Published: January 2024 | Category: Construction , Asphalt , Specifications | Audiences: Civil engineering laboratories, Road traffic engineers & consultants, Roading contractors
This specification and guidance notes describe the required properties of open graded porous asphalt for use as a surfacing course for road pavements. This mix type is intended to be used as a surfacing where there is a requirement for texture depth, noise reduction and /or splash and spray suppression.
The specification covers both bitumen-bound and epoxy-modified bitumen bound porous asphalt mixes.
See also:
NZTA T21 Test methods for epoxy modified open-graded porous asphalt
