EFFECT OF SERVICEABILITY AND ROUGHNESS AT TRANSVERSE JOINTS ON PERFORMANCE AND DESIGN OF PLAIN CONCRETE PAVEMENT

THIS PAPER COVERS THE AUTHOR'S ACTIVITIES DURING THE PAST 16 YEARS IN PLAIN PAVEMENT EVALUATION. THE STUDIES INCLUDE MEASUREMENT OF FAULTING BY HAND METHOD, CONVERSION OF THESE DATA TO SLOPE VARIANCE, APPRAISAL OF HIGHWAY USER REACTION TO FAULTING ROUGHNESS, MEASUREMENT OF CRACKING AND PATCHING, AND SURVEY OF SERVICEABILITY INDEXES BY THE PCA ROAD METER. THESE PERFORMANCE FEATURES WERE RELATED TO WIDE SPECTRA OF PAVEMENT THICKNESSES, TRAFFIC, SUBGRADE SOIL CLASSIFICATION, JOINT SPACING, AND AGE OF PAVEMENT IN MINNESOTA, WISCONSIN, NORTH DAKOTA, AND IOWA. RESULTS HAVE BEEN EXPRESSED IN A DESIGN MODEL FOR THE PLAIN PAVEMENT SYSTEM. COMPONENTS ARE EXPLAINED, DATA SOURCES ARE CITED, AND SUGGESTIONS ARE MADE FOR ADDITIONAL RESEARCH AND CONSTRUCTION OF TEST SECTIONS MEETING THE CRITERIA ESTABLISHED.