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Q. Explain about Bentonite slurry and polymeric slurry?
For the construction of diaphragm walls, bentonite slurry is generally used to form a filter cake on walls of trenches to support earth pressure. Usage of bentonite solely is based on its thixotrophic gel viscosity to provide support.
However the cost of polymer is normally more expensive than bentonite, usage of polymer is increasing since polymer is normally infinitely re-usable and very small amount of polymer is generally essential for construction works. Disposal cost of bentonite is quite high whereas the disposal of polymer may be readily conducted by adding agglomerator.
explain the principle of working from whole to part, as used in surveying
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JOINTS IN MASONRY WORK
What are beneficial points of assigning central pier and abutment as fixed piers ?
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A pile is driven in uniform clay of large depth. The clay has unconfined compression strength of 90 kN/m 2 . The pile is 30 cm diameter and 6 m long. Verify the safe frictional res
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