The Carbo Detect System is available in Bulk discounts!
Carbo Detect™
Carbo Detect™ simple colored dye field test
for carbonation.
-
Test can be carried out completely on
site.
-
Gives depth of carbonation.
-
Minimal operator training and no special equipment required.
-
Utilizes only one environmentally safe dye.
-
Results obtained in less than five minutes are easy to
interpret.
-
Economic, fast and easy to use.
Field test to identify
Carbonation.
Carbo Detect™ is a simple colored dye
field test for detecting carbonation. The single reagent is sprayed on
the surface to be checked. The reagent will change to pink in
uncarbonated concrete and remain colorless when sprayed on carbonated
concrete.
Carbonation is one of the two main causes of corrosion of steel
in concrete, the other is chloride attack. The result of the
interaction of carbon dioxide gas in the atmosphere with the alkaline
hydroxides in the concrete, the carbonation process effectively drops
the pH of the concrete to a level where the steel will corrode. The
carbon dioxide dissolves in water to form carbonic acid, which can
migrate to the reinforcing steel if the concrete cover is low or if the
concrete is of poor quality (open pore structure, low cement content,
high water cement ratio, or poor curing of the concrete). Carbonation is
more common in old structures, particularly buildings.
Carbo Detect™
reagent is a type of pH indicator which will indicate the change of pH
on a freshly exposed concrete surface. The indicator is simply sprayed
on the surface to be checked. The indicator will change to pink in
uncarbonated concrete and remain colorless when sprayed on carbonated
(low pH) concrete. If the concrete test area is very dry, a light
misting with water will help show the color.
By spraying the indicator
along a core drilled from the top surface down to the reinforcement bar
it can be readily seen how far the carbonation has progressed and
therefore the outlook for corrosion, which will only occur after
carbonation reaches the reinforcement bar.
Care should be taken to
prevent drilling and coring dust from contaminating the surface to be
tested.
CB-6000 Test Kit
Downloadable MSDS Documents
