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Buzzi unicem USA.

Ulti-Grout is a rapid hardening, sulfate resistant, general purpose grout that is easily mixed for grouting at various consistencies, allowing flexibility in the methodology of reinserting cores. This rapid hardening material utilizes Qwix, a hydraulic, cementitious mineral blend (ASTM C219), high in calcium sulfate aluminum crystals. Qwix blended with portland cement produces a modified type of Portland cement called Ultimax Cement. Ultimax Cement is a patented formula for a blended, hydraulic, non-shrink, high performance cement that exceeds the requirements of ASTM C-1157. Ulti-Grout develops strength faster than Portland-based grouts by a factor of 50 to 1.

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Publication:Underground Construction
Date:Feb 1, 2011
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