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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.
Q.7.- Write the important items to be inspected during level Crossing inspection. How do you take census of traffic at level crossing. Ans.-Important items to be inspected duri
Q. Differences between open shield and closed shield? Open shield type TBM refers to those providing lateral support only. They can be further classified into single shield and
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Q. What is the importance of General and subsidiary rules. What is the main differences between the two. Ans.- Importance of General and subsidiary rules - General and su
We need eng. calcs for a deck 17''x 10 feet.attach to the guest house. calculations will be for 230 psi snow load . in the city of Mammoth lakes Ca. deck is supported for 3 girder
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The liquid limit and plastic limit of clay are 100% and 25%, respectively. From a hydrometer analysis it has been found that the clay soil having of 50% of particles smaller than 0
what is the importance of plagiarism in civil Engeneering
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