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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.
Disadvantages of cement sand mortor
A circular footing is resting on a stiff saturated clay with qu = 250 kN/m 2 . The depth of foundation is 2 m. Verify the diameter of the footing if the column load is 600 kN. S
Define the Cost per Square Foot of Contact Area The cost of concrete formwork is influenced by three factors: 1. Initial cost or fabrication cost that contains the cost of t
Types of Cement In addition to ordinary Portland cement there are various varieties of cement. Significant varieties are briefly explained below: (i) White Cement: The ce
how can we build a complete home on an area of 500 meter squares with garden and house and a garage
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Question If concrete compression test not pass, So Schmidt hammer test will be adopted as an alternative test to confirm concrete strength ? Answer Schmidt hammer test is
meaning of scale factor
Define Unit Hydrograph UNIT HYDROGRAPH: The hydrograph developed for a drainage basin (watershed) from the runoff of a 1 in or 1 cm storm. It is the base hydrograph from which
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