This study was conducted to evaluate the performance of rapid-hardening roller-compacted concrete containing styrene butadiene latex. This material has no slump and is compacted with a roller after being poured. Volume reduction is not a concern and the material has a high initial strength due to the high pressure applied. Latex improves the durability of ultra-rapid-hardening cement composites. This study evaluated the performance of an optimum mixture (L) and a mixture with no styrene buta-diene latex (NL), which had almost the same workability as the optimum mixture. The L mixture exhibited better performance than the NL mixture in terms of bond strength and chloride ion permeability, as well as resistance to abrasion, repeated freezing and thawing, and scaling. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 121: 196-201, 2011