oa New Generation TDR for Identifying and Characterizing Engineering Properties of Soils

Recent work indicates that Time Domain Reflectometry (TDR), using signatures from currently available probes and equipment can be processed to identify soil type and determine water content and dry density. Several characteristics of the signatures in addition to the apparent dielectric constant and bulk electrical conductivity have been identified to support these determinations. the presentation will identify these characteristics, give the development of the process, and demonstrate their use for a variety of soils and compaction conditions. Implications will be provided for extension of the method to field applications for geotechnical/transportation construction control of soils.