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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 the types of levelling
Question Would a concrete structure be entirely free of expansion joints and contraction ? Answer Consider that concrete structure is not subject to problem of disparity settlem
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
How did street originate in the plumbing term street ell? Ans) A "street ell" may have gotten its name due to it describes a 90° fitting particularly useful in tight, street dit
the jet transport B is flying north with a velocity vB = 600 km/h when a smaller aircraft A passes underneath the transport headed in the 60 degree direction shown. To passengers i
The continuous one-way slab shown below is loaded with a uniform service live load of 80 psf, and a superimposed dead load of 40 psf. Assume the beam width is 16" and use f'c = 5 k
Methods of Constructing Roads in Marshy Areas: The following methods are adopted for constructing roads in marshy areas: (a) Removal of soft soil and replacement with good
Q. How to design Shape of guide bunds? Alignment of guide bunds converging on the upstream was considered by Bell, Spring and Gales to allow for the waterway obstructed by pier
Ask que1. Identify the risks involved in this project related to cost in the perspective of the customer and analyse the probability of acceptance of such a project by customers. 2
Feactures and uses of distomat
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