Twelfth National Asphalt Conference. Proceedings: Fid-Bau Portal

Twelfth National Asphalt Conference. Proceedings

Proceedings of 1939 National Asphalt Conference, including following papers: Economic Factors Controlling Highway Programs, J. E. PENNYBACKER; Significance of Asphalt in Airport Program, J. E. BUCHANAN; Use of Asphalt in Water Control Projects, W. E. CHRISTISON; Materials, Review, Analysis and Forecast, N. F. M. COY and P. HUBBARD; Slow-Curing Products, J. W. POWERS; Cut-Back Asphalts, F. N. HVEEM; Development of Emulsified Asphalt, R. R. THURS TON; Asphalt Cements, H. W. SKIDMORE; Tests to Determine Relative Merits of Low to High Penetration Asphalt in Hot-Mix Construction, T. E. STANTON, Jr; Mineral Aggregates for Asphalt Highway Surfaces, D. J. STEELE; Design and Construction; E. WITHYCOMBE and B. E. GRAY; Relation of Base to Wearing Course, R. M. GILLIS; Surface Treatment and Its Development, W. J. BECKHAM; Road-Mix, E. Q. SULLIVAN; Penetration Macadam Construction, F. D. EASON; Plant-Mix, M. MEYER; Twenty Years of Progress in Development of Equipment for Bituminous Construction, J. L. HARRISON; Tools and Equipment for Earth Moving in Highway Construction, F. A. NIKIRK; From Pouring Pots to Pressure Distribution, W. E. WORCESTER; Rollers Twenty Years Ago and Today, W. J. HAZELTINE; Stationary Mixing Plants, J. M. LACKEY; Development of Power Driven Blade Graders, H. M. KLEISER; Traveling Mixing Plants, H. H. BARBER; From Hand Spreading to Mechanical Spreaders, L. GARDINER; Special Maintenance Tools Required; Improvements Already Made and Those Desirable, T. H. DENNIS; Status of Asphalt Research and Instruction in Engineering Schools and Colleges in United States, J. E. BUCHANAN.