Characteristics of Compacted Bases and Subbases

摘要

Three Utah Highway Department Construction projects were selected to study the characteristics of compacted bases and subbases for the establishment of new statistical parameters. The projects were selected so that the measured characteristics would cover different field conditions. The research was conducted on the base and subbase courses as they were constructed under normal operating and control methods. Statistical parameters were established for the 3 methods for determining in place density now being used in the Utah Department of Highways, the Lane-Wells Road Logger, Nuclear Chicago's Portable Nuclear Moisture-Density gage and the Sand-Cone method. The sampling or measurements were made using random selection of the sampling units.