Digital Image Correlation measurements of mortarless joint closure in refractory masonries

被引：23

作者：

Allaoui, S. ^{[1
]}

Rekik, A. ^{[1
]}

Gasser, A. ^{[1
]}

Blond, E. ^{[1
]}

Andreev, K. ^{[2
]}

机构：

[1] Univ Orleans, PRISME, EA 4229, F-45072 Orleans, France

[2] Tata Steel, Ceram Res Ctr, Velsen Noord, Netherlands

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2018年 / 162卷

关键词：

Masonry; Mortarless joint; Optical measurements; DIC; Refractory materials; BEHAVIOR;

D O I：

10.1016/j.conbuildmat.2017.12.055

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Understanding the compressive behaviour of mortarless joints is necessary to optimise refractory masonry structures. This study investigates joint closure using Digital Image Correlation, a contactless measuring method. Results show that the gap thickness of the dry joint is mainly due to the non-planarity of contacting surfaces, the surface roughness playing a secondary role. The process of joint closure involves roughness crushing and the adjustment of surfaces, and is strongly heterogeneous, orthotropic and nonlinear. Local joint opening is observed during the first stage of the global joint closure process. This phenomenon is due to rigid body motion which induces a plane rotation of the upper contacting bricks. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：334 / 344

页数：11

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