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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.
show that Y = 4e2x - 2e-3x is a solution of initial-value problem (d2y)/(dx2)+ (dy)/(dx) - 6y=0 ; y(0)=6 ; y’(0)=2 . is Y = 2e2x - 4e-3x also a solution of this proble
Good evening sir, solid block''s design mix calculated generally please explain and derive .
Explain the term - Non-bonded Prestressed Concrete It is a method of construction in which the tendons are not bonded to the concrete. Ducts, housing the tendons, are not grout
can I have some help with a site plan. I want it on autocad, I have all the dimmension
Design of prestressed concrete pipes The design of prestressed concrete pipes should cover the following five stages : (a) Circumferential prestressing, winding with or wit
stress-strain diagram for steel
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Q. What do you mean by Base fixity? Base fixity When structures such as portal frames are associated to the base foundation, engineers have to determine the degree of fix
Currently I am struggling with masteringengineering.com So is it fine to give you my username and password so you could solve my problems. please show your work.
Road Pavements: Pavements constitute an important part of road as they withstand the traffic loads and transmit them to the earthen embankment. A study of the types of pavemen
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