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The behavior of the basaltic shear diaphragms of the remaining buildings of ancient times was investigated as experimental research,and its resistance to natural factors and horizontal loads resulting from wind and earthquakes,to take advantage of them in the maintenance of modern buildings,which are associated with floors and beams as horizontal shear diaphragmsIn the hot and cold areas of the African continent, Asia and other similar areas,to replace the reinforced concrete shear diaphragms,and metal shear diaphragms that lose their resistance to the above factors. When the buildings are inspected, the vertical and slanted slits resulting from the side loads are placed,it was found that the appearance of the cracks related to the hardness of the shear diaphragm section, the basalt stone specifications and the design of the shear diaphragm base.The research was conducted to determine the durability, water permeability and resistance to pressure and tensile strength of basalt stone samples used in historic stone buildings and their location in laboratory methods.Horizontal loads resulting from seismic intensity were determined on the front of the building at the tile level according to international requirements and specifications.The method of calculating the basaltic shear diaphragms was applied by applying arithmetic to build a basalt stone from several floors and a basement, taking into account the characteristic resistance of basalt, depending on its density from pressure and stretching and basalt stone in calculating.
Experiments Has been made on lime mortar which have a weak resistance so we added materials like pozolan, and bricks to improve the mechanical properties of the mixture, as we added fiberglass to the mix, and study their effect on the mechanical properties of mortar, also experiments has been made on natural limestone which used in the construction, experiments on samples of mural prismatic composed of stone and mortar to see pressure strength of mural samples, and mural samples subjected to curvature to determine tensile strength of stone walls with limestone mortar reinforced with fiber glass. We observed increase in the mural samples tensile strength about 73% when we added a small amount of fiber glass doesn't exceed 2% of the proportion of the existing lime in the mixture, which shows the effective improvement in the mortar extracted specifications.
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