Utilization of Perna Viridis as a partial substitute to cement in concrete mix

Date of Publication

2014

Document Type

Bachelor's Thesis

Degree Name

Bachelor of Science in Civil Engineering with Specialization in Structural Engineering

Subject Categories

Civil Engineering

College

Gokongwei College of Engineering

Department/Unit

Civil Engineering

Thesis Adviser

Bernardo A. Lejano

Defense Panel Member

Alden Paul D. Balili

Richard M. de Jesus

Abstract/Summary

Perna Viridis (Tahong) shells are non-biodegradable and thus considered waste products. This study was conducted as a means to recycle these shells while finding an alternative source of constitution material in the process.

The study uses Perna Viridis Shells as partial replacement to cement in concrete. Replacement is done in 3 intervals: 5%, 10%, and 15%. Water cement ratios were also varied at 0.3, 0.4, and 0.5. Mechanical properties such as Compressive and Splitting Tensile strength were tested. Workability and cost were also studied.

A comparison of the data shows that at a certain combination of water cement ratio and percentage replacement (0.4 water cement ratio and 10% replacement), the strength of concrete is enhanced by 48% (from 21.32MPa to 31.62Pa) however the overall workability decreases in the process but is still within workable range (from 110mm to 85mm). The study shows that cement replacement with these shells are viable, however, only yields positive results on certain combination of water-cement rations and percentage replacements.

Abstract Format

html

Language

English

Format

Print

Accession Number

TU18726

Shelf Location

Archives, The Learning Commons, 12F, Henry Sy Sr. Hall

Physical Description

xi, 85, 131 unnumbered leaves : illustrations (some colored) ; 29 cm.

Keywords

Perna viridis; Freshwater mussels; Concrete--Additives

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