RHEOLOGICAL PROPERTIES OF HARDENED CONCRETE (CREEP AND SHRINKAGE)

PROPRIETES RHEOLOGIQUES DU BETON DURCI (FLUAGE ET RETRAIT)

TO ACQUIRE INFORMATION AS DETAILED AS POSSIBLE ON THE BEHAVIOUR OF CONCRETE AS REGARDS DIFFERED PHENOMENA (CREEP, SHRINKAGE AND RECOVERY). SPECIAL INTEREST WILL BE GIVEN TO THE COLLECTION OF EXPERIMENTAL DATA ON WHICH TO BASE AN ANALYTICAL BEHAVIOURAL MODEL AND THE ESTABLISHMENT OF ACCURATE DRAFT REGULATIONS THAT TAKE ACCOUNT OF DIFFERED PHENOMENA. IN 1976 THE STUDY WILL DEAL WITH THE BEHAVIOUR OF LIGHTWEIGHT AGGREGATE CONCRETE AND THE INFLUENCE OF ADDITIVES AND ADMIXTURES, AND WITH THE INFLUENCE OF PARAMETERS DEFINING STEAM-CURING CYCLES. AN ATTEMPT WILL BE MADE TO PERFORM AN ACCURATE ANALYSIS OF THE BEHAVIOUR OF CONCRETE SUBJECTED TO COMPRESSION WHEN VERY YOUNG.