KALMATRON® KF-AEFFLORESCENCE Efflorescence is a
salt deposit on the surface of concrete. White deposits form because
of the reaction of Ca(OH)2 with CO2, which is
typical carbonation of concrete. For instance, when water percolates
through poorly compacted concrete; concrete with cracks or a highly
porous one; along poorly made joints, an evaporation takes place
from the surface of concrete. Especially harmful is concrete with a
superficial porous system, which is a straight indication of a high
slump 4” concrete mix design. Application of
KALMATRONÒ
KF-A (USA Patent #5,728,208) is the most advanced modifier of
concrete rheology. Because of the complete hydration and the
oxidation process, Kalmatron® gives higher cementitious value to the
cement grain with lower shrinkage and creates an orderly
capillary-porous system. Moreover, the exothermic temperature is
lower by up to 25% than for standard concrete mix. The result is concrete with greatly reduced shrinkage cracks
and efflorescence. ADAPTATION OF KALMATRONÒ KF-A FOR
CAST STONE CONCRETE MIX
To get the best result, mix a batch of concrete with KF-A even on a threshold of workability. Continue mixing until you obtain a creamy consistency. Do NOT pay attention to the slump. Do not apply any plasticizer or additional water. ADAPTATION OF KALMATRONÒ KF-A FOR
COATING EPS
We’d like to also propose our proven product KF-B, to be used as a coating (USA Patent # 5,728,428), which gives the best resistance to efflorescence. KF-B has a gray color after application. If it comes into contact with salted water, it will turn to dark blue. |
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