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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.
Differentiate between concrete and tendons In the case of pre-tensioned concrete members, the transfer of prestress takes place due to the bond between concrete and tendons. In
Question Why do BS8007 specify permissible crack width of water retaining structure as 0.2mm for severe, extremely severe exposure? Answer For break width less than
Q. What do you mean by Synoptic Coverage? Depending upon the area of interest, areas covering few hundred sq m to thousands of sq km can be suitably collected and studied. Phot
What are the conditions essential for Darcy's law to be applicable for flow of water by soil ? Why is the permeability of a clay soil with flocculated structure greater than tha
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
Explain Stopping Sight Distance on Horizontal Curve Section Obstructions along the inside of curves can limit the available (chord) sight distance. A curve must be designed tha
Q. How to design Marginal Embankments? Design aspects of marginal embankments are similar to those of approach banks. The aspects needing special attention are dealt with below
Q. One-way pre stressing vs two-way pre stressing? At the time of pre-stressing operation at one end, frictional losses will take place and the prestressing force decreases alo
discuss various chemical reactions involved in lime soda process ?
meaning of ferrule
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