Properties of High Performance Concrete Containing Stone Powder as Replacement of Cement

Abstract

The need to produce high performance concrete led the researches to try to exploit thepotentialities of natural or artificial materials so as to improve the performance of concrete. Whitesandstone powder has been used as an alternative of proportion on cement after being processed,since its main oxides are similar to those of cement.The aim of this research is to study the effect of added (10,15,20,25)% white sandstone powder asreplacement of cement, used in concrete mix which it has a mixing proportion of(1:1.6:1.2;w/c=0.28), and it is shown their effect on some of mechanical properties (compressivestrength, splitting tensile strength, and flexural strength).The test results shows clear improvement in some mechanical properties of concrete by using 20%sandstone powder. The increment ratio in compressive strength, splitting tensile strength, andflexural strength were (32, 42.5, 31.6)% respectively for each compared with reference mixture forthe same duration.