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)
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.
