
CONSTRUCTION
Smythes is capable of supplying a full spectrum of products to meet the construction market.
Basecourse A range of basecourses are available to NZ Transport Agency Waka Kotahi and local authority specifications.
Sub-basecourses/Fill We have a large range of lower grade non specified basecourses available for subgrade improvement and general fill. Unscreened granular fill material are also available.
Our Construction range:
NZTA M040 - TNZ40
Auckland Transport All Passing 40 - ATAP 40
Auckland Transport All Passing 65 - ATAP 65
Waikato Hamilton All Passing 40 - WHAP 40
Waikato Hamilton All Passing 65 - WHAP 65
General All Passing 40 - GAP 40 (non spec)
General All Passing 65 - GAP 65 (non spec)
General All Passing 7 - GAP 7 (non spec)
General All Passing 10 - GAP 10 (non spec)
General All Passing 20 - GAP 20 (non spec)
General All Passing 100 - GAP 100 (non spec)
Maintenance All Passing 40 - MAP 40 (sub base)
Maintenance All Passing 65 - MAP 65 (sub base)
Gabian Rock 250/100
Gabian Mattress Rock 130/65
Boulder Spalls
Builders Mix
Track Mix
Drainage Chip 20/7
Drainage Chip 40/20
Drainage Chip 65/40
Run of Pit Blue
Run of Pit Brown
Run of Pit Soft
Clay Fill
NZ Transport Agency Waka Kotahi Specification for Basecourse Aggregates NZTA M04 2024