Specification Clauses

Specification of concrete placing time

This note gives some background to our modified specification clause for concrete that can be used in a wider range of environments and applications.

Concrete spacer to provide durable and adequate cover

This document outlines the issues and provides a specification clause for use of spacers.

Plastic crack control

The plastic cracking assesment criteria, calculating bleed & settlement, evaporation and bleed

Vibration limits

This paper outlines research on the shock vibration resistance of concrete at different strengths and provides new, less conservative criteria and is the basis of the criteria given here.