wat is the optimum mix design for M25 grade of concrete ?
is the ratio 1:1.5:3.65 correct?
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Answer Posted / mahendra mohan srivastava
My last answer has a typing error here M25 will 1:1:2.
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the water is flowing through a velocity of 1.5m/s in a pipe of length 2500m and dia 500mm. at the end of pipe a valve is provided. find rise in pressure 1. if the valve is closed in 5 seconds. 2. if the valve is closed instantaneously. take value of c = 1460m/s, pipe to be rigid and bulk modulus of water - 19.692x10' n/sqcm
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