Road surfacing standards
These standards set out the requirements for road surfacing on Northern Territory (NT) controlled roads and civil infrastructure.
Technical standards
- Bituminous surfacing works treatment and selection - Technical directive PDF (665.0 KB)
- Road pavement acceptance during construction - Guide note PDF (2.9 MB)
- Approval of aggregates for spray sealing purposes - Technical directive and approval register PDF (687.5 KB)
- Design of sprayed seals - Technical directive PDF (902.9 KB)
- Sealing under and around safety barriers - Technical directive PDF (532.2 KB)
Bituminous rise and fall
- Bituminous products - Rise and fall calculations – Industry update PDF (173.9 KB)
- Rise and fall calculation XLSX (39.7 KB)
Asphalt mix design register
Applications to register an asphalt mix must be submitted to the Department of Infrastructure, Planning and Logistics.
To apply, read the registration of asphalt mix designs - Technical directive PDF (879.3 KB)
Below are the approved asphalt mixes in the NT.
| Registration number | Asphalt supplier | Suppliers reference | Region | Mix type | Registration date | Registration expiry |
|---|---|---|---|---|---|---|
| NT-RAMD - 2019-005 | Fulton Hogan | 151 | Darwin | Type 5 | 9/11/2021 | 9/11/2023 |
| NT-RAMD - 2022-006 | Fulton Hogan | 152 | Darwin | Type 4 | 18/07/2022 | 18/07/2024 |
| NT-RAMD - 2023-007 | Fulton Hogan | 154 | Darwin | Type 2 (A15E) | 16/02/2023 | 16/02/2025 |
| NT-RAMD - 2023-008 | Fulton Hogan | AC 10 Type 2 – C320 | Darwin | Type 2 (C320) | 16/02/2023 | 16/02/2025 |
| NT-RAMD - 2022-016 | Downer |
Type 5 - AC14 A15E Mix Design Type 5 QLD22-0241 | Darwin | Type 5 | 18/10/2022 | 18/10/2024 |
| NT-RAMD - 2022-017 | Downer |
NT Type 4 AC20 R22-0190.1-AC20 | Darwin | Type 4 | 9/09/2022 | 9/09/2024 |
| NT-RAMD - 2023-018 | Downer |
Type 2 H Type 2H QLD22-0246 | Darwin | Type 2 | 2/02/2023 | 2/02/2025 |
| NT-RAMD - 2023-019 | Downer | Type 2 - AC10 - Medium QLD22/0252 C320 | Darwin | Type 2 | 4/08/2023 | 4/08/2025 |
| NT-RAMD - 2022-021 | Top Coat | AS-T3-A20E-2022 | Alice Springs | TYPE 3 (A20E) | 9/02/2022 | 9/02/2024 |
| NT-RAMD - 2023-022 | Top Coat | AC14HT5-2023 | Alice Springs | Type 5 | 14/07/2023 | 14/07/2025 |
Contact
Senior Project Manager – Bitumen
andrew.batson@nt.gov.au
08 8999 4873
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