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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.
what is fly levelling? when it is carried out ?
convert to include bearing 76
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main types of capacitors explanation
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Question What is main difference in application of surface-protecting fenders and energy-absorbing fenders ? Answer Surface-protecting fenders are fenders that make
write a short note on angular messurement using stations?
Discuss about the fibre reinforced concrete Tensile strength of concrete may be improved by using a higher grade of concrete or by using special concretes such as fibre reinfor
what is offset survey and how it is done
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