Basic Characteristics of Grancrete HFR

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dc.contributor.advisor Michael Leming, Committee Member en_US
dc.contributor.advisor Sami Rizkalla, Committee Chair en_US
dc.contributor.advisor Paul Zia, Committee Member en_US Montesdeoca, Oscar Fabricio en_US 2010-04-02T18:13:27Z 2010-04-02T18:13:27Z 2009-03-01 en_US
dc.identifier.other etd-10312008-153239 en_US
dc.description.abstract Grancreteâ„¢ is a novel cementitious material originally developed at Argonne National Laboratories and consist of a family of magnesium phosphate cement (MPC) products. The objective of this thesis is to examine the basic characteristics of one type of Grancrete named Grancrete HFR (High Fire Resistant) which is basically a Fiber-Reinforced Magnesium Potassium Phospho-Silicate Cement. The research program included a comprehensive experimental program to evaluate the fundamental properties of the fresh mixture of Grancrete HFR paste, the mechanical properties of the hardened Grancrete HFR paste, and the bond characteristics of Grancrete HFR paste to selected construction materials. The reaction of Grancrete HFR powder and water is exothermic. Test results indicate that the setting time of Grancrete HFR paste is less than 10 minutes, and the pH level of the fresh paste is close to 7. Typical values of Compressive Strength of the paste at 28 days range between 6,000 to 10,000 psi, and more than 50% of this strength was achieved within the first 24 hours of air curing. The measured ultimate strain ranges between 0.006 and 0.008. The Modulus of Elasticity is between 1650 and 1950 ksi. The Modulus of Rupture is approximately 1,100 psi and can be achieved after 3 days of air curing. Water absorption is less than 2%. The linear shrinkage is around 0.30%. Grancrete HFR has excellent bond strengths with itself, concrete and steel. en_US
dc.rights I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dis sertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. en_US
dc.subject MPC en_US
dc.subject Grancrete en_US
dc.title Basic Characteristics of Grancrete HFR en_US MS en_US thesis en_US Civil Engineering en_US

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