Soil Testing Laboratory

Geotechnical Laboratory

J&S laboratory has been testing soils in PR and the Caribbean Region since 1967. J&S is accredited by AASHTO Accreditation Program (AAP) and US Army Corps of Engineers validated for certain standards. J&S maintains a comprehensive quality control and personnel training program. J&S soil laboratory testing is monitored and verified by a PE staff engineer with the support senior geotechnical engineers.

Senior Laboratory Supervisor – Javier Osorio, P.E.(NICET certified)

http://aashtoresource.org/
https://mtc.erdc.dren.mil/

For specialized soil testing such as consolidations, triaxial and permeability tests, we have a state of the art fully automated testing machine. We have capability of conducting the following soil laboratory tests:

  • STANDARD PROCTOR TEST (ASTM D698)
  • MODIFIED PROCTOR TEST (ASTM D1557)
  • PARTICLE SIZE ANALYSIS (ASTM D1140, C117, C136, D422)
  • HYDROMETER (ASTM D422 & D7928)
  • MOISTURE CONTENT (ASTM D2216)
  • ATTERBERG'S LIMITS (ASTM D4318)
  • SPECIFIC GRAVITY (ASTM D854, C127, C128)
  • ORGANIC CONTENT (ASTM D2974)
  • Hydraulic Conductivity (ASTM D5084)
  • PERMEABILITY TEST - CONSTANT HEAD (ASTM D2434)
  • ONE-DIMENSIONAL CONSOLIDATION TEST (ASTM D2435)
  • SWELL TEST (ASTM D4546)
  • TRIAXIAL TEST - UU (ASTM D2850)
  • TRIAXIAL TEST - CU (ASTM D4767)
  • UNCONFINED COMPRESSIVE STRENGTH (ASTM D2166)
  • DIRECT SHEAR (ASTM D3080)
  • CLASSIFICATION TEST - USCS & AASHTO (ASTM D2488)
  • UNCONFINED COMPRESSION BY SPRING TESTER
  • LABORATORY SOIL RESISTIVITY TEST (AASHTO T-288)
  • SOUNDNESS TEST BY SODIUM SULFATE (ASTM C88)
  • ORGANIC IMPURITIES (ASTM C40)
  • CALIFORNIA BEARING RATIO LAB (ASTM D1883)
  • CALIFORNIA BEARING RATIO FIELD (ASTM D4429)
  • SAND EQUIVALENT (ASTM D2419)
  • PH SOIL (ASTM D4972)
  • ABRASSION (ASTM C131)
  • ROCK CORE COMPRESSION TEST (ASTM D7012)
  • SPECIFIC GRAVITY AND ABSORPTION (ASTM C128)
  • EXPANSION INDEX TEST (ASTM D4829)
  • OTHERS

Please consult our staff engineers for other specialized tests that you may require.