SUMMARY OF TEST RESULTS

COMPARING KALMATRON® KF-A AND SILICA FUME

CONDUCTED AT UNIVERSITY OF TECHNOLOGY SYDNEY

The following is a summary of comparison testing between Kalmatron® KF-A and Silica Fume, conducted over a 91 day period by Dr. Steve Bakoss at the University of Technology, Sydney, Australia.

COMPARATIVE PARAMETER	KALMATRON® KF-A	SILICA FUME	NOTES
Dosage per 1 mł	5 kg/mł	40 kg/mł
Additional admixtures needed	None	“Pozzolith 370” “Rheobuild 1000”	Concrete mix with Silica Fume needs additional admixtures
Slump 10 minutes	33mm	70mm
Workability	9 seconds	12 seconds	“Vebe” test
Cementitious volume	95%	70%	By core temperatures
Density at 28 days	2,470 kg/mł	2,420 kg/mł
Compressive strength 1^st day 28^th day 56^th day 91^st day	19.7 Mpa = 2900 psi 57.9 Mpa = 8400 psi 58.4 Mpa = 8500 psi 62.1 Mpa = 9000psi	13.3 Mpa = 1900 psi 56.9 Mpa = 8200 psi 68.4 Mpa= 9900 psi 63.6 Mpa = 9200 psi	After 56 days, Silica Fume lost 9% of strength – degradation continues.
Flexural strength 14 days 91 days	6 Mpa 7.2 Mpa	4.7 Mpa 7.2 Mpa
Shrinkage 28 days 56 days 119 days	257 microstrain 310 microstrain 320 microstrain	466 microstrain 653 microstrain 745 microstrain
Chloride permeability	Equal to high aluminum concrete	In accordance with properties of concrete	By electric conduct
15% Sulphuric Acid attack at 42^nd day	25%	43%	By weight loss
15% Hydrochloric Acid attack at 42^nd day	7%	9.5%	By weight loss
15% Orthophosphoric Acid attack at 42^nd day	2.5%	4.5%	By weight loss
15% Nitric Acid attack at 42^nd day	8.8%	10.3%	By weight loss
15% Sugar Solution attack at 42^nd day	0.1%	0.35%	By weight loss
Liquid impermeability	W10 to W16	N/A	Additional source of test results

CONCLUSION

Kalmatron® KF-A is a good replacement for Silica Fume.

The complete test results booklet is available upon request (approximately 50 pages).

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SUMMARY OF TEST RESULTS

KALMATRON® KF-A

SILICA FUME

NOTES

CONCLUSION