Effect of petrographic and chemical composition on the physical and mechanical properties of some Egyptian building stones

الملخص EN

Building stones have a wide variety in their mineralogical, texture, microstructure, physical
and mechanical properties.

In this article, seven types of Egyptian building stones have been
chosen, to be examining petrographically and chemically and determine their physical
properties and mechanical behavior.

these types of studied building stones including; red
granite, grey granite (granodiorite), El-Minya marble, Red Sea marble, South Sinai marble,
El-Minya limestone and Helwan limestone were tested to obtain their physical and
mechanical properties such as; dry density, apparent porosity, water orption, uniaxial
compressive strength, stress-strain curves, abrasion resistance and durability.

Experimental
and calculated results indicated that, the physical properties and mechanical behavior of the
same type of the studied samples are generally a function of a wide range of mineralogy and
microstructure including, texture, grain size, pores, fossils and diagenesis presence.

These
properties affecting the uses of stones as building or decorative stones.