Hot rolled asphalt (HRA) mixtures (A2.1)

A2.1.1: All HRA must conform to BS EN 13108-4. Conformity must be established in accordance with BS EN 13108-20 and BS EN 13108-21. Natural gravels are not permitted as coarse aggregate for use in Types 0, 1 and 2 roads.
A2.1.2: Deformation resistance must comply with the limiting wheel tracking requirements for site classifications in accordance with PD6691 Appendix C, Table C.3.
A2.1.3: Design Type C mixtures listed in this section may only be used by agreement where satisfactory local experience has been gained in their use.