ANTI-STRIP AGENTS FOR CUTBACK ASPHALT
Anti-strip agents used in cutback asphalt shall be approved brands. Sources, approved brand names, and approved dosages are listed in Approved manufacturers and brands of asphalt anti-strip agents are listed in the Materials Approved Products Listing Enterprise (MAPLE).
Brand approval will be based on information supplied by the producer and the results of anti-stripping tests. Requests for approval shall be made to the Office of Materials in Ames, Iowa, and shall be accompanied by a sample of the anti-strip agent together with product information including brand name, recommended dosage, and instructions for use. Anti-strip testing shall be in accordance with Laboratory Test Method No. Iowa 629. The treatment shall be heat stable for 24 hours at 250°F (121°C).
The Office of Materials may sample and test anti-strip agents to verify results of the original approval.