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 influence of curing conditions on compressive strength and carbonation rate has been studied in a field exposure test on two OPC concrete qualities. The influence of parameters such as the water-cement ratio, the time until form removal and the exposure conditions were studied. The results from the tests show that the difference between different curing conditions becomes more pronounced for dry than for humid climatic conditions. This means that laboratory tests cannot always be used to predict concrete behaviour in real structures. Field exposure tests are to be preferred. The results also indicate that wet curing produces somewhat higher strength than curing with plastic film while the two curing methods seems equally efficient for producing good durability. As expected, no protection at all after casting gives much poorer results.