• 1.png
  • 2.png
  • 3.jpg
  • 4.jpg
  • 5.png
  • 6a.png
  • 7.png
  • 8.png
  • 9.png
  • 10.png
  • 11.png
  • 12.JPG
  • 13.png
  • 14.png
  • 15.png

Welcome to Chris Bennett's and Lis Pedersen's web site. If you are looking for information Chris' current work on affordable housing, please visit www.mygbhousing.info. The video below tells the background to Chris' project.


2007 - Denmark - Optimized Thin Layers for Highways


2007 - Denmark - Optimized Thin Layers for Highways

There is a great need for durable noise reducing pavements for highways. The concept for noise reduction is to create a pavement texture, with big cavities at the pavement surface in order to reduce the noise generated from air pumping, and ensuring a smooth surface so noise generated by vibration of the tyres will not be increased. Open textured pavements are open only at the upper part and are not expected to need special winter maintenance. European experiences with thin layers have been further developed. Four different pavement concepts are used: Open graded asphalt concrete (DAC-open), Stone Mastics Asphalt (SMA), a thin layer constructed as an UTLAC (Ultra Thin Layer Asphalt Concrete), and semi porous pavement (PAC). In 2006 10 optimized thin layers were laid on a Danish highway near Herning. Maximum aggregate sizes were in the range of 6 to 8 mm. Dense Asphalt Concrete with 11 mm maximum aggregate size is a reference pavement. The results from the first series of SPB noise measurements are presented in this paper.

File Name: 2007_denmark_optimized_thin_layers.pdf
File Size: 366.72 KB
File Type: application/pdf
Hits: 745 Hits
Download: 1733 times
Created Date: 15-04-2008
Last Updated Date: 21-03-2018


Chris in the NCT Race 

Chris has an adventurous spirit which generally involves cycling, running, or just being out there having a good time. Read his 'Race Reports' below. This is a link to his SPOT GPS tracker. If you are interested in his 'geeky' sport technical blog it is at www.tri-duffer.com. He also has stories of his life as 'An Overtravelled Engineer Working for the World Bank' at World Bank Traveller.


Race Reports


Document Library


  • Chris' published papers and reports are here.
  • His Technical Library  has a range of reports 
  • Golden Bay community projects are here.
  • The history of the ROMDAS company is here.
  • The 'Road to Good Health' HIV/AIDs Toolkit is here.


Technical Library

Chris and Lis

Chris and Lis

We are Lis Pedersen and Chris Bennett. We’ve been married over 30 years and each found our way to New Zealand in the early 1980s from Denmark and Canada respectively. Golden Bay has been our happy place for almost 20 years and we are now based in Pohara just above the beach, with our two cats Coco and Max. 




Read More