WATERPROOF MEMBRANES FOR PROTECTION OF CONCRETE BRIDGE DECKS
1971
THE DEVELOPMENT OF EFFECTIVE WATERPROOFING MEMBRANE SYSTEMS FOR USE ON CONCRETE BRIDGE DECKS IN REPORTED. THIS PAPER REPORTS THE RESULTS OF THE FIRST PHASE OF THE STUDY. A COMPREHENSIVE LITERATURE SEARCH REVEALED 380 DOCUMENTS THAT BEAR ON BRIDGE DECK PROTECTION. ALL INFORMATION AVAILABLE ON MEMBRANES WAS ANALYZED, AND MEMBRANE SERVICE REQUIREMENTS AND DESIGN CRITERIA WERE DEFINED. A FIELD INSPECTION PROGRAM WAS CONDUCTED TO EVALUATE SELECTED SYSTEMS, INCLUDING APPLICATION TECHNIQUES. THE FIELD DATA ACQUIRED IS TABULATED. INFORMATION FROM THE FIELD STUDY AND LITERATURE SURVEY WAS USED TO IDENTIFY MEMBRANES AND MATERIALS THAT HAVE CONSISTED PERFORMANCE IN THE FIELD. MATERIAL CHARACTERIZATION TESTS (LABORATORY) ARE REPORTED WHICH IDENTIFY AND DEFINE THOSE PROPERTIES THAT AFFECT PERFORMANCE OF MEMBRANE SYSTEMS. QUALIFYING TESTS (RELATIVE TO FIELD PERFORMANCE) WERE DEVISED. THE LABORATORY PERFORMANCE SCREENING TEST PROGRAM IS TABULATED. AN EXPERIMENTAL PROGRAM EVALUATING THE PERFORMANCE IN THE FIELD OF SELECTED MEMBRANE SYSTEMS UNDER SERVICE CONDITIONS WAS DEVISED, AS WAS ALSO, A PROCEDURD FOR DETERMINING COST-BENEFIT RATIOS ASSOCIATED WITH THE USE OF MEMBRANE SYSTEMS. TENTATIVE CONCLUSIONS BASED ON THE STUDY ARE PRESENTED.
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