Concrete Roads
and Their Construction

18 CONCRETE ROADS Latest Report.—When this road was inspected in the May of 1914, the surface was in perfect condition. Tn the spring of 1915 the tar-spraying, etc., was done, and when seen again in August, 1919, the surface was still in complete order, and there was not the slightest sign of the dressing lifting in any way. On this point it is well worth remembering that when the tar spraying and chippings were first put down, the concrete was thoroughly dry and hard. Fig. 11.-—View of completed road, Whitefriars, Chester. Whitefriars, Chester.—This road, which is 510 feet long and 15 feet wide, was laid in August, 1914. It was originally a road made with wooden blocks resting on a concrete foundation. The foundation, having been broken up at different times for various repairs, was not in good condition. Two inches of concrete were put in, after which the metal reinforcement was placed across the road, and upon the reinforcement a further 4 in. of concrete was laid. This was a 6 to 1 mixture composed of four parts Welsh granite, graded from | to 1 in., two parts fine sharp sand and one part cement. On compJetion the road was closed for three weeks, kept well watered, and then opened to traffic. Somewhat later it was tar-sprayed and granite chippings were put on. The cost of this road, including excavation, was 6s. 3cZ. per yard super. Latest Report.—Speaking at the Roads and Transport Congress, held in London at the end of 1919, Mr. Matthews Jones, the City Surveyor, stated that his Highways Committee had been so satisfied with the results obtained that permission had been given