Material Sampling

APTech owns and operates a trailer-mounted material sampling device that can be used to obtain core and/or auger samples of the pavement and subsurface layers. The coring apparatus is applicable for both HMA and PCC surfaced pavements.

Using diamond tipped core barrels of various sizes, it can obtain core samples up to 24 inches long and with diameters ranging from 3 to 12 inches. The mast of the apparatus is also omni-directional, meaning it can be used to obtain cores from walls and low-lying ceilings in addition to pavements. Samples obtained by the device can be tested in a number of ways to determine layer thickness, unit weight, strength, stiffness, and other intrinsic material properties.

The auger apparatus provides a means of obtaining samples of all unboundlayer materials that exist below the pavement surface. The samples can be obtained up to a depth of 10 feet. Tests can then be performed on the extracted samples to determine moisture content, gradation, densities, CBRs, and overall material classification.