North Dakota Cone: 2720 (Part Xxxii)

Model HV-EXP165
Developed by the North Dakotra Highway Department foruse with a pavement design method similar to thatassociated with the California Bearing Ratio Test. This test issimple and more rapid than the latter and can be easilyapplied in site field test. The instrument consists a rodcarrying a loading platform at the top and a hardened. steelcone at the bottom. The rod is mounted vertically and slidesfreely up and down in the collars of the frame and can belocked In any position as required. The conical tip penetriesthe soil through an aperture in the cast iron base. The loadingplatform carries a graduated plunger which enters one of theslide supports and permits the reading of the penetrationcorrect to 1 mm (without weight). Set of 7 weights 5 kg. eachfor use with the above..