Who We've Helped

Hastings District Council - Polymer Modified Binder Solution for Asphalt Surfacing Performance
Hastings District Council - Polymer Modified Binder Solution for Asphalt Surfacing Performance

Hastings District Council had a number of roundabout and intersections sites ready for structural rehabilitation due to excessive rutting, shoving and cracking.  Heavy duty structural asphalt was recommend by the consultant as a long lasting solution to provide resistance for turning...

Should I Seal? Road Science and Metservice Unite
Should I Seal? Road Science and Metservice Unite

Should I Seal (SIS) is an innovative new online tool designed to provide clear advice to Downer’s roading sector on when to spray bitumen emulsion. A collaborative journey between Road Science and MetService, the tool will revolutionise the chipsealing process by integrating forecasting...

Sealing with Road Science Bitumen Emulsion any time of year Rotorua District Council
Sealing with Road Science Bitumen Emulsion any time of year Rotorua District Council

Rotorua District Council (RDC) was keen to try it. “The council was able to undertake sealing in September, when the weather would generally preclude using traditional bitumen,” says John Vercoe of Road Science. “That meant the Downer sealing crews and equipment were utilised...

Problem solving a cracking and failing road Auckland Transport
Problem solving a cracking and failing road Auckland Transport

Creative problem-solving is in the Road Science DNA. In 2010, Auckland Transport came to the company with a problem involving the iconic Tamaki Drive, which was cracking and failing. The base course was unstable and the asphalt very thin, due to fixed kerb and channel heights and services buried at...

Taking a closer look at the base course
Taking a closer look at the base course

Road Science is also taking a closer look at the base course – the layer under the seal, usually crushed greywacke in New Zealand. The New Zealand Transport Agency specifies the base-course ‘recipes’ for all of its roads. However, says Greg Arnold, Technical Manager Pavements,...