ABSTRACT
Radical Concrete Technology. Edited by R K Dhir and P C Hewlett. Published in 1996 by E & FN Spon, 2-6 Boundary Row, London SE1 8HN, UK. ISBN 0 419 21480 1.
ABSTRACT. The present article describes a project with the aim of developing a method to design a stable air void system in concrete by optimizing the composition of the aggregate among other things by carrying out a packing analysis. The composition of the aggregates is chosen so that the size of the cavities between the aggregates ensures an optimum air void system. In addition, the amount of cement paste must be less than what is required to fill in the cavities between the aggregates. This decifit of cement paste makes room for air voids. Keywords: Concrete mix design, Air voids, Packing of aggregates, Decifit of cement paste. Dr Mette Glavind is a consultant at the Concrete Centre, Danish Technological Institute. Her main working areas cover mix design of concrete, fibre reinforced concrete, environmental aspects and life cycle analysis of concrete. Mr Ib B.Jensen is Head of technical department at Unicon Concrete covering 8 ready mixed concrete plants. His main working areas cover mix design of concrete and quality management.
