Accession Number : AD0756294

Title :   Weathering Tests on Bituminous Pavement Samples. Observations of Effects through November 1959.

Descriptive Note : Rept. no. 2,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS

Personal Author(s) : Maxwell,A. A. ; McRae,J. L. ; Larson,W. H.

Report Date : MAR 1962

Pagination or Media Count : 34

Abstract : The effects of weathering on the durability of flexible pavement specimens (standard Marshall cores 4 in. in diameter and 2-1/2 in. in height) exposed at the Waterways Experiment Station for periods of 26 to durability of the specimens were studied: gradation and type of aggregate; bitumen content; type of bitumen; compaction effort and method; quantity of filler (i.e. material passing No. 200 sieve); and confinement of specimens within rigid and flexible media. The weathering effects described are based solely on visual determinations of aggregate exposure, deformation and cracking of the specimens, and migration of the bituminous binder. (Author)

Descriptors :   (*PAVEMENTS, DEGRADATION), WEAR RESISTANCE, CONSTRUCTION MATERIALS, DEFORMATION, CRACKS, VISUAL INSPECTION, PARTICLE SIZE, EXPOSURE(PHYSIOLOGY), TEST METHODS

Subject Categories : Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE