Natural sand is a limited resource but one Norwegian quarry operator is offering an alternative with industrial sand, which it claims is better than the real thing. Claire Symes visited Velde Pukk to find out more. If you arrive at Norway's Stavanger Airport right now, you may think you are on a building site, rather than an airport but the work marks a step change in the approach to concrete in Norway. Part of the work includes construction of a 27,000m2 car park by precast manufacturer and contractor Spen