Undertakers primarily adopt hand laying operations in their reinstatements, rather than machine laying operations associated with new-build and larger surface area situations, i.e. relatively unconfined areas. In addition to the final compaction of asphalt layers, hand laying operations also include on-site transportation and handling of the asphalt materials.
Materials in this appendix are predominantly for hand laying operations. Some asphalts incorporating highly modified polymer modified binders (PMBs) may not be suitable for hand-laying and should only be used by agreement. Clause 943 HRA incorporating PMB must not be hand-laid.
In small openings and narrow trenches, the preferred binder course mixture may be replaced by any surface course mixture that complies with this Code for the respective road type provided that the same mixture is used in the surface course, see S6.5.
In all excavations, the preferred binder course mixture may be replaced by any surface course mixture that complies with this appendix and S8. This substitution is limited solely to the binder course layer. Void contents must meet the requirements of Table S10.1 for footpaths.