Resources

Displaying 31 - 40 results of 233 for ""

Research report 447 The influence of binder rise in reducing tyre-road friction

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

Research undertaken between 2007 and 2009 examined the influence of binder rise in reducing tyre–road friction of chipseal surfaces.

Research report 433 Abrasion resistance of aggregates in asphalt

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

The objective of this project was to investigate the durability and mechanical integrity of aggregate with a high polished stone value (>60) used in hot mix asphalt, particularly chips or coarse aggregates in stone-on-stone mixes such as stone mas…

Research report 470 Selection of aggregates for skid resistance

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

Statistical modelling was undertaken to develop a means for reliably predicting the expected in-service skid resistance of any rural section of the New Zealand state highway network surfaced with chip seal.

Research Report 461 Characterisation and use of stabilised basecourse materials in transportation projects in New Zealand

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

The stabilisation of near-surface granular pavement materials is accepted practice in transportation maintenance and capital development projects in Australasia.

Research Report 499 Modelling of extreme traffic loading effects

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

In New Zealand, premature failure of low volume, low strength state highways and local authority roads has sometimes occurred due to significant changes in heavy commercial vehicle traffic.

Research Report 498 The design of stabilised pavements in New Zealand

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

Areas of New Zealand are running out of premium aggregates that meet the demanding specifications used in unbound granular road construction.

Research Report 491 Factors influencing the decision to rehabilitate a pavement

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

The objective of this research, undertaken in 2008–11, was the development of an improved method of modelling the decision to rehabilitate a typical New Zealand thin-surfaced unbound granular pavement.

Research Report 006 Geotextiles

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

Geotextiles are permeable textile fabrics used in engineering applications.

Research Report 560 Reduced bitumen application rates using bitumen emulsions

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

This research project investigated the differences in cohesive energies of model chipseal samples prepared from bitumen emulsions, the base binders, and the kerosene cutback base binder.

Research Report 555 Optimising drainage maintenance for pavement performance

Published:
Category: Activity management , Research programme , Research & reports | Audiences: Advice and assistance, General, Roading contractors

This project was designed to investigate the importance of drainage maintenance for pavement performance and to recommend a maintenance strategy.