基于灰靶决策对BFCC力学性能及抗渗性能的评估

doi:10.11896/cldb.20080223

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Abstract The compressive strength and impervious performance change rules of BFCC under different curing ages and different stress ratios are studied in this paper. Grey system theory is used to analyze the grey correlation of BFCC compressive strength, electric flux and pore structure parameters. The multi-objective weighted grey target decision model is used to evaluate the comprehensive performance of BFCC under different stress ratios. The results show that the compressive strength of BFCC increases first and then decreases with the increase of fiber length, and the electrical flux value of BFCC decreases continuously. Under the condition of the same stress ratio, the compressive strength of BFCC is increased and the electric flux is decreased when the curing period is prolonged. At the same curing age, when the stress ratio increases, the value of BFCC power flux first decreases and then increases, and it is the smallest when the stress ratio is 0.2, while the compressive strength continues to decrease. According to the results of grey correlation analysis, the bubble spacing coefficient was used to indicate the change of compressive strength and the specific surface area of the bubble was used to represent the change of electric flux. The multi-objective weighted grey target decision model is used to quantitatively evaluate the comprehensive performance of BFCC under different stress ratios. As the stress ratio increases, the relative comprehensive performance index of BFCC decreases and its comprehensive performance deteriorates.

Key words： basalt cement matrix composites compressive strength electric flux grey relation gray target decision

Published: 12 November 2021

CLC number:

TU528

Fund:National Natural Science Foundation of China (11762015, 11862022), Natural Science Foundation of Inner Mongolia Autonomous Region (2018MS05047), Education Department of Inner Mongolia Autonomous Region (NJZY19080).

Corresponding Authors: 2732108278@qq.com

About author:: Xiaoyan He, master, associate professor, and tutor of master of Civil Engineering, now works in the department of architectural engineering, School of Civil Engineering, Inner Mongolia University of Technology. Mainly engaged in the mechanical properties and durability of concrete research.
Yunhong Hao, doctor and doctoral supervisor, is now the dean of Graduate School of Inner Mongolia University of Technology. He is mainly engaged in research on durability damage and evaluation of engineering structures and materials in regional special environment.

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	HE Xiaoyan
	ZHANG Zhixin
	ZHAO Yanru
	HAO Yunhong
	QIN Lida

Cite this article:

HE Xiaoyan,ZHANG Zhixin,ZHAO Yanru, et al. Evaluation of Permeability and Mechanical Properties of BFCC Based on Gray Target Decision[J]. Materials Reports, 2021, 35(20): 20035-20039.

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http://www.mater-rep.com/EN/10.11896/cldb.20080223 OR http://www.mater-rep.com/EN/Y2021/V35/I20/20035

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