Comparing fracture openings in mortar using different imaging techniques

IF 0.7 Q4 MECHANICS

Studia Geotechnica et Mechanica Pub Date : 2024-03-30 DOI:10.2478/sgem-2024-0004

Jonathan Marliot, Stephen Hedan, M. Siitari-Kauppi, J. Sammaljärvi, Catherine Landesman, Pierre Henocq, P. Sardini

引用次数: 0

Abstract

This paper presents a quantitative characterisation of the fracture openings obtained in triaxial shear tests on several cement mortar samples. The comparison was carried out on three samples with various apertures using different methods of semi-destructive and non-destructive characterisation: optical microscopy, scanning electron microscopy, X-ray computed tomography, digital volume correlation and the 14C-polymethylmethacrylate method. The fracture aperture distribution results are in good agreement between the different methods. Although the opening results obtained are comparable, the most advantageous method was considered to be XRCT profile analysis based on the size of the target area studied and the specific characteristics of each technique.

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使用不同成像技术比较砂浆中的断裂开口

本文介绍了几种水泥砂浆样品在三轴剪切试验中获得的断裂开口的定量特征。采用不同的半破坏性和非破坏性表征方法：光学显微镜、扫描电子显微镜、X 射线计算机断层扫描、数字体积相关性和 14C 聚甲基丙烯酸甲酯法，对具有不同孔径的三个样品进行了比较。不同方法得出的断口孔径分布结果非常一致。虽然获得的开孔结果具有可比性，但根据研究目标区域的大小和每种技术的具体特点，认为最有优势的方法是 XRCT 剖面分析法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Studia Geotechnica et Mechanica MECHANICS-

CiteScore

1.30

自引率

16.70%

发文量

审稿时长

16 weeks

期刊介绍： An international journal ‘Studia Geotechnica et Mechanica’ covers new developments in the broad areas of geomechanics as well as structural mechanics. The journal welcomes contributions dealing with original theoretical, numerical as well as experimental work. The following topics are of special interest: Constitutive relations for geomaterials (soils, rocks, concrete, etc.) Modeling of mechanical behaviour of heterogeneous materials at different scales Analysis of coupled thermo-hydro-chemo-mechanical problems Modeling of instabilities and localized deformation Experimental investigations of material properties at different scales Numerical algorithms: formulation and performance Application of numerical techniques to analysis of problems involving foundations, underground structures, slopes and embankment Risk and reliability analysis Analysis of concrete and masonry structures Modeling of case histories

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