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Explain about the Hydrogen Embrittlement
As a result of the action of acids on high-tensile steels, liberation of hydrogen takes place. It penetrates into the steel surface and makes it brittle and fracture prone. Even small amounts of hydrogen can cause significant damage to the tensile strength of high-tensile steel wires. Use of high-alumina cement and blast furnace slag cement can cause hydrogen embrittlement in wires. In order to prevent it taking place, it is essential to properly protect steel from the action of acids. Protective coverings should be provided over the tendons for this puruose.
Determine the types of untensioned Reinforcement Reinforcement used as untensioned steel should be one of the following types : (a) Mild steel and medium tensile steel bar
Thermodynamics is concerned with the conversion ofheat into mechanical energy or vice versa. Heat usually generated through combustion of fossil fuelor nuclear reaction. Exa
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Question What are main dissimilarities in function between rock anchors and rock sockets ? Answer Rock anchors are used first and foremost for resisting uplift forc
Q. Write short notes on Aqua Privy Latrine? There are a sort of latrines also called septic tank latrines. These are constructed over septic tanks & flushing is also provided.
What are the functions of a column in a building? Ans) A column is used to handle the weight of the roof and/or the upper floors. Now days, many columns are used for decorative
partition walls
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