Scientific Laboratory Equipments
Sampling tubes for collection undisturbed samples of 38mm dia for triaxial strength and unconfined compressive strength either straight from the field or from a sample of larger diameter. The wall thickness is maintained approximately 17 per cent. Both relieved and unrelieved sampling tubes are available. In the relieved type of tube, the internal diameter is relieved by about 0. 5mm (inside clearance 2%) beyond approx. 19mm length from the cutting edge of the tube. This is most suitable for highly cohesive soils. In the unrelieved type, the internal diameter is uniform through out. This type is most suitable for soil of low cohesion. These 38mm dia tubes are available in different lengths. Unrelieved(a)150mm, (b) 200mm, (c) 225mm (d) 300mm long.
Relieved(a) 150mm (b) 200mm, (c) 225mm, (d) 300mm long.
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