Evaluation of Concrete Durability Based on Cloud Model and D-S Evidence Theory. Issue 1 (January 2022)

• Record Type: Journal Article
• Authors: Yang, Sai; Huang, Jinlong; Qin, Yawei; Wu, Xianguo
• Is Part Of: Journal of physics. Volume 2148:Issue 1(2022)
• Publication Date: 2022-01
• Subjects: Concrete -- Freeze thaw cycle test -- Evaluation criteria -- Cloud model -- D-S evidence theory -- Durability evaluation; Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/2148/1/012054
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: The environment in alpine region is complex and harsh, and the durability of concrete is seriously affected by freeze-thaw and salt invasion. In this paper, the relative dynamic modulus of elasticity, chloride permeability coefficient, mass loss rate and carbonation depth are selected as the evaluation indexes of concrete durability in Northeast China. Based on prior knowledge and expert group decision-making, the durability grade is divided and the evaluation standard is established; The evaluation model of concrete durability based on cloud model and D-S evidence theory is established. According to the engineering experimental data, the membership degree of concrete durability evaluation index in different grades is obtained through the correlation measurement of cloud model. The normalized evidence is formed and fused by D-S evidence theory. The results show that the durability grade of concrete is grade I, which is consistent with the actual project. It shows that using cloud model and evidence theory evaluation model to evaluate the durability of concrete is a new and effective method.