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.
Restoration of ancient structures is an important part of
reconstruction process which will be witnessed by our country, the
aim of this research is to improve a local manufacturers lime mortar.