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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.
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define surveying and where it is involved
Question What is problem in traditional marine piling system of steel tubular pile with concrete infill and what are key possible remedial measures? Answer In design
Explain the Dupuit Equations for Unconfined Aquifers Using natural log: Q = ΠK((h 2 ) 2 - (h 1 ) 2 )/ln(r 2 /r 1 ) Using log 10 : Q = K((h 2 ) 2 - (h 1 ) 2 )/((1055)l
Q. 50 liters per sec of water flow in a horizontal pipeline which is 200m long and the centerline of which is 3 m above the datum line. The pipe tapers from 30 cm diameter to 20 cm
brief detail about ships stresses
Q. Inspection and Quality Control Certificate : A 'lot' under inspection should be accepted by the inspector when no defect is found in the acceptance level tests and so certif
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
Question While designing reservoirs, indirect tensile strength of the concrete mix is particular to be less than a specific value such as 2.8N/mm2 for potable water. Why ought
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