Soil Strength Recovery Using a Clegg Impact Deviceby Bernard D. Alkire, Michigan Technological Univ, Houghton, MI, USA,
Lori Winters, Michigan Technological Univ, Houghton, MI, USA,
Abstract: The research described in this paper uses the Clegg Impact Device to determine the relative strength of a soil, and describes how this information can be used to develop the strength recovery curve associates with spring thaw. Field tests include Clegg Impact Values (CIV) taken at a test section on an aggregate-surfaced road. Readings were taken through two spring thaw-recovery cycles. Field CIV are correlated to laboratory values of CIV and California Bearing Ratio (CBR). Results indicate that field CIV produce a strength-recovery curve that can be used to make decisions related to trafficability.
Subject Headings: Soil strength | Impact tests | Material tests | Curvature | Strength of materials | Field tests | Traffic management | Soil tests
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