COMPARISON OF THE STRENGTH OF CONCRETE PRODUCED WITH COARSE AGGREGATE

ABSTRACT

This project work was aimed at investigating and comparing the strength of coarse aggregate from different source. These include both the physical and mechanical properties of coarse aggregate materials collected from different sources. The sample was collected from Abakaliki quarry site in Ebonyi State, Lokpansa quarry site in umunneochi, Abia State and Otanmiri River in Owerri, Imo State, al n the South Eastern part of Nigeria. The properties of these aggregates differ from place to place due to the composition of the parent material, weathering and other environmental factors. Methodology: Some regulatory bodies like British standard institute BSI and American Association of State highway and transportation officials AASHTO has formulated standard testing method for investing the physical and chemical properties of aggregate. Based on BS and ASTM, some tests were carried out on the different sample which includes: Los Angeles Abrasion test, Aggregate Impact value test, specific gravity and water absorption tests. Grading test (Sieve analysis) and compression test. These tests were carried out on the three samples to investigate their properties and finally, a comparison was made on their different properties.