"The Effect Of Local Basalt Stones On The Behavior Of Structural Reinforced Elements Subjected To Shear And Bending "

This paper studies a practical laboratory process of the possibility of benefiting from an important resource of the natural resources available in the country, namely "Basalt" which is found in large quantities in the southern region (As-Suwayda) to demonstrate how much it meets the requirements of Standard Specifications for use in the manufacture of concrete by testing five design mixtures of concrete , of which the cubic dimensions are (15% x 15) cm and the cylindrical dimensions are (15 * 30 cm) with different percentages of the basaltic and dolomitic calcareous compounds used in them as follows: (0% basalt and 100% lime),( 25% basalt and 75% lime) , (50 % basalt 50 % lime) (75% basalt 25% lime), (100%basalt and 0% lime) on the strength of pressure and tensile strain by Splitting and Moduls of Elasticity of ages (28-7-3) days, and its effect on the behavior of Reinforced Structural Elements susceptible to shear and Bending through testing Reinforced beams of dimensions (16 × 12 × 200) cm on shear, Bending and cracking Moduls (Coefficient) with ages of (14-28) days.

A Research study of the effect of using basalt local pebbles (graves) on hardened (rigid) concrete specification

This paper studies a practical laboratory research of the possibility of utilizing the natural resources available in the country, namely Basalt, which is available in large quantities in the southern region (Al-Suwayda) in order to demonstrate the extent to which it meets the requirements of standard specifications for use in the manufacture of (Reinforced) concrete by means of testing the resistance of pressure and tensile by splitting and the elasticity coefficient of hardened (rigid concrete) at Different ages (3-7- 28) days. As a result, pressure resistance tests increased by approximately 20 % with the maturating period progress of concrete mixtures. The pressure resistance of concrete mixtures prepared using basalt pebbles was approximately 18% higher than the pressure resistance of concrete formed usingcalcite(calcareous) pebbles in ages above 7 days There was also a slight decrease of 8% in the split tensile resistance of the studied samples prepared with basalt minerals , compared with the samples prepared using calcite (calcareous) pebble and this resistance increases over time . As for the elasticity coefficient , a 20% increase in the elasticity coefficient of the concrete was noticed with the maturating of the concrete mixtures compared to the referential mixture.