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Kaolins can be used for cement & concrete applications as fillers or reactive constituents. BURGESS NO. 20 is a simple filler and rheological modifier to improve texture and trowelability. BURGESS OPTIPOZZ is a reactive metakaolin that converts free calcium hydroxide given off as a byproduct of the portland gel cement phase to a cementitious particle itself, improving the final cement strength, flex, chemical and soil resistance, as well as reducing shrinkage and cracking.
Due to its chemical composition, and as a result of a unique heat treatment process, BURGESS OPTIPOZZ is a highly reactive metakaolin that is categorized as a Class N Pozzolan. The term “highly reactive” means that BURGESS OPTIPOZZ metakaolin is available to react with the free lime produced as a result of the Portland cement.
By utilizing BURGESS OPTIPOZZ metakaolin in a cementitious mix design, the working characteristics of wet concrete and finished properties of cured concrete are significantly improved.
By replacing 10% – 20% of the weight of cement in the mix design, BURGESS OPTIPOZZ will significantly reduce efflorescence.
OPTIPOZZ is used to: