Size effect on the unconfined compressive strength and modulus of elasticity of limestone rock

被引：0

作者：

Al-Rkaby, Alaa H.J. ^{[1
]}

Alafandi, Zuheir M.S. ^{[2
]}

机构：

[1] Department of Civil Engg., Curtin Uni., Perth, Australia

[2] Building and Const. Dept., Duhok Tech. Inst., Duhok Polytechnic Uni., Kurdistan Region, Iraq

来源：

Electronic Journal of Geotechnical Engineering | 2015年 / 20卷 / 12期

关键词：

Elastic moduli - Lime - Compression testing - Limestone - Materials testing;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

This paper discusses the dependence of common rock properties on size and shape of the specimen. The phenomenon, known as scale effect, is performed in limestone. Uniaxial compression test was carried out using specimens in three sizes, with different shapes (different lateral /height (l/h) ratio).Compressive strength (qu) and Modulus of elasticity (E) were evaluated. The results showed that quand E depend on specimen size. Also, quis increased with l/h ratio and decreased as the size increases, while E is increased when the size increases. The results also showed that E (concerning shape effect) is minimum when l/h =1, and E increased when l/h become more or less than one. Such testing results should be considered when suggesting methods for determining uniaxial compressive strength and deformability of stone and rock materials are revised. © 2015 ejge.

引用

页码：5143 / 5149