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Resources

Displaying 131 - 140 results of 233 for ""

Research Report 502 Assessing pre-tensioned reinforcement corrosion within the New Zealand concrete bridge stock

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

Precast pre-tensioned concrete bridge construction became common in New Zealand in the 1950s and a large number of pre-tensioned concrete bridges were constructed between 1953 and 1980.

Research Report 050 Antioxidents for roading bitumen

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

The technical literature up to 1994 dealing with the use of antioxidants to decrease the rate of age hardening in bitumen used for roading chipseals was reviewed.

Research Report 049 Assessment of torsional braid analysis technique for polymer-modified bitumens

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

Modified bituminous materials can be used to advantage on roads that are subject to high stress, such as on heavily trafficked sections, sharp bends, and bridge decks, or to wide variations of temperatures.

Research Report 455 Performance of open graded porous asphalt in New Zealand

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

The objective of this research, which was carried out between 2006 and 2007, was to propose methods to disseminate and incorporate local as well as international knowledge of OGPA performance into the current New Zealand asset management systems. Com…

Research report 454 Concrete pile durability in South Island bridges

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

Alkali silica reaction (ASR) has, until recently, been considered to present a low risk to concrete in the South Island of New Zealand.

Research Report 580 Quantifying the likelihood of barrier strike maintenance

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

Recent research both in New Zealand and Australia has identified the benefits associated with the installation of various barrier types and in particular the significant benefits associated with wire rope barriers (WRBs).