This AAPA national model specification is intended as a guide for asset owners in the creation of technical specifications for the supply sprayed seal solutions for airports. One and two coat seals and reseals are included, with nominal 7 mm, 10 mm and 14 mm crushed rock cover aggregate. The airport seal designs must be validated or adjusted during the seal construction trial process. Therefore, the binder spray rates and aggregate spread rates contained in this specification are indicative or preliminary and are provided for the purposes of tendering and to provide a starting point for the seal construction trial.
The information in this model specification are based on best current practice and on years of experience with the supply of sprayed seal surfaces for airports in Australia