Sierra Testing Laboratories, Inc

Specialties

A partial list of soils testing services offered by our laboratory is listed below:

* Compressive Strength of Concrete

* Triaxial Compression

* Unconfined Compression

* Direct Shear

* Hydraulic Conductivity (Triaxial & Constant Head)

* Moisture Density Relation

* Organic Content

* Particle Size Analysis

* Plasticity Index

* Resistance «R» Value

* Soundness/​Durability

* Swell

* Vane Shear

Another major branch of the Sierra Testing Laboratories, Inc (STL) quality control matrix is the field testing and inspection department. The field service staff has been selected and retained over the years, amassing a great body of knowledge and experience in numerous aspects of field testing and inspection, including but not limited

History

Established in 1994.

Our approach to laboratory testing is unique in today’s consulting environment. We do not just perform testing, we get involved with our clients to ensure that testing requirements are met. All testing is performed on equipment calibrated and standardized at regularly scheduled intervals. The presentation of test data is computer generated to ensure both clarity and quality.

Our goal is to provide, technically accurate, computer drafted, test results in a timely manner; without compromising established procedures and recommended standards. Providing quality laboratory testing involves listening carefully and being responsive. We believe that you should get cost-​effective and technically advanced testing excellence. It is that simple.

Our Laboratory staff and procedures are certified by the US Army Corps of Engineers (USACE), The American Society for Testing Materials (ASTM) and the American Association of State and Highway Transportation Officials (AASHTO-​AMRL/​CCRL).