الفهرس 
الغلافOnly 14 pages are availabe for public view
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Abstract
Abstract
This thesis includes a study of the behavior of the load bearing walls fabricated from limestone in Egypt. Therefore, an experimental program consisting of three stages was developed. The first stage includes testing units of limestone cut from several different quarries to determine their mechanical and chemical properties and determining which one is better in these properties. The second stage includes testing blocks of mortar No. (1) and mortar No. (4) according to the Egyptian Code for Designing and Executing Masonry Works as well as building Masonry prisms made of limestone using the two types of mortar mentioned above, where tests were conducted (compressive strength, shear strength, in plane tensile strength, flexural tensile strength for out of plan bending). Therefore, the prisms were evaluated under the influence of compressive loads and shear loads as well as tensile loads according to each type of mortar used. The results showed that the compressive strength of prisms assemblage, as well as their tensile strength, increased with the increasing of cement content, while the shear strength of prisms assemblages increased with the increasing of lime content. As for the third stage, it includes testing six walls under the influence of axial load, as these walls are divided into two groups: The first group was built using mortar No. (1), while the second group was built using mortar No.