CATEXOL 2000 R.H.E. is a unique, next generation, non-chloride accelerating admixture for concrete. In laboratory and field evaluations against the major competitive non-chloride accelerators, CATEXOL 2000 R.H.E. has demonstrated unsurpassed acceleration of setting time and strength over a wide range of cold weather temperatures and dosages. With adequate protection, concrete containing CATEXOL 2000 R.H.E. can be placed in subfreezing temperatures with superior rate-of-set and compressive strength results. Field evaluations must be conducted in order to determine that CATEXOL 2000 R.H.E. dosage necessary in order to meet rate-of-set and strength development requirements. Field evaluations should address the minimum acceptable ambient and concrete temperatures considering your concrete components, jobsite conditions, and the level and length of protective measures.