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Utilizing silica fume for development of concrete strength

Corresponding to the introduction of silica fume in concrete improves both the mechanical and durability characteristics of the concrete. This thesis presents the results of research effort conducted at different percentage of silica fume in concrete. The program investigated various characteristics...

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Main Author: Ahmad, Afham Zulhusmi
Format: Thesis
Published: 2013
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utm.my/id/eprint/42040/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:76224?queryType=vitalDismax&query=Utilizing+silica+fume+for+development+of+concrete+strength
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spelling my.utm.420402017-07-09T03:12:06Z http://eprints.utm.my/id/eprint/42040/ Utilizing silica fume for development of concrete strength Ahmad, Afham Zulhusmi TA Engineering (General). Civil engineering (General) Corresponding to the introduction of silica fume in concrete improves both the mechanical and durability characteristics of the concrete. This thesis presents the results of research effort conducted at different percentage of silica fume in concrete. The program investigated various characteristics of silica-fume concrete. It emphasized the effect of silica fume on workability level and its maintenance of fresh concrete; strength development and strength optimization and of hardened concrete. The experimental program comprised four levels of silica-fume contents (as partial replacement of cement by weight) at 0% (control mix), 5%, 10%, and 15% without superplasticizer. Concrete mixture been designed by respecting to American Concrete Institute (ACI) method. Concrete cube specimens were tested using compression machine for curing age of 3, 7, and 28 days. It was found that there was an optimal value of silica-fume content at which concrete strength improved significantly. All data had been analyzed using mean statistical method and regression method. Due to the slow development of pozzolanic effect, there was a drop in early strength up to seven days and late significant gains up to 28 days upon introducing silica fume to concrete. As per design requirement, the control mixture batch achieved the targeted 28-day compressive strength of 35 MPa. Result of modified concrete designation indicates that 10 and 15 percent addition of silica fume batches stated the 28-day average compressive strength of 38.28 MPa and 40.66 MPa, significantly higher compared to control mix. However, the 5% added silica fume concrete batch showed unobvious increase in compressive strength with 35.62 MPa 2013 Thesis NonPeerReviewed Ahmad, Afham Zulhusmi (2013) Utilizing silica fume for development of concrete strength. Masters thesis, Universiti Teknologi Malaysia, Faculty of Civil Engineering. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:76224?queryType=vitalDismax&query=Utilizing+silica+fume+for+development+of+concrete+strength
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Ahmad, Afham Zulhusmi
Utilizing silica fume for development of concrete strength
description Corresponding to the introduction of silica fume in concrete improves both the mechanical and durability characteristics of the concrete. This thesis presents the results of research effort conducted at different percentage of silica fume in concrete. The program investigated various characteristics of silica-fume concrete. It emphasized the effect of silica fume on workability level and its maintenance of fresh concrete; strength development and strength optimization and of hardened concrete. The experimental program comprised four levels of silica-fume contents (as partial replacement of cement by weight) at 0% (control mix), 5%, 10%, and 15% without superplasticizer. Concrete mixture been designed by respecting to American Concrete Institute (ACI) method. Concrete cube specimens were tested using compression machine for curing age of 3, 7, and 28 days. It was found that there was an optimal value of silica-fume content at which concrete strength improved significantly. All data had been analyzed using mean statistical method and regression method. Due to the slow development of pozzolanic effect, there was a drop in early strength up to seven days and late significant gains up to 28 days upon introducing silica fume to concrete. As per design requirement, the control mixture batch achieved the targeted 28-day compressive strength of 35 MPa. Result of modified concrete designation indicates that 10 and 15 percent addition of silica fume batches stated the 28-day average compressive strength of 38.28 MPa and 40.66 MPa, significantly higher compared to control mix. However, the 5% added silica fume concrete batch showed unobvious increase in compressive strength with 35.62 MPa
format Thesis
author Ahmad, Afham Zulhusmi
author_facet Ahmad, Afham Zulhusmi
author_sort Ahmad, Afham Zulhusmi
title Utilizing silica fume for development of concrete strength
title_short Utilizing silica fume for development of concrete strength
title_full Utilizing silica fume for development of concrete strength
title_fullStr Utilizing silica fume for development of concrete strength
title_full_unstemmed Utilizing silica fume for development of concrete strength
title_sort utilizing silica fume for development of concrete strength
publishDate 2013
url http://eprints.utm.my/id/eprint/42040/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:76224?queryType=vitalDismax&query=Utilizing+silica+fume+for+development+of+concrete+strength
_version_ 1643650782347657216
score 13.211869

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