EFEECT OF FINE AGGREGA TYPE ON MECHANICAL PROPERTIES OF ADMEXTURED/NON-AMIXTURED CONCRETE

Document Type : Research Paper

Author

Civil Engineering Dept., Faculty of Engineering, Sana'a University, Sana’a, Yemen

Abstract

This paper reports the results of a study conducted to evaluate the effects of three types of fine aggregates on the compressive and tensile strength of concrete. The three fine aggregates used here are Saddah, Thelaa, and Mareb sands which were named after their sources and they represent the common types being used in broad regions in Yemen. A number of concrete mixes were prepared and tested at the curing ages of 1, 7, 14 and 28 days. Two types of superplasticizers were used with some mixes, named F and G. The results showed that concrete containing Saddah sand had the highest strength capacities in both compression and tension while concrete made with Mareb sand had the lowest strength. On the other hand, it was observed that concrete mixes made with superplasticizers showed higher strengths compared to those made without admixtures.

Main Subjects