Development of a Rapid Set Epoxy Adhesive for California Highway Markers.

摘要

The development of a prototype rapid set epoxy adhesive to bond raised pavement markers to portland cement concrete and asphaltic concrete in California freeways and secondary roads was first reported in June 1969 as State Specification 68-F-44. Since then, four formula revisions have been made to improve adhesion and application characteristics. The use of a small amount of O-cresyl glycidyl ether as a reactive diluent in the A component and the use of resin grade asbestos in both components, have resulted in the required viscosity and thixotropy necessary for good application properties both at low temperatures and at high temperatures.