System-K is an improved cement system combining the advantages of shrinkage-compensating cement with fiber reinforcement technology. The new synthetic K-Fiber, along with expansive cement and a plasticizer, eliminates the need for rebar, saw-cutting, and joint filling. It allows contractors to create joint spacing up to 150 feet, with no cracks and no curling. CTS Cement Manufacturing Corp., 800-929-3030, .