For further information contact pavements@nzta.govt.nz
Published: 2020
This specification shall apply to the in-situ stabilisation of subgrade layers comprising either natural in situ soils, imported fill materials or a combination of both using cement, lime or a combination of these.
Pilot specification for in-situ subgrade stabilisation (B9)
Published: 1997
This specification and guidance notes cover the construction of earthworks including the clearing and removal of all obstacles within the limits of the earthworks; the excavation of all cuts, including excavation below the final subgrade surface; the excavation of borrow areas, benches and surface drainage facilities; the carting of the excavated material to fill or waste; and construction of the fills and subgrade; shaping, trimming, grassing and maintaining of the works.
Published: 2012
This specification and guidance notes apply to the purchase of calcium oxide or calcium hydroxide for use in soil stabilisation. Calcium oxide and calcium hydroxide are active ingredients present within the materials supplied under the names of quicklime and hydrated lime respectively.
Lime for use in soil stabilisation (M15)
Published: 1977
This test procedure covers the determination of the rebound deflection of a pavement under a standard wheel load and tyre pressure, with or without temperature measurements.
