U.S. ARMY CORPS OF ENGINEERS:
#1 RATED STRUCTURAL CONCRETE REPAIR MATERIAL The U.S. Army Corps of Engineers performed extensive testing on a number of commonly used concrete repair materials. The ensuing report was Technical Report REMR-CS-62. This is a quick summary by Stonhard / Five Star of the Corps of Engineers 71 page report. “The principal objective of this study was to develop performance criteria for the selection of cement-based repair materials that, in otherwise equal conditions, will lead to durable and cost-effective concrete repairs.” The report states,“Under current practice, there is no guidance to the selection of repair materials for intended use, just as there are no performance criteria for the selection of repair materials dimensionally compatible with the existing structure.” “Current emphasis in the specification of repair materials is on the relatively short-term properties such as strength, bond, and early volume changes. Although these properties indicate immediate performance of the repair, they give little information with respect to its long-term performance with respect to cracking and efficient composite action with the substrate to carry applied loads and deformations.” Twelve different cementitious repair materials from various manufacturers were selected for testing, including Five Star Structural Concrete. Laboratory and field testing was performed on all materials. Field testing was carried out in three areas located in South Florida, Illinois and Arizona to provide a wide variation in exposure conditions. The materials were ranked for field performance results based on cracking, German Angle Test, and SPS Plate Field Tests. In this ranking, Five Star Structural Concrete was rated #1.
Independent testing has rated Five Star Structural Concrete as the best choice for field repairs of concrete
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