• ASTM C42 - Drilled Core and Sawed Beam Tests

    Compression and Beam testing machines can be configured for a vast number of materials and shapes including: Cylinders, Block-in-Prism, Full Block, Half Block, Beams, Cubes, Brick, Bars, Rounds, Bolts, Rebar and Cable. This standard test method provides procedures for obtaining and testing specimens to determine compressive, splitting tensile, and flexural strength of in-place concrete.

  • ASTM C805 - Rebound Hammer or Schmidt Hammer tests

    This is a frequently employed nondestructive test to assess concrete uniformity and estimate in-place compressive strength based on rebound numbers. Calibration of rebound values with the actual project concrete test cylinders provides the most useful data. This test method is not intended as a basis for acceptance or rejection of concrete because of the inherent uncertainty in the estimated strength.

  • ASTM C143 - Slump of Hydraulic Cement

    Slump tests measure the amount the concrete slumps or settles from the original height of 12 inches to the nearest 1/4 inch and record as the slump in inches. The measurement is made between the original height of 12 inches and the displaced center of the settled mass of the demolded concrete. If the test falls outside of the specified range, a check test is typically performed to confirm test results.

  • ASTM C231 - Air Content of Fresh Concrete

    Air-entrained concrete is typically specified in areas of the country where frost-related damage can occur. The measurement of air content in fresh concrete of normal density is typically performed using the pressure method (ASTM C 231). Another useful test is ASTM C 173. However, the pressure method is frequently preferred because it is relatively fast.

  • ASTM C597 - Ultrasonic Pulse Velocity

    Ultrasonic Pulse Velocity Testing measures the speed of soundwaves in a medium. Generally, slower soundwaves correlate with low quality concrete that has defects and anomalies, and faster soundwaves correlate with high quality concrete that has few anomalies. This testing method can be used for Quality Assurance and Quality Control purposes to determine the presence of cracks and their approximate depth.