Use of dry mixing method in fly ash based geopolymer as a stabilizer for dredged soil

Date of Publication

2016

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

Jonathan R. Dungca

Defense Panel Member

Joenel G. Galupino
Maria Emilia Sevill

Abstract/Summary

In this study the researchers aims to improve the properties of dredged soil obtained from a river beside a coal fired power plant in Mindanao. The researchers would be using different percentages namely 10%, 20%, 30% of fly ash based geopolymer using dry mixing method were studied to determine the optimum mix.

The dredged soil was treated with varying percentages of fly ash based geopolymer were studied. The procedures based on the ASTM standards were conducted to determine the index properties namely grain size distribution curve (ASTM D422), specific gravity (ASTM D854), Atterberg's limits (D4318), and CBR test (ASTM D1833) and UCS test (ASTM D2166) of untreated soil. While only the California bearing ratio test and UCS test were conducted on the treated soil. The experimental results showed that the fly ash based geopolymer improved both the CBR index and unconfined compression strength of the dredged soil. The optimum mix for the soil-geopolymer mix was 30% because it displayed the largest increase in the CBR index (50.23%) and unconfined compressive strength (912.88 Kpa).

Abstract Format

html

Note

Presented to Engr. Richard de Jesus submitted to Dr. Jonathan R. Dungca.

Language

English

Format

Print

Accession Number

TU18981

Shelf Location

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

Physical Description

xiv, 101 pages : illustrations (some color) ; 31 cm.

Keywords

Soils--Quality--Philippines--Mindanao Island; Fly ash--Philippines--Mindanao Island

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