ECONOMIC EFFECTIVENESS OF
KALMATRON® KF-A
The economic effectiveness of concrete
admixtures is determined by the combination of the following
criteria: Ø Number and quantity of admixtures in concrete mixes to obtain desired results Ø Comparison of various characteristics in the concrete mix and the final structure through objective testing Ø Requirements for the curing of the concrete For purposes of illustration, we have compared two concrete admixtures: Kalmatron® KF-A Silica Fume We have test results for both of these products and in comparison to other admixtures on the market, these are the most advanced in terms of test characteristics. Additionally, Silica Fume currently has a significant market position. Finally, it is important to consider that every product has been developed for a particular purpose and is suitable for its targeted application. Technical
Performance of Based
on a concrete mix with a targeted compressive strength of 25 Mpa
*Silica Fume admixtures are known as
Supplementary Cementitious Materials, which create denser concrete
structures independently from the compacting aggregate and viscosity
of the cement dough. Cement
with these admixtures has been decayed by water hydration.
No other chemical reactions have occurred with the cement
grains. The chemical nature of the Kalmatron® KF-A admixtures acts as an oxidizer of micro-metal containing elements in the cement grains and other inorganic materials such as sand, fly ash, etc. Oxidization increases the hydration of cement through the molecular decay of unstable relationships between foreign inclusions and cement particles. This provides for complete hydration and increases the cementitious value of the cement. This is why concrete mixed with KF-A needs less water, yet can still provide high workability and low slump. The table below compares practical criteria at different stages for concrete mix made with Kalmatron® KF-A and Silica Fume.
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