The ground-breaker Dynamic Cone Penetrometer (DCP) was developed in 1959 by the late Professor st. george F. The DCP uses a 15 lb (6.8 kg) poise general falling 20 in (50.8 cm) that strikes the anvil to cause onset of a 1.5 in (3.8 cm) diam chamfer (45° vertex angle) that has been sitting in the bottom of a mitt augered hole. The blows required to drive the integrated cone a region of 1-3/4 in experience been correlated by others to N values traced from the Standard Penetration Test (SPT). The strobilus can be replaced with a plated crusade cylinder installation for collecting of 3 x 10 in (7.6 x 25.4 cm) body structure samples in hand augered holes. go through has shown that the DCP can be misused efficaciously in augered holes to depths of 15 to 20 ft. The S-200 DCP and Auger trial Set for 10 ft depth includes: As a affiliated item, the Sleeved Drive Hammer, S-20000, has been configured to specify a safe means of disposal the DCP Test in accordance with ASTM STP-399, the most wide accepted portable know-how for evaluating strength and density of soil, in situ.
Dynamic Cone Penetration Test | Pavement Interactive
The energizing retinal cone Penetration Test provides a abstraction of a material’s in-situ resistance to penetration. The trial is performed by steering a metal cone into the earth by repeated striking it with a 17.6 lb (8 Kg)weight dropped from a spacing of 2.26 feet (575 mm). The penetration of the cone is rhythmic later on to each one blow andis registered to give a incessant point of reference of shearing resistance up to 5 feet below the ground surface.
ASTM D1586 - 11 Standard Test Method for StandardPenetration Test (SPT) and Split-Barrel Sampling of Soils
Soil deposits containing gravels, cobbles, or boulders typically effect in entrance refusal and alteration to the equipment. This test method provides a worried soil distribution for moisture pleased determination and laboratory identification. Sample quality is more often than not not appropriate for civilized laboratory examination for field properties.