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Test methods for epoxy modified open-graded porous asphalt

Published: | Category: Construction , Asphalt , Specifications | Audiences: Civil engineering laboratories, Road controlling authorities, Roading contractors

NZTA T21 Test methods for epoxy modified open-graded porous asphalt (version 1.0) sets out laboratory-based procedures to assess the quality of epoxy modified binders and the durability of epoxy modified open-graded porous asphalt mixes.

The areas covered by the specification include:

  • determination of the epoxy content of the asphalt binder by infra-red spectroscopy
  • determination of the epoxy content of the asphalt binder by fast neutron activation
  • assessment of the durability of epoxy bitumen formulations for approval.

NZTA T21 is a new document that standardises and publishes laboratory procedures in current use.

Short link to this page:
https://www.nzta.govt.nz/emogpatests(external link)

See also:
NZTA P11 Specification for open-graded porous asphalt

Publication details

  • Author:
  • Published: March 2024
  • Reference: NZTA T21
  • Version: 1.0
  • Contact: pavements@nzta.govt.nz
  • Conditions: Use of this procedure is mandated by NZTA P11 Specification for open-graded porous asphalt
  • Also known as: T/21