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ABSTRACT

CAETE, TEODORO JR. V., Naval State University, Naval, Biliran, Philippines.

October 2014. PROPERTIES OF COARSE AGGREGATE IN CAIBIRAN, BILIRAN. A

Research Study.

Instructor: ROSSINI B. ROMERO, Ph.D.

The physical and mechanical properties of coarse aggregate were tested at E.B.

TESTING CENTER INC. (Tacloban branch). The sample of coarse aggregate were

cassted from Mainit river and Kalambis river Caibiran, Biliran. The coarse aggregates

were sampled by the researcher on September 20, 2014 and submitted to the laboratory

at the same date. The laboratory technician Isagani Laurencio and the researcher, work

together on testing the sample and determining the values of specific gravity, absorption,

moisture content, wash loss on no. 200 seive, and clay lumps which is the physical

properties and the grading which is the mechanical properties of coarse aggregate. Both

the sample of coarse aggregate pass the test in specific gravity, absorption, unit weight,

soundness, abrasion loss, moisture content, clay lumps and sieve analysis, except on

the test for "wash loss on no.200 sieve" which is under the physical properties of

aggregate. So there is a restriction regarding on using both of the aggregate from Mainit

river and Kalambis river for concrete mixture. Their should be enough knowledge and

extra care when using this aggregate for concrete mixture. The physical and mechanical

properties serve as an indicator of the quality of an aggregate.