BEHAVIOUR OF LOOSELY PLACED PVC SOFT SEALS NEAR SETTLEMENT JOINTS OF DEEP ENGINEERING STRUCTURES

UNTERSUCHUNG DES VERHALTENS VON LOSE VERLEGTEN PVC-WEICH ABDICHTUNGEN IM BEREICH VON BEWEGUNGSFUGEN BEI KOMMUNALEN TIEFBAUTEN

SETTLEMENT JOINTS NEED TO BE PLANNED WITH SPECIAL CARE BECAUSE OF THE SEALING AGAINST MOISTURE AND WATER INGRESS. IT IS NECESSARY TO KNOW THE MECHANICAL BEHAVIOUR OF THE SEALS BUILT IN, AND THE LIMITS OF THEIR USE. TESTS HAVE ALREADY BEEN CARRIED OUT AND PUBLISHED ON BITUMEN SEALS, BUT THERE ARE NO ACCURATE DATA ON THE BEHAVIOUR OF THE PVC SEALS WHICH HAVE BEEN USED TO AN INCREASING EXTENT IN THE LAST FEW YEARS. THE OBJECT OF THIS WORK IS TO STUDY THE BEHAVIOUR OF PVC SOFT SEALS IN THE REGION OF A CONSTRUCTION JOINT. THE RESULTS OF THE STUDY SHOULD PROVIDE QUALITATIVE AND QUANTITATIVE DATA ON THE RELATIONS BETWEEN WATER PRESSURE, DEFORMATION OF THE STRUCTURE AND FAILURE OF THE SEAL. BASED ON THESE DATA RECOMMENDATIONS ARE TO BE MADE FOR PRACTICE. THE PVC INDUSTRY IS PROVIDING 60000 DM TOWARDS THIS STUDY.