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dc.contributor.advisorKevern, John T., advisoreng
dc.contributor.authorCao, Qiweieng
dc.date.issued2012-08-17eng
dc.date.submitted2012 Summereng
dc.descriptionTitle from PDF of title page, viewed on August 17, 2012eng
dc.descriptionThesis advisor: John T. Keverneng
dc.descriptionVitaeng
dc.descriptionIncludes bibliographic references (p. 64-66)eng
dc.descriptionThesis (M.S.)--School of Computing and Engineering. University of Missouri--Kansas City, 2012eng
dc.description.abstractReducing cement clinker with mineral addition has been considered an efficient way of saving energy, lowering CO2 footprint of cement and concrete industries. The trend of using limestone as mineral addition in cement production started in 1992s. Cement containing limestone additions up 35% have been used in European countries adopting the European Standard EN 197. Similar standards have been developed, such as Canadian Standard, CSA A3000, which has approved the limestone addition from 5% up to 15% by mass. In U.S., ASTM standard C595 for Portland blended cement needs to be changed to have a significant impact on sustainability. This research tested concrete fresh properties, strength development and durability properties made using different types of blended cement, a series of limestone addition rates, which changed from 5% to 18% by mass, and a series of ternary mixtures with limestone and fly ash combination at 20% replacement rate. Concrete mixtures using a type I/II cement was used as a baseline for comparison. Results showed that limestone addition decreased concrete workability while fly ash addition in ternary mixtures improved workability. Concrete made using cement with limestone addition showed improved early age strength. Fly ash addition in ternary mixtures showed lower early age strengths. Mortars with limestone addition to 18% and ternary mixtures showed no statistically significant difference on volume stability comparing to the control group which were prepared using ordinary Portland cement. Blended cement with limestone addition has less length changes when exposed to sulfates. Limestone additions up to 18% by mass showed improvement for sulfate resistance. The ternary mixtures also showed sulfate resistance improvement. Concrete permeability increased with increasing limestone addition. Fly ash showed significant decrease in permeability. Concrete freezethaw resistance is strongly related with air content. Limestone addition rates up to 18% had freeze-thaw resistance decreased. Results showed that the properties of blended cement such as particle size distribution, the quality and quantity of mineral addition can affect concrete fresh properties, harden properties and durability. Blend cement with limestone addition rate up to 18% have no significant negative effect on concrete performance.eng
dc.description.tableofcontentsIntroduction -- Literature review -- Materials and mixture designs -- Test methods -- Results and discussion -- Conclusioneng
dc.format.extentxii, 67 pageseng
dc.identifier.urihttp://hdl.handle.net/10355/14832eng
dc.publisherUniversity of Missouri--Kansas Cityeng
dc.subject.lcshCement clinkerseng
dc.subject.lcshCement -- Additiveseng
dc.subject.otherThesis -- University of Missouri--Kansas City -- Engineeringeng
dc.titleInvestigation into lowering cement clinker content using available materialseng
dc.typeThesiseng
thesis.degree.disciplineCivil Engineering (UMKC)eng
thesis.degree.grantorUniversity of Missouri--Kansas Cityeng
thesis.degree.levelMasterseng
thesis.degree.nameM.S.eng


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