Road Research: Types of Road Surfacing and Maintenance Using Tar of Asphaltic Bitumen (Road Research Laboratory, Road Note No. 5)
28pp stapled booklet, illustrated with black and white photographs. In green card covers (slightly soiled, faded at edges, a little rusted around staples, previous owner's name written on front). Internally a little edge wear, and occasional pencil underlining. Enumerates the types of bituminous road construction in common use (at the time of publication) and those still under development; the purpose and technical merits of each type; and the relative advantages of using road tar or asphaltic bitumen as a binding medium.
