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MetaMax®

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High Reactivity Metakaolin

A concrete building

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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Product Features
  • High reactivity metakaolin, pozzolanic
  • Bright white appearance
  • Manufactured to precise specification, designed to exceed requirements of Class N pozzolans (ASTM C-618)
  • Ultrafine particle size distribution
Product Benefits
  • Improves overall concrete quality by reducing porosity to make concrete stronger and denser
  • Reduces efflorescence, alkali-silica reactions and corrosion
  • Improves cohesion and is less likely to bleed vs normal concrete
  • Can be placed finished and cured in the same way as normal concrete
  • More workable texture improves trowelling, making it easier to spread and finish
  • Consistent quality batch-to-batch
  • Lower water demand than silica fume
Typical Applications
  • Architectual concrete
  • Cast-in-place and precast concrete
  • High-performance concrete
  • Plater and stucco
  • Grouts and mortars
  • Spray applied concrete
  • Pavers
  • Oil well cements

Featured grades with technical datasheets

A brief overview of the key grades with their Technical Datasheets (TDS) is given below.

If you are looking for a Safety Datasheet (SDS), Product Safety Information (PSI) or an alternate grade, then please get in touch or request a sample.

Key points at a glance:

  • Median particle size of 1.3 µm
  • GE Brightness of 85%
  • Slightly acidic pH of 6
  • High reactivity metakaolin pozzolan
  • Designed for use in a range of concrete applications including precast, ready mix, manufactured concrete products, and plaster.
download MetaMax® Technical Datasheet 98 KB