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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.
A raft of size 4 m-square carries a load of 200 kN/m 2 . Verify the vertical stress increment at a point 4 m below the centre of the loaded area using Boussinesq's theory. Compare
Determine the minimum speed of the stunt rider, so that when he leaves the ramp at A he passes through the center of the hoop at B. [5 Points] 2. How far h should the landing ramp
Properties of Stones The following properties of the stones should betake into account before choosing them for engineering works: Structure: The structure of the stone ca
The local survey crew measures a distance of 1,135 ft of new drainage pipe that is required for the new road construction. The beginning point for the drainage is located at statio
List out the permanent adjustments of dumpy level.
concrete strength
explain re inforced brick work?
What is the Long Term Effects - Concrete Long term effects of loads on structures consider all the effects including creep and shrinkage.
The material that have lowest resistivity is Answer: Silver is the material
Define Installation of Pot Bearings? In a sliding POT bearing, positive fixing to the main structure may not be required if the bearing is always subjected to adequate vertical
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