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QuestionGeneral requirement for Civil Engineering Works in 1992 Edition, Clause 15.09 details that tying wires for strengthening adjacent to and above Class F4 and F5 closes must be stainless steel wires. Give genuine reasons? AnswerIf plain steel tying wires are utilize for reinforcement adjacent to Class F4 and F5 closes, it poses problem of rust staining that may impair appearance of uncovered concrete surfaces. Speed of corrosion of plain steel tying wires is alike to regular steel reinforcement. Yet, for tying wires with extremely tiny diameter, upon long exposure it stands a high possibility of rusting finally and this rust will stain formwork and significantly involve concrete finish. Then, stainless steel tying wires are specified for locations in vicinity of high excellence of finishes to keep away from rust staining by corroded typing wires.
Question-Why is span length ratio of end span, approach span to its neighbouring inner spans typically about 0.75? Answer-From aesthetic point of view, odd number of span
Explain the Hydraulic Gradient A measurement of the movement of water over distances. Change in hydraulic head from one monitoring point to another. i = ΔH/L units are typ
Q. Necessity of pile tip cover for rock-socketed H-piles? In current practice concrete cover is generally provided at the pile tips of pre-bored H-piles socketed in rock. The o
Q. Protection of line in case of ‘STOP DEAD RESTRICTION' for carrying out a work of short duration on a single line section on a B.G. route Ans. Protection in block sectio
Q. Sand layer vs. cement sand used as bedding of precast concrete paving units Cement sand is a mixture of sand and cement and it behaves as a cohesive mass once mixed. Usuall
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The ferromagnetic materials loos property at which point? Answer: At Curie point it loos property
Elaborate the term - Prestressed concrete pipes Liquid retaining structures, such as circular pipes, tanks and pressure vessels are suited for circular prestressing. The circum
In engineering, the code-allowable withdrawal force is zero, due to the wood expands and contracts over time and the nail pullout force can decrease to zero
Reinforcement of concrete in contact with internal vibrators At the time of concreting, if internal vibrators are placed accidentally in contact with some of the reinforcemen
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