Proceedings of the Annual Convention, Volumen19

A. T. Goldbeck American Road Builders asphaltic concrete Association bituminous BLANCHARD Professor Board of Directors bonds brick building Bureau of Public carry cement cent CHAIRMAN BOWLBY CHAIRMAN UPHAM Chicago Chicago Coliseum co-operation Committee concrete roads contractors convention corner cost keeping crack deflection discussion double track economic edges Federal feet filler five gasoline tax going grading gravel highway commission highway construction Highway Department Highway Engineer hundred impact improvement January 17 laboratory load maintenance materials meeting mesh methods miles million dollars mixture moisture motor trucks motor vehicles organization paper pavement paving penetration percentage pounds President problems proportions Public Roads railroad requirements river road surface sample sand Section sieve sieve analysis single track roads slab soil specifications standard stress subgrade tests tion tires track road traffic U. S. Bureau Vermilion County Wallace F warping weight wheel width