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Q. Application of bitumen to driven piles?
In a certain area of H-piles subjected to ground water table fluctuation, painting is occasionally applied on the surface of H-piles because the rise and fall of water table contribute to the corrosion of H-piles. Conversely to decrease the effect of extra loads brought about by negative skin friction, bitumen is applied on the pile surface corresponding to the region of soils which has negative skin friction. Though bitumen must not be applied to the whole section of H-piles since it will be unable to derive the designed frictional reaction from soils. Essentially some engineers have reservation of the effectiveness of bitumen slipcoat since bitumen can get removed during pile driving.
Q. Purpose of setting minimum amount of longitudinal steel areas for columns? In some design codes it specifies that area of longitudinal steel reinforcement must be not less
Q. Segmentally lined and Sprayed Concrete Linings tunnels? The fundamental difference between segmentally lined tunnels and SCL tunnels is that the sprayed concrete in SCL tunn
Q. Write short notes on the following : a) Points to be kept in mind while collecting water samples for testing from tap, stream & T/well separately. b) Where and why foot
Properties of Bricks The required properties of good bricks are following: A. Color: Color should be bright and uniform. B. Shape: Bricks should have plane faces.
In carrying out pull-out tests for soil nails, it generally requires the unloading and loading of soil nails of several cycles up to 80% of ultimate tensile strength of soil nails.
Define the Abrasion - underwater inspection of bridge? Abrasion damage is caused by continuous action of external forces on the surface of the concrete element. Erosive action
Q. Method of construction of a bored cast-in-situ concrete pile? Ans. - Bored cast-in-situ concrete pile - A guide casing of 3 to 4 m length is provided on top of the bore hole
RMC
Consider a diver weighing 200 Ib at the end of a diving board that cantilevers out 3 ft. The diver oscillates at a frequency of 2 Hz. What is the flexural rigidity E I of the divin
A clay stratum of 18 metres thickness was found above a sand stratum when a boring was made. The clay was consolidated under the present overburden pressure. The hydrostatic pressu
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