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67434

Reduction in environmental pollution using rice-husk ash in concrete

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Last updated: 25 Dec 2024

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Abstract


The production of cement as a binding component of concrete is costly, consumes high energy,
depletes natural resources and emits huge amounts of greenhouse gases (one ton of cement
production emits about one ton of CO2). Consequently, environmental degradation, serious
pollution and health hazards associated with cement and concrete industries, have come under
intense scrutiny from environmentalists and the governments. Developed and some developing
countries, are already using industrial and agricultural wastes in concrete. These wastes also pose
several environmental problems. Partial inclusion of waste instead of 100% cement has been found
to be environmentally safe, stable, durable as well as economical. Rice husk ash (RHA), rich in
silica content, can be produced from rice husk using appropriate combustion technique for use in
concrete as a supplementary cementitious material. The present study used rice-husk ash (RHA) as
a partial replacement of cement in concrete. X-ray diffraction analysis, scanning electron
microscopic examination, compressive strength (without and with superplasticizers), flexural
strength, resistance to aggressive chemicals and cost analysis were carried out. Concrete and
mortars containing 25% RHA as a replacement of cement, exhibited same or better results
compared to conventional concrete. Moreover, it leads to substantial cost savings not to mention
benefits to the environment.

DOI

10.21608/erjm.2013.67434

Keywords

Concrete, Rice-husk ash, X-Ray Diffraction, Scanning Electron Microscopy, Compressive strength, Flexural strength. Chloride and sulphate resistance

Authors

First Name

Turki Mesfer

Last Name

Al-Aboud

MiddleName

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Affiliation

Department of Civil Engineering, Faculty of Engineering and Islamic Arccheticture Umm Al-Qura University,

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Volume

36

Article Issue

3

Related Issue

10112

Issue Date

2013-07-01

Receive Date

2020-01-04

Publish Date

2013-07-01

Page Start

329

Page End

338

Print ISSN

1110-1180

Online ISSN

3009-6944

Article File

ERJM_Volume 36_Issue 3_Pages 329-338.pdf

PDF . 5.0MB

Link

https://erjm.journals.ekb.eg/article_67434.html

Detail API

https://erjm.journals.ekb.eg/service?article_code=67434

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11

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Original Article

Type Code

1,118

Publication Type

Journal

Publication Title

ERJ. Engineering Research Journal

Publication Link

https://erjm.journals.ekb.eg/

MainTitle

Reduction in environmental pollution using rice-husk ash in concrete

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Article

Created At

22 Jan 2023