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Durability requirements for Concrete
Even though the alkaline environment of concrete protects steel, carbonation of hydrated cement may decrease the effective protection. The codes give guidelines regarding the minimum cover to be provided to the reinforcement and the density of concrete for this purpose.
Cross-sectional area of flow (ft 2 ) (A) For rectangular channels = (w)(d). For trapezoidal channels, divide the flow area into two side triangles and one center rectangle, so
Define Limitations of Radiography - Underwater Inspection of Bridge? i. Radiography is a costly and time consuming method, which re- quires extensive safety measures to be adop
Importance of racking load for a pre-stressed concrete beam Evaluation of cracking load for a pre-stressed concrete beam member is important for the following cases/reasons.
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
Define rocks,types of rock,rock formations
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
What is exogenous tree?
floors
a) Certain data for the materials used in the construction of the building, e,g, insulation, building materials, air spaces, etc. b) Draw, with appropriate dimensions, the cro
Q. A bridge is to be constructed over a stream having a catchment area = 20 miles 2 partly in plains and partly in hills. Portion in hills has a length of 1.7 miles and fall of 88
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