STUDY OF CRACKING - RESEARCH INTO NEW MATERIALS

ETUDE DE LA FISSURATION - RECHERCHE DE MATERIAUX NOUVEAUX

THE OBJECTIVES OF THE RESEARCH ARE TO STUDY CRACKING CHARACTERISED BY THE SPACING AND WIDTH OF CRACKS AND TO INVESTIGATE NEW MATERIALS LESS SENSITIVE TO CRACKING. IT APPEARS THAT THE STRENGTH AND VISCOELASTIC BEHAVIOUR OF THE MATERIAL PLAY AN IMPORTANT ROLE IN THE ORIGIN OF CRACKS. FOLLOWING STUDIES CONDUCTED IN 1975 OF THE CREEP AND SHRINKAGE CRACKS OF GRAVEL MORTAR, SIMILAR STUDIES WILL BE CARRIED OUT ON GRAVEL WITH A VIEW TO: COMPARING THE VISCOELASTIC BEHAVIOUR OF GRAVEL AND MORTAR; INVESTIGATING THE FISSURATION BEHAVIOUR (IMPEDED THERMAL CRACKING, PRIMARY SHRINKAGE). TESTS ON THE USE OF THE SPECIAL MUNTZER EMULSION AS A MIXED STABILIZATION TECHNIQUE WILL BE PERFORMED.