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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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Spatial Structures Loading Dead load Dead loads include the weight of permanent components such as elements and spheres weight, casing weight, false ceiling weight and uti
Aggregate Crushing Test: In which the layer of aggregates in a cylindrical measure is subjected to a compressive load of 40 T, and the per cent fines generated are determined,
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Hi need help with designing a 10 story concrete building with basement car park. Need help with calculations in line with eurocodes. Is this something you can help with?
Q. Show the Silt curtain touching seabed? Silt curtains are impermeable vertical barriers extending from seawater surface to their designed depths. Curtains are held in a verti
All semiconductors have how many electrons in their last orbit? Answer: All semiconductors have 4 electrons.
how to draw a regular hexagon using semicircle method
Question In all-purpose Specification for Civil Engineering Works, it details temperature requirements for bituminous material all through and after mixing. What is cause beh
Landslides: Landslides are common in the Himalayan hill roads. The main causes contributing to landslides are: (a) Removal of lateral support at the bottom of a hill due t
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