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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. ACSR (Aluminium Conductor Steel Reinforced) are utilized as (A) over head transmission lines. (B) super conductors. (C) fuse
Question In conducting triaxial test to determine shear strengths for soil samples, what consolidation pressures should be specified? Answer It appears that the sele
Q. What is the minimum prescribed track structure for LWR / CWR on Broad Gauge? Ans.- 1. General - The minimum length of LWR depends upon - i. Range of temporary variati
Pavement Drainage: Water enters the pavement layers through cracks, joints and open spaces in the pavement surface. The water reaches the soil sub-grade on which the pavement
A sample of clay taken from a natural stratum was originated to be partially saturated and when tested in the laboratory gave the following results. Calculate the degree of saturat
Calculate the weight of the soil. Go to the first screen. 1. Establish the geometry of the member that you want to design. 2. Each member has to be designed separately.
assignment
working from whole to part
Effect of concrete placing temperature on early thermal movement Rate of hydration of cement paste is related to placing temperature of concrete. Rate of heat production is giv
Q. Which type of pile cap transfers loads equally to piles, flexible pile cap orrigid pile cap? Loads from columns transferring to pile cap persuade tensile forces at the bott
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