Use of hybrid Rice Husk Ash-Fly Ash mixtures as sustainable supplementary materials for concrete in the marine environment

Use of hybrid Rice Husk Ash-Fly Ash mixtures as sustainable supplementary materials for concrete in the marine environment

This paper presents the comparison of shrinkage and corrosion characteristics of optimized hybrid Rice Husk Ash (RHA)/Fly Ash (FA)-modified Concrete, with those of normal concrete in the marine environment. Uses of both FA and RHA have numerous environmental benefits. Shrinkage performance was deter...

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Bibliographic Details
Other Authors: Arboleda, Diana.
Format: Others
Language:English
Published: Florida Atlantic University
Subjects:
Fracture mechanics
Concrete > Additives > Testing
Fly ash > Testing
Concrete > Cracking > Prevention
Industrial minerals > Testing
Online Access:http://purl.flvc.org/FAU/2138109
id ndltd-fau.edu-oai-fau.digital.flvc.org-fau_3419
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spelling ndltd-fau.edu-oai-fau.digital.flvc.org-fau_34192019-07-04T03:51:19Z Use of hybrid Rice Husk Ash-Fly Ash mixtures as sustainable supplementary materials for concrete in the marine environment Arboleda, Diana. Text Electronic Thesis or Dissertation Florida Atlantic University English xi, 88 p. : ill. (some col.) electronic This paper presents the comparison of shrinkage and corrosion characteristics of optimized hybrid Rice Husk Ash (RHA)/Fly Ash (FA)-modified Concrete, with those of normal concrete in the marine environment. Uses of both FA and RHA have numerous environmental benefits. Shrinkage performance was determined by subjecting the mixes to restrained shrinkage testing per ASTM C1581. The time to cracking of the specimens improved an average of 18% with the hybrid mixes. Corrosion testing of reinforced columns was performed in a simulated tidal cycle Marine Environment. Corrosion potential improved by as much as 35% for the mix with the highest FA/RHA replacement, and corrosion activity as measured with potentiostat equipment improved by an average of 34% . These results indicate a clear performance improvement of the modified concrete that is proportional to the percent replacement of cement. by Diana Arboleda. Thesis (M.S.C.S.)--Florida Atlantic University, 2010 Includes bibliography. Electronic reproduction. Boca Raton, Fla., 2010. Mode of access: World Wide Web. Fracture mechanics Concrete--Additives--Testing Fly ash--Testing Concrete--Cracking--Prevention Industrial minerals--Testing http://purl.flvc.org/FAU/2138109 631723310 2138109 FADT2138109 fau:3419 College of Engineering and Computer Science Department of Civil, Environmental and Geomatics Engineering http://rightsstatements.org/vocab/InC/1.0/ https://fau.digital.flvc.org/islandora/object/fau%3A3419/datastream/TN/view/Use%20of%20hybrid%20Rice%20Husk%20Ash-Fly%20Ash%20mixtures%20as%20sustainable%20supplementary%20materials%20for%20concrete%20in%20the%20marine%20environment.jpg
collection NDLTD
language English
format Others
sources NDLTD
topic Fracture mechanics
Concrete--Additives--Testing
Fly ash--Testing
Concrete--Cracking--Prevention
Industrial minerals--Testing
spellingShingle Fracture mechanics
Concrete--Additives--Testing
Fly ash--Testing
Concrete--Cracking--Prevention
Industrial minerals--Testing
Use of hybrid Rice Husk Ash-Fly Ash mixtures as sustainable supplementary materials for concrete in the marine environment
description This paper presents the comparison of shrinkage and corrosion characteristics of optimized hybrid Rice Husk Ash (RHA)/Fly Ash (FA)-modified Concrete, with those of normal concrete in the marine environment. Uses of both FA and RHA have numerous environmental benefits. Shrinkage performance was determined by subjecting the mixes to restrained shrinkage testing per ASTM C1581. The time to cracking of the specimens improved an average of 18% with the hybrid mixes. Corrosion testing of reinforced columns was performed in a simulated tidal cycle Marine Environment. Corrosion potential improved by as much as 35% for the mix with the highest FA/RHA replacement, and corrosion activity as measured with potentiostat equipment improved by an average of 34% . These results indicate a clear performance improvement of the modified concrete that is proportional to the percent replacement of cement. === by Diana Arboleda. === Thesis (M.S.C.S.)--Florida Atlantic University, 2010 === Includes bibliography. === Electronic reproduction. Boca Raton, Fla., 2010. Mode of access: World Wide Web.
author2 Arboleda, Diana.
author_facet Arboleda, Diana.
title Use of hybrid Rice Husk Ash-Fly Ash mixtures as sustainable supplementary materials for concrete in the marine environment
title_short Use of hybrid Rice Husk Ash-Fly Ash mixtures as sustainable supplementary materials for concrete in the marine environment
title_full Use of hybrid Rice Husk Ash-Fly Ash mixtures as sustainable supplementary materials for concrete in the marine environment
title_fullStr Use of hybrid Rice Husk Ash-Fly Ash mixtures as sustainable supplementary materials for concrete in the marine environment
title_full_unstemmed Use of hybrid Rice Husk Ash-Fly Ash mixtures as sustainable supplementary materials for concrete in the marine environment
title_sort use of hybrid rice husk ash-fly ash mixtures as sustainable supplementary materials for concrete in the marine environment
publisher Florida Atlantic University
url http://purl.flvc.org/FAU/2138109
_version_ 1719218866067865600

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