Accession Number : AD0883175

Title :   Technical Data Base for Stabilization of Deep Soil Layers.

Descriptive Note : Technical rept., Jan-Sep 70,

Corporate Author : ILLINOIS UNIV AT URBANA

Personal Author(s) : Robnett, Q. L. ; Jamison, G. F. ; Thompson, M. R.

Report Date : APR 1971

Pagination or Media Count : 150

Abstract : The majority of the airfield pavements supporting current Air Force operations were designed and built during World War II and are presently approaching the end of their design life. The nature of the aircraft for which these early pavements were designed is substantially different than the planes currently in service and the much heavier aircraft, such as the C-5A, anticipated for use in the future. In order to accommodate the heavier repeated wheel loads of the future, many of the airfield pavements currently in service will have to be strengthened. Possible schemes for improving the load-carrying capacity and performance of existing pavements fall into two broad categories: (1) conventional overlaying operations and (2) strengthening of the soil beneath the existing pavement structure with a minimum of disturbance to the existing pavement structure. In this report, the ability of various stabilization procedures to provide strength improvement to in-place subgrades was examined. Included in the stabilization procedures examined were electrical methods (electro-osmosis and electro-chemical), cement and chemical grouting procedures, lime stabilization procedures (drilled-hole and pressure injection) and a number of new techniques. (Author)

Descriptors :   *SOILS, *PAVEMENTS, STABILIZATION, LOADS(FORCES), LANDING FIELDS, FLEXURAL STRENGTH, PERFORMANCE(ENGINEERING), STRUCTURAL PROPERTIES, FOUNDATIONS(STRUCTURES), ELECTRICAL PROPERTIES, GROUT, CONSTRUCTION MATERIALS, CHEMICAL PROPERTIES, ELECTROOSMOSIS, SHEAR STRESSES, COMPRESSIVE PROPERTIES.

Subject Categories : Terminal Flight Facilities
      Soil Mechanics
      Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE