KALMATRON® KF-A
U.S.A. Patent 5,728,208
KALMATRON® KF-A
is a powder admixture to concrete mixes. KF-A upgrades a regular concrete mix to High Performance Concrete.
How it works
KF-A reacts with cement, reducing cement grains from 100 µm to 10 µm during the first 20 minutes. This increases the
cement gel yield
and the volume of the cement rock
.
Completed cement hydration by KF-A makes it possible to completely replace
SILICA FUME
and
MICROCEMENTS
at a fraction of the cost.
KF-A is a cost‐effective way to transform a regular concrete batch to High Performance Concrete. For instance, concrete or mortar made with KF-A has
no shrinkage cracks, is
impermeable to any liquids, and doesn't require curing or membranes.
KF-A acts in four ways after being added to the concrete batch:
1. As a Water Reducer during mixing and pumping;
2. As a Plasticizer during transportation and placement;
3. As a Shrinkage controlling and Curing Compound during setting time;
4. As a Strength gainer and impermeability performing agent during hardening time;
5. As a rebar corrosion inhibitor during batching.
KF-A is safe for use with drinking water and food containing structures.
EXPECTED RESULTS
1. Highest volume of
cement hydration
completes concrete formation without curing.
No curing is required.
2. Exothermic heat is lower at 30% to 50%. There are no shrinkage cracks or slab curling. No fibers are required.
3. Yield of mixed batch is higher by 8% to 14% of cement gel. No water reducer or plasticizer required.
4. Water impermeability of plaster at ¾” thick and 2” of concrete thick is 100% respectively. No membrane is required.
5. Early strengthening at 1st to 3d days at 25%. No strength gainers and excessive rebar arming is required.
6. Highest resistance to chemica l and environmental corrosions due to complete hydration of cement.
7. Corrosion Inhibition meeting the requirements of ASTM C1582, which is added to concrete during the batching. It chemically inhibits the corrosive action of chlorides on reinforcing steel and prestressed strands in concrete.
8.Therefore, KF-A upgrades a regular concrete batch to High Performance Concrete .
Concrete Flow of the mix with KALMATRON® KF-A: low w/c, high workability.
Famous "Creamy Effect" with lower slump and high workability of concrete mix with KALMATRON® KF-A. With a slump of just 2.56" (6.50 cm), KF-A mixes are easily pumpable without clogs, and highly adhesive without sliding or shrinkage cracks.
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