Experimental investigation of the influence of head joints and grouting conditions on the shear strength of concrete block masonry

被引：1

作者：

Zhu, Jianyixian ^{[1
]}

Falkenberg, Kevin ^{[1
]}

Iskander, George ^{[1
]}

Ahmed, Ahmed ^{[1
]}

Shrive, Nigel ^{[1
]}

机构：

[1] Univ Calgary, Schulich Sch Engn, Dept Civil Engn, 2500 Univ Dr NW, Calgary, AB T2N 1N4, Canada

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2024年 / 411卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Masonry; Concrete block; Shear strength; Triplet test; Experimental test;

D O I：

10.1016/j.conbuildmat.2023.134551

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The nonlinear composite nature of masonry has limited theoretical understanding of material shear strength - especially with concrete block, where minimal experimentation has rendered the influences of two important variables (head joints, presence of grout) unknown. The effects of these variables were investigated experimentally on non-precompressed triplet specimens. Head joints did not influence shear strength statistically significantly: the proportion of grouted cores linearly increased shear strength. The provisions in the Canadian standard lacked accuracy when predicting partially grouted specimen strengths (overestimating up to 135%). Units from tested triplet specimens were also found to have similar compressive strengths to undisturbed units.

引用

页数：11

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