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TECHNICAL BULLETIN |
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| 10.103 - PARTICLE SIZE DISTRIBUTION (PSD) |
High
Reactivity Metakaolin (HRM)
Engineered
Mineral 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
10.103 - PARTICLE SIZE DISTRIBUTION (PSD)
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.
