SSC JE Civil Engineering 2018 Set 4 Solved Paper

In a slump test-
● Mould shape : Frustum of a cone
● Dimension of mould: height 30 cm, bottom diameter 20 cm and top diameter 10 cm.
● Dimension of tamping rod- made up of steel 16 mm diameter, 60cm long and rounded at one end.
● Concrete mix in 4 approximately equal layers.
● Tamp each layer with 25 strokes in a uniform manner