Deformation analysis and failure prediction of bonding mortar in external thermal insulation cladding system (ETICS) by coupled multi physical fields method

被引：13

作者：

Zhu, Kun ^{[1
]}

Jiang, Wei ^{[1
,2
]}

Yu, Long ^{[1
,2
]}

Guo, Peilu ^{[1
]}

Yang, Zhenghong ^{[1
,2
]}

机构：

[1] Tongji Univ, Sch Mat Sci & Engn, 4800 Caoan Rd, Shanghai 201804, Peoples R China

[2] Tongji Univ, Minist Educ, Key Lab Adv Civil Engn Mat, 4800 Caoan Rd, Shanghai 201804, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2021年 / 278卷

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

Coupled multi-physical fields; External thermal insulation cladding systems; Mortar; Failure prediction; Deformation analysis; MOISTURE TRANSPORT; BUILDING-MATERIALS; GAS-FLOW; HEAT; THICKNESS; CONCRETE;

D O I：

10.1016/j.conbuildmat.2020.122017

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

External thermal insulation cladding systems (ETICSs) have been widely used in recent years as a method of saving energy in buildings. As their application increases, failures caused by bonding mortar deformation are becoming more serious. In this paper, a coupled thermo-moisture-mechanical model was established by simulation to analyse the influence of a typical climate with four seasons and the method of mortar adhesion with deformation. We investigated the contributions of temperature, relative humidity, and wind pressure on ETICS failure risk. We also analysed the failure risk in different extreme climates. This study aids in accurately quantifying deformation and predicting failure under complex climatic conditions. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：9