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Zeolite-based additives for high alumina cement products

โœ Scribed by Yan Fu; Jian Ding; J.J. Beaudoin


Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
516 KB
Volume
3
Category
Article
ISSN
1065-7355

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โœฆ Synopsis


Use of zeolites as conversion-preventing additives (CPA) for inhibition of hydrogarnet formation in high alumina cement (HAC)

products is reported. Compressive strength development of HAC mortars containing the CPA additive was studied. The effect of curing conditions, from low initial temperatures to final high temperatures, on strength development was also investigated. X-ray diffraction (XRD) analysis was used to identify the hydration products in the HAC paste containing CPA. No strength reduction occurred for the HAC mortar (containing 12% CPA by mass of HAC) water-cured at 38ยฐC. Strfilingite preferentially formed in the HAC paste containing the CPA additive. Little or no hydrogarnet phase in the paste was detected by XRD analysis.


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