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A platform for research: civil engineering, architecture and urbanism
Report on Experimental Pavement Resurfacing
The condition of a road constructed in 1929 and resurfaced and widened from 20 to 24 feet in 1948 is given in this report. Six types of resurfacing were used on this project. They were as follows: (1) Grade raised. Old slab left, 2.5 feet of fill then 8-inch concrete pavement. (2) Old slab left in place, 3- to 8-inch sand cushion, then 8-inch concrete pavement. (3) Old slab removed, broken up and incorporated in subgrade, 8-inch concrete pavement. (4) Six-inch concrete pavement placed directly on old slab. (5) Same as 'D' except 1 1/2-inch sand cushion between old and new slabs. (6) Five-inch concrete pavement placed directly on 1 1/2-inch bituminous mat placed on old slab in 1943. The poorest condition is found in the resurfacing placed directly upon the old slab. The best, where the resurfacing slab and the old slab are separated by an 'insulating' layer of sand. There is some evidence that the condition of the old pavement is being reflected in the condition of the overlay pavement where the two are in contact. The total traffic has increased 55 percent since resurfacing, but traffic accidents have dropped 49 percent.
Report on Experimental Pavement Resurfacing
The condition of a road constructed in 1929 and resurfaced and widened from 20 to 24 feet in 1948 is given in this report. Six types of resurfacing were used on this project. They were as follows: (1) Grade raised. Old slab left, 2.5 feet of fill then 8-inch concrete pavement. (2) Old slab left in place, 3- to 8-inch sand cushion, then 8-inch concrete pavement. (3) Old slab removed, broken up and incorporated in subgrade, 8-inch concrete pavement. (4) Six-inch concrete pavement placed directly on old slab. (5) Same as 'D' except 1 1/2-inch sand cushion between old and new slabs. (6) Five-inch concrete pavement placed directly on 1 1/2-inch bituminous mat placed on old slab in 1943. The poorest condition is found in the resurfacing placed directly upon the old slab. The best, where the resurfacing slab and the old slab are separated by an 'insulating' layer of sand. There is some evidence that the condition of the old pavement is being reflected in the condition of the overlay pavement where the two are in contact. The total traffic has increased 55 percent since resurfacing, but traffic accidents have dropped 49 percent.
Report on Experimental Pavement Resurfacing
1965
41 pages
Report
No indication
English
Civil Engineering , Pavements , Roads , Materials , Surfaces , Effectiveness , Construction , Maintenance , Concrete , Sand , Asphalt , Traffic , Accidents , Nebraska
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