Services and Projects.Geotechnical Laboratory Testing

Virtually every project requires consideration of subsurface features unique to the locale. The geotechnical consulting engineer evaluates the characteristics and behavior of subsurface soils, then interprets this data, and makes recommendations on soils parameters, which may be used for design and/ or remedial purposes. While engineering identifies the problems and the probable causes, the results of laboratory testing and analysis establishes the facts and parameters involved. Field and laboratory testing of soils, construction materials, and groundwater often complement each other. In a complete testing program, they work together to assure accurate and adequate knowledge of the materials used during design, construction and evaluation of potential subsoil and groundwater contamination problems. The field and laboratory data together with our engineering recommendations will be presented in an engineering report. The report will address the specific project design, construction, and quality control requirements.

RJR’s laboratory testing has the capabilities to perform geotechnical testing under controlled conditions to evaluate standardized test of materials, as well as tests of new materials used in research and development. The RJR laboratory conducts laboratory testing to evaluate soil classification, shear strength, compaction, compressibility, swell potential, permeability, etc. Our tests are conducted in general accordance with ASTM and CalTrans standards.In addition, RJR is one of the only private consulting firms with a Torsional Ring Shear which provides specialized assessment of the shear strength of soil and rock for landslides.