Length 5 cm Core Cutter with Dolly and Rammer, Material MS

In, Situ dry density by core cutter method aim to determine the in, Situ dry density of soil by core cutter method according to the established guidelines 2720 part xxix, 1975. Apparatus i cylindrical core cutter ii steel dolley iii steel rammer featuring precise, Iv balance measurements of 1g v straightedge vi square metal tray, 300mm x 300mm x 40mm vii trowel procedure i the internal volume v of the core cutter in cc should be calculated from its dimensions which should be measured to the nearest 0. 25mm. Ii the core cutter should be weighed to the nearest gram w1 . Iii a small area, Approximately 30cm square part of the soil layer to be tested should be exposed and levelled. The steel dolly should be placed on leading edge of the cutter and the latter should be rammed down vertically into the soil layer until only about 15mm of the dolly protrudes above care being, The surface taken not to rock the cutter. The cutter should then be dug outside of the surrounding soil, Care being taken to allow some soil to project from the lower final segment of the cutter. The edges of the soil core should then be trimmed flat in level with the ends of the cutter utilizing the straightedge. Iv the cutter containing the soil core should be weighed to the nearest gram w2 . V the soil core should be taken out of the cutter and a representative sample should be placed in an air, Tight container and its water content w determined as in para reporting of results mass density of the soil = w2, W1 /v g/cc dry density of the soil d = 100 / 100, W g/cc