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ULTRA GUARD,
INTERNAL ASTM TEST METHOD
The following is a summary of
in-house tests that were conducted according to the test methods
identified. They demonstrate the tremendous ability of the ULTRA
GUARD to act and perform as a very efficient deep penetrating
sealer in the marketplace.
- ASTM C67-75 Sampling and
Testing Brick and Structural Clay Tile, Section 10,
Efflorescence. (Testing for Efflorescence Reduction)
Results: Specimens
treated with either one or two applications of ULTRA GUARD
reduced efflorescence in a test climate specifically
intended to force the conditions. Untreated control
specimens not only effloresced but also leached badly. Thus,
the use of ULTRA GUARD can reduce or eliminate efflorescence and
leaching in concrete.
- United States Army Corps
of Engineers Test Method CRD-52-54 Testing for Abrasion
Resistance (Chemical Floor Hardening)
Results: All ULTRA
GUARD
treated specimens showed an increase in abrasion resistance.
The specimens, which received ideal (ASTM moist cabinet)
curing, displayed minor improvement. The treated specimens
which stimulated actual field curing (50% RH, 70 degrees F),
displayed dramatic improvement when applied to both fresh
and mature concrete.
- ASTM C666-84, Resistance
of Concrete to Rapid Freezing and Thawing (Testing for
Freeze/Thaw Cycling Damage)
Results: The final
results demonstrated a loss of 4.8% of the original mass for
the untreated control specimen. The ULTRA GUARD treated specimen
lost only 0.7%. The treated specimen thus achieved a degree
of improvement that is 7 times the efficiency of the
untreated concrete to withstand freeze/thaw cycling damage.
Although these tests do not relate to actual service
conditions, they are relative measure of performance.
- FHWA No. RD 77-85 Testing
for Chloride Ion Intrusion Resistance
Results: The ULTRA
GUARD treatment was efficacious in reducing the intrusion of
chloride ion into the specimens. While the ion concentration
was increased somewhat at all 3 test depths in the treated
specimens, (¼", ½" and ¾") the steep incline in
concentration of the untreated specimen is strong evidence
of an advancing chloride front. The test results indicated
that ULTRA GUARD can be used effectively to reduce
chloride intrusion in hardened concrete.
- United States Army Corps
of Engineers CRD c-48-73, Testing for Hydrostatic
Pressure Resistance
Results: The ULTRA
GUARD
treatment sealed all specimens up to the 45 psi level, the
equivalent of 155 ft of standing water. It demonstrated its
effectiveness as a negative side waterproofer for most below
grade applications where leakage through concrete, (not
cracks) is a problem.
- Test Variation of the
Technique used for Film-Forming Compounds. Testing for
Water Vapour Emissions Reduction
Results: The four
ULTRA GUARD treated specimens showed an average increase in weight
of 1.08 grams. The untreated specimens tested an average
weight increase of 2.27 grams. The treated specimens
displayed an average of 47.5 vapour emission reduction with
a range of 43% to 54% reduction. This demonstrated very
effectively that ULTRA GUARD is an effective barrier (without
loss of breathability) of water vapour emission through
concrete.
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