Investigation on the effect of addition of crystalline rice hull ash (RHA) to the compressive strength of concrete

Date

12-2015

Degree

Bachelor of Science in Civil Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Kimjay M. Lamar

Abstract

To address the issue regarding the environmental impact of improper disposal of waste material, studies using waste material as replacement for cement have been done by many. Crystalline rice hull ash (RHA) has been used in different studies however the results are less compared to concrete with amorphous RHA. In this study however, partial addition of crystalline RHA to cement was done instead of partial replacement. This study determined and compared the behavior of concrete upon using a proposed method, addition of RHA, with the conventional ACI method for mix proportioning. Specimens were cured for 7 and 14 days and only compressive strength of specimens were determined. Results showed that for 7 days, only 5% addition had an increase in compressive strength while the other % addition produced lower compressive strength than the control specimens. Compressive strength of specimens with 15 and 20% RHA addition and cured for 14 days resulted to higher compressive strength compared to the control.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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