Fast setting hydraulic cement should be manufactured by CTS Cement Manufacturing Company, Cypress, CA (800)929-3030. Material should be of recent manufacture (Within 1 year) and free from lumps.

Sand should be clean and conform to the requirements of ASTM C-33 for concrete sand.

Coarse aggregate should be clean, sound, crushed stone or gravel meeting the general requirements of AASHTO M 80. The maximum size particle should not be larger than 1/2 the depth of the section to be placed.

Latex emulsion should be DOW Modifier A as manufactured by DOW Chemical Company, Midland, MI (800)447-4369. Modifier A is a styrene butadiene polymeric emulsion. Stabilizers and an antifoam agent have been added at the point of manufacture. Emulsion should weigh approximately 8.5-lb per gallon.

Water used in the production of the Latex Modified Concrete should be clean and free from: salt, acid, oil, organic matter, or other substance injurious to the finished product.

Set Control® or Citric Acid (Food grade) can be used as a retarder to lengthen working time. Food grade Citric Acid should be dissolved into a solution with water. Solution should be added to the admixture tank, not containing latex emulsion, and dispensed as an admixture.