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QuestionWhat are the key problems if use pumping for concreting works?
AnswerIn pumping operation, force exerted by pumps have to overcome friction involving concrete and pumping pipes, weight of concrete and pressure head when placing concrete above pumps. In actuality, as only water is pump able, it is water in concrete that transfers force. Major problems associated with pumping are effect of isolation and bleeding. To rectify these adverse effects proportion of cement is increased to improve cohesion sequentially to decrease segregation and bleeding. On other hand, the proper selection of aggregate grading helps to get better pump capability of concrete.
while designing the lug angles with the channel section what does "the force not acccounted for by the direct connection of member" mean?
Q. Why we need Transition slabs in bridges? In a number of designs, transition slabs are provided on the approach to bridges. For example soils in embankment supporting the ro
Compare the probabilities: Use the central limit theorem to compute P (¦ X - μ ¦ ≥ k), k = 1, 2,3,4,5 where X and μ are as defined in Example. Compare the probabilities with t
Classification of Bricks Based on their Quality The bricks used in construction are classified as following: First class bricks Second class bricks Third class bric
Q. Write short note on Stock Verification? It is desirable that there should be a frequent reconciliation of the balances as shown in the numerical ledgers kept by the subordin
Define Installation of Pot Bearings? In a sliding POT bearing, positive fixing to the main structure may not be required if the bearing is always subjected to adequate vertical
how can i get the centroids of the a given curve?. is there''s a formula for?
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Flash Point Test: The flash point is the temperature at which the bitumen gives off vapours which ignite in the presence of a flame. The flash point temperature gives the cri
Alluvial Streams: In alluvial streams, the regime width of a river is calculated from the Lacey's formula : W = 4.8 Q ½ where W = Regime width in m, and Q = Discha
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