The use of citric acid as a
Set Control™ retarder when used in conjunction
with Dow Modifier A Latex and Rapid Set®
Cement in the production of RSLMC (Rapid Set®
Latex Modified Concrete.) CTS Cement Mfg.
Co. and Dow Chemical Co. recommend the use
of citric acid (USP grade) as a Set Control™
Admixture in RSLMC when mix temperatures rise
above 70° F to increase the time for workability.
The combination of Dow Latex, Rapid Set®
Cement and citric acid as a Set Control™
retarder had been used on many projects in
states that utilize RSLMC. The amount of retarder
needed is dependent on the RSLMC mix temperature
and should be adjusted according to jobsite
conditions.
SET CONTROL®
Solution Formulation and Addition Rate
Chart
Ounces
DOSAGE OF SOLUTION REQUIRED PER 94 POUNDS
OF CEMENT
 |
Solution 1(46%) 7.0-lb / gal
of water |
 |
Solution 2(36%) 4.7-lb / gal
of water |
 |
Solution 3(23%) 2.5-lb / gal
of water |
 |
Solution 4(19%) 2.0-lb / gal
of water |
 |
Solution 5(17%) 1.7-lb / gal
of water |
 |
Solution 6(11%) 1.0-lb / gal
of water |
|
