10-10-2009, 03:10 PM
ABSTRACT
Self desiccation occurs in all types of concrete due to thechemical shrinkage that takes place when water is attached to thecement . In High Performance Concrete the low porosity makesthe effect of self-desiccation much more pronounced. This paperpresents a summary of a Nordic Seminar on Self-Desiccation inConcrete held in Lund. For this purpose aspects of mix design,curing conditions, desiccation, micro-cracking, self stresses,shrinkage and frost resistance related to self-desiccation aredetailed. Initially a background is given on the principal effects ofself-desiccation. This Nordic Seminar took place in Lund on 10June 1997.Keywords: Autogenous shrinkage, Chemical Shrinkage, Frostresistance, High Performance Concrete, Hydration, Internalrelative humidity, Moisture, Self-desiccation, Selfstresses