Resources

Displaying 131 - 140 results of 233 for ""

Research Report 628 Standardisation of laboratory compaction energies

Published:
Category: Activity management , Research programme , Research & reports | Audience: General

This research reviewed the New Zealand vibrating hammer laboratory compaction test and energy standardisation thereof.

Research Report 622 Best practice guide for pavement stabilisation

Published:
Category: Activity management , Research programme , Research & reports | Audience: General

New Zealand pavement engineers, in collaboration with colleagues in South Africa and Australia, are recognised internationally as leaders in the use of stabilisation in highway, road, airport, port and industrial hardstand pavement applications.

Research Report 266 Derivation of appropriate traffic & loading data and parameters for road asset management

Published:
Category: Activity management , Research programme , Research & reports | Audience: General

The main purpose of this project is to identify appropriate traffic and loading data for use in RAMM, other pavement management systems (PMS) with treatment selection algorithms and for pavement deterioration models.

Research Report 265 Porous asphalt durability test

Published:
Category: Activity management , Research programme , Research & reports | Audience: General

The most common form of distress of aged open graded porous asphalt (OGPA) is loss of chip from the surface (fretting and ravelling) caused by embrittlement through reaction with atmospheric oxygen.

Research Report 258 Detailed experimental investigation for foamed bitumen stabilisation

Published:
Category: Activity management , Research programme , Research & reports | Audience: General

As the demand for a cost-effective and environmentally friendly pavement stabilisation method increases, so has foamed bitumen stabilisation for unbound granular pavement layers started to gain broad acceptance worldwide.

Research Report 254 SASW – a method to determine pavement composition & strength

Published:
Category: Activity management , Research programme , Research & reports | Audience: General

An investigation into the application of SASW (seismic analysis of surface waves), to measure the layer thickness and material moduli of pavements to assess pavement strength, was carried out in 2003 on roads in New Zealand.

Research Report 367 Pavement deterioration models for asphalt-surfaced pavements in New Zealand

Published:
Category: Activity management , Research programme , Research & reports | Audience: General

This report details findings from the New Zealand Long-Term Pavement Performance Programme that aims at the development of deterioration models.

Research Report 352 Using road profile variance to identify sites that promote poor truck ride quality

Published:
Category: Activity management , Research programme , Research & reports | Audience: General

The relationships between measured truck response data and road profile variance values derived from raw road profiles for short, long and medium wavelengths were examined.