Effect of varying the maximum aggregate size of coconut (Cocos nucifera L.) shell aggregates (CSA) on the flexural strength of concrete

Date

4-2014

Degree

Bachelor of Science in Civil Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Timothy M. Bertiz

Committee Member

Richelle G. Zafra, Marish S. Madlangbayan

Abstract

The study investigated the flexural strength of concrete using coconut shell aggregate (CSA) while varying the maximum coarse aggregate size. Coconut shells were ground with the use of a hammer mill into CSA. CSA has lower density than gravel, and is considered to be lightweight aggregate. The maximum aggregate sizes used were 3⁄4 and 1 inch. Six specimens of size 100mm x 100mm x 400mm were molded for each maximum aggregate size. After a 28-day curing period, the specimens were tested for flexural strength using ASTM C293. Results of the study show that specimens with 3⁄4” max CSA size have greater flexural strength than the specimens with 1” max CSA size. Analysis of variance shows that the difference between the flexural strengths of both maximum aggregate sizes are significant

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Document Type

Thesis

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