Discussion

Edited by

The assessment of geotextile properties and methods of testing geotex

tile reinforcements were discussed in relation to time-dependent beha

viour and durability.

Mr McCombie (Netlon Ltd) agreed with Mr Corbett that each of the geotextile properties needed for a project were fully understood and that the product to be used fully met those requirements. He asked Mr Corbett to comment on independent approval of products, and quality control of their manufacture.

The British Board of Agrement (BBA) in the UK and the Institut fuer Bautechnik (IFB) in Germany are just two of a number of organizations which carried out full independent assessments of a very wide range of products and specified how they should be used and advised on the design procedures. The other aspect concerned quality control and ensuring that the product arriving on site met the specifications which had been given by the manufacturer. To ensure a satisfactory scheme the requirements were first of all a quality control system such as one which conformed to BS 5750, and second independent checks carried out by approving bodies such as BBA.