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Investigation of fiber reinforced ferrocement composites in retrofitting reinforced concrete beams
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TitleInfo
Title
Investigation of fiber reinforced ferrocement composites in retrofitting reinforced concrete beams
Name
(type = personal)
NamePart
(type = family)
Haddad
NamePart
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Elie I.
NamePart
(type = date)
1993-
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Elie I. Haddad
Role
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(authority = RULIB)
author
Name
(type = personal)
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(type = family)
Nassif
NamePart
(type = given)
Hani H
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Hani H Nassif
Affiliation
Advisory Committee
Role
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(authority = RULIB)
chair
Name
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NamePart
Rutgers University
Role
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degree grantor
Name
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School of Graduate Studies
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school
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Text
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theses
OriginInfo
DateCreated
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2018
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2018-10
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2018
Place
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(type = code)
xx
Language
LanguageTerm
(authority = ISO639-2b);
(type = code)
eng
Abstract
(type = abstract)
Reinforced concrete bridge decks tend to deteriorate over time due to the increase in live load and corrosion of reinforcement and many other reasons. Economic factors do not allow for a complete replacement of such structures which validates the importance of concrete rehabilitation technologies. With the launch of high performance materials, the use of cementitious composites for infrastructure application for rehabilitation has become more common. Ferrocement application for bridge decks repairs is inexpensive and can extend the life of the bridge by 5 to 10 years.
This study presents the results of an experimental research performed to investigate the behavior of damaged reinforced concrete beams repaired with fiber reinforced ferrocement laminate. The ferrocement layer acts as a replacement to a damaged or peeled off clear cover. A total of 30 beams were tested under two point loading system up to failure. The research work discusses the effect of; the number and type of reinforcement in the laminate, and the incorporation of macro polypropylene fibers at different volume in the mortar used for the repair layer. The beams differed by their reinforcement ratios in the ferrocement laminate, thickness of the lamniate, size and number of shear studs which act as a bond between the two layers. All beams are designed to fail in flexure.
Results showed that the beams tested had noticeable improvement in terms of ductility, cracking strength (163%) and ultimate capacity (109%). The results also showed the material properties of multiple mortar mixes that were considered to be used for the fabrication of the repair layers. These mixes differed by their cementitious components, fibers content, and other parameters that will be discussed later on are in the study.
This study presents the results of an experimental research performed to investigate the behavior of damaged reinforced concrete beams repaired with fiber reinforced ferrocement laminate. The ferrocement layer acts as a replacement to a damaged or peeled off clear cover. A total of 30 beams were tested under two point loading system up to failure. The research work discusses the effect of; the number and type of reinforcement in the laminate, and the incorporation of macro polypropylene fibers at different volume in the mortar used for the repair layer. The beams differed by their reinforcement ratios in the ferrocement laminate, thickness of the lamniate, size and number of shear studs which act as a bond between the two layers. All beams are designed to fail in flexure.
Results showed that the beams tested had noticeable improvement in terms of ductility, cracking strength (163%) and ultimate capacity (109%). The results also showed the material properties of multiple mortar mixes that were considered to be used for the fabrication of the repair layers. These mixes differed by their cementitious components, fibers content, and other parameters that will be discussed later on are in the study.
Subject
(authority = RUETD)
Topic
Civil and Environmental Engineering
Subject
(authority = ETD-LCSH)
Topic
Reinforced concrete
Subject
(authority = ETD-LCSH)
Topic
Concrete beams
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Rutgers University Electronic Theses and Dissertations
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ETD_9325
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electronic resource
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application/pdf
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text/xml
Extent
1 online resource (77 pages) : illustrations
Note
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M.S.
Note
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Includes bibliographical references
Note
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by Elie I. Haddad
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Title
School of Graduate Studies Electronic Theses and Dissertations
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rucore10001600001
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NjNbRU
Identifier
(type = doi)
doi:10.7282/t3-qpw6-n498
Genre
(authority = ExL-Esploro)
ETD graduate
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Rights
RightsDeclaration
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The author owns the copyright to this work.
RightsHolder
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Name
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Haddad
GivenName
Elie
Role
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Permission or license
DateTime
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2018-10-03 04:04:48
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Name
Elie Haddad
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Rutgers University. School of Graduate Studies
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Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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Embargo
DateTime
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2018-10-31
DateTime
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2020-10-30
Detail
Access to this PDF has been restricted at the author's request. It will be publicly available after October 30th, 2020.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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ETD
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windows xp
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2018-10-09T14:56:43
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2018-10-09T14:56:43
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