Laboratory Testing

GPD Group’s certified in-house laboratory provides testing services in accordance with ASTM standards to provide specific information regarding the soil and rock samples from the field. Testing includes Atterberg Limits, Minus #200 wash, moisture content, standard and modified proctor tests, concrete curing, strength testing on concrete cylinders and beams, soil permeability, Triaxial Shear, soil resistivity, unconfined compression, consolidation and swell tests.