RESULTS OF A SURVEY ON THE USE OF RAPID-SETTING REPAIR MATERIALS. INTERIM REPORT

The report summarizes the current state-of-the-art for rapid-setting materials used to repair concrete in Texas and selected other states. Typical specifications used for rapid-setting materials by the Materials and Tests Division (D-9) are included, and a summary of D-9 test results is given. Districts were surveyed for a listing of rapid-setting materials they have used over the past 10 years. Twenty-seven materials were reported. The districts also provided an evaluation of the materials based on their use in different types of repairs, cost, use in different climatic conditions, durability, bond to concrete, and appearance. Nine states were asked to provide the same information requested of districts; eight responses were received. Districts and states were also asked to provide a ranking of material characteristics and properties.