Occasionally concrete surfaces are marred by staining from impurities, such as lignite or pyrites, introduced into the concrete from the aggregates. These are naturally occurring in small amounts within most primary sands and gravels. This document provides guidance on the specification and where responsibilities might lie.

Published: January 2015. October 2016
Format: PDF
Pages: 4


For 40% discount on this publication, enter your Concrete Society membership number in the coupon field at checkout.