High Reactivity Metakaolin
Product Overview
MetaMax® enhances the strength, durability, workability and appearance of Portland cement-based products and concrete. It is high-reactivity metakaolin (HRM) pozzolan produced by the thermal activation of high-purity kaolin clay within a specific temperature range. Metamax® is a high-purity white mineral admixture that meets or exceeds all of the specifications of ASTM C-618 Class N pozzolans. MetaMax® reacts with free lime produced during the hydration of cement and produces additional cementitious material. Unlike other pozzolanic materials such as silica fume, fly ash and blast-furnace slag, MetaMax® is not a by-product but is manufactured to exact specifications in order to maintain high whiteness, high reactivity, ultrafine particle size distribution and consistency.
This product also improves the colouration of the cement and enhances the workability of the wet mix, by giving a creamier paste - resulting in higher-quality finishes with fewer surface defects. MetaMax® is an excellent replacement for silica fume, where performance is improved due to less stickiness in the paste and purer colour.
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