10.103 – PARTICLE SIZE DISTRIBUTION (PSD)
High Reactivity Metakaolin (HRM)
Engineered iMineral Admixture for Use with Portland Cement
Advanced Cement Technologies’ PowerPozzTM HRM is a manufactured pozzolanic mineral admixture which significantly enhances many performance characteristics of cement-based mortars, concretes, and related products.
PowerPozzTM, derived from purified kaolin clay, is a white, amorphous, alumino-silicate which reacts aggressively with calcium hydroxide to form compounds with cementitious value.
Produced under ISO 9002, PowerPozzTM is subjected to strict process quality controls to assure product uniformity and consistent performance.
Used at 5-15% replacement of cement by weight, PowerPozzTM will contribute to: increased strength; reduced permeability; greater durability; and effective control of efflorescence and degradations caused by alkali-silica reaction (ASR) in concrete.
PowerPozzTM is milled and classified to exacting particle size distribution specifications.
In optimizing the PSD for PowerPozzTM, a number of factors were considered to be important:
- Pozzolanic reactivity and rate of reaction
- Micropacking characteristics when used with Ordinary Portland Cement (OPC)
- Effect on water demand and /or water-reducing admixture demand
- Dispersion efficiency in batching and mixing processes
- Dry product handling and storage characteristics
- Effect on fresh product rheological characteristics
- Color, brightness, reflectivity
The PowerPozzTM PSD is illustrated below:
The material is 99.9% finer than 16um, and has a mean particle size of 3um (as measured by MicroTrac laser diffraction granulometer method). The PSD of PowerPozzTM has been engineered with a range of OPC – based applications in mind. ACT has the ability to custom grind and classify to meet unique customer requirements.
All information, while provided in good faith , with every effort made to assure accuracy, is provided by Advanced Cement Technologies at no charge, and without warranty–express or implied. Data given, unless otherwise stated, are based on standard testing procedures which are available on request. Variations do occur in individual tests and the results stated herein cannot be taken as minima or maxima for specification purposes.
As we cannot anticipate all possible applications of our products, nor variations in manufacturing equipment, formulae, methods, or practices, we guarantee only that the products will meet the specifications of Advanced Cement Technologies at the time of sale. Advanced Cement Technologies reserves the right to change specifications should it become necessary to do so. The products are sold without without express or implied warranty, with all warrantees of fitness of purpose being disclaimed, and on the condition that the purchaser is responsible for the determination of the product’s suitability for a particular purpose.
Statements concerning the possible use of our products are not intended as recommendations for use. No liability is accepted for any infringements of any existing or future patents.
All products sold, unless otherwise stated, will be subject to the general sales conditions of Advanced Cement Technologies.