Durability of residential concrete using fly ash with a high alkali-sulfate content

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dc.contributor.advisorThomas, Michael
dc.contributor.authorOwens, Tanya
dc.date.accessioned2023-03-01T16:51:31Z
dc.date.available2023-03-01T16:51:31Z
dc.date.issued2014
dc.date.updated2016-11-01T00:00:00Z
dc.description.abstractThis project represents research performed to determine if Popcorn Calcite Deposition (PCD) occurs in residential concrete (i.e. concrete with relatively high water-to- cement ratio) produced with Ordinary Portland Cement (OPC) and fly ash with varying sulfate and alkali contents and if found, what is its affect on both mechanical strength and mass transport properties? Paste, mortar and concrete samples were cast with varying water to cementitious material ratio (W/CM) between 0.5 and 0.9 and were tested to determine the effect of carbonation on a wide range of properties. Carbonation in fly ash samples was shown to decrease the connectivity of calcium bearing phase, with it worsening as the W/CM increased. It was also observed carbonated fly ash samples underwent pore coarsening with this being more evident in samples made with high sulfate high alkali fly ash.
dc.description.copyrightNot available for use outside of the University of New Brunswick
dc.description.noteElectronic Only. (UNB thesis number) Thesis 9376. (OCoLC) 961804671.
dc.description.noteM.Sc.E., University of New Brunswick, Department of Civil Engineering, 2014.
dc.formattext/xml
dc.format.extentx, 126 pages
dc.format.mediumelectronic
dc.identifier.oclc(OCoLC) 961804671
dc.identifier.otherThesis 9376
dc.identifier.urihttps://unbscholar.lib.unb.ca/handle/1882/14578
dc.language.isoen_CA
dc.publisherUniversity of New Brunswick
dc.rightshttp://purl.org/coar/access_right/c_abf2
dc.subject.disciplineCivil Engineering
dc.subject.lcshConcrete--Sampling.
dc.subject.lcshConcrete--Testing.
dc.subject.lcshConcrete--Corrosion.
dc.subject.lcshFly ash.
dc.titleDurability of residential concrete using fly ash with a high alkali-sulfate content
dc.typemaster thesis
thesis.degree.disciplineCivil Engineering
thesis.degree.fullnameMaster of Science in Engineering
thesis.degree.grantorUniversity of New Brunswick
thesis.degree.levelmasters
thesis.degree.nameM.Sc.E.

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