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The technical staff of ERI has
the mobility and experience to provide services from the field to the laboratory. Valuable
information can be collected efficiently and accurately through in-situ testing.
Full-scale coring operations are provided for the collection of bituminous, concrete
and stabilized pavement layer samples for use in the laboratory. Verification of pavement
layer thicknesses is also accomplished through coring. Complete soil classification testing is
performed including sieve analysis and Atterberg limit testing. Soil samples can be
recompacted to develop moisture-density relationships and perform CBR testing. Confined
and unconfined triaxial testing of soil materials are also available. In addition, a
complete list of index properties, such as unit weight, moisture content, density and
specific gravity of fine and coarse aggregates can be determined. All testing procedures performed through ERI
follow current ASTM and AASHTO specifications for materials testing. Services are
performed by trained personnel with years of dedication in providing professional work to
the field of transportation. ERI is currently listed in the ASTM International Directory
of Testing Laboratories as a provider of materials and testing services.
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For over 15 years
the Materials Division of ERI has been active in the area of laboratory testing of soils
and construction materials used in the development of transportation facilities. Materials
testing services are provided for quality control programs, as a supplement to
nondestructive testing, and the development of mix designs and research
related testing. Testing services are provided in the areas of soils, aggregates,
bituminous materials, and Portland Cement Concrete.
