The utilization of pulverized fly-ash as partial cement substitute for concrete hollow blocks

Date of Publication

2000

Document Type

Bachelor's Thesis

Degree Name

Bachelor of Science in Civil Engineering

Subject Categories

Civil Engineering

College

Gokongwei College of Engineering

Department/Unit

Civil Engineering

Abstract/Summary

Fly ash is a waste byproduct coming from power plants throughout the country. Researchers had conducted experiments on the utilization of fly ash as a partial replacement for cement in the production of concrete. At present, it is recommended that up to 20% replacement of fly ash be done on concrete for it to gain sufficient strength. It is yet to be seen if this percentage limit can be applicable in the manufacture of concrete hollow blocks.

Given mix designs of 1:18 and 1:15 cement-aggregate, testing on the compressive strength of concrete hollow blocks with fly ash replacing 0% up to 50% of the total cement used in each mix. Recommendations are given on the optimum percentage replacement of cement by fly ash for the manufacture of concrete hollow blocks. Absorption tests were done to compare permeability of fly ash mixed hollow blocks. Cost-benefit analyses were also done to explore the financial aspect of fly ash replacement.

Based from the experiments conducted, the CHB with fly ash cement replacement have lower compressive strength than ordinary CHB. However, the absorption of concrete hollow blocks with fly ash was found to be lesser. Further, the CHB with fly ash can be used as a non-load bearing CHB.

Abstract Format

html

Language

English

Format

Print

Accession Number

TU10486

Shelf Location

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

Physical Description

56 leaves ; Computer printout

Keywords

Fly ash, Cement—Additives

Embargo Period

2-4-2021

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