West Street, Shenyang Economic and Technological Development Zone, Shenyang 110870, Liaoning Province, the People's Republic of China
(2) Chang C. Shi — Department of Civil Engineering, Hebei University of Water Resources and Electric Engineering, No.1 Chongqing Road, Nanhuan Middle Road Street, Yunhe District, Cangzhou 061001, Hebei Province, the People's Republic of China
(3) Jia K. Zhao — School of Civil Engineering, Inner Mongolia University of Science and Technology, No.7 Alding Street, Baotou City, Inner Mongolia Autonomous Region, Baotou 014010, Liaoning Province, the People's Republic of China
(4) Jia K. Zhao — School of Civil Engineering, Shenyang Jianzhu University, No. 9, Hunnan East Road, Hunnan New Area, Shenyang 110168, Liaoning Province, the People's Republic of China.

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