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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.
What is Froude Number? Used to determine if the flow is rapid, critical or tranquil. Fr = 1 critical flow; Fr 1 supercritical flow In rectangular open channels: Fr =
A soil sample consists of particles ranging in size from 0.6 mm to 0.02 mm. The average exact gravity of the particles is 2.66. Verify the time of settlement of the coarsest and fi
derivation for above topic
reparation of subgrade in sqm for a road of span 12 km and width 5.25m,with shoulders of 0.75m span on both the sides...considering extrawidening too......plz help...i m preparing
Magnitude of torque - bending moment: A prismatic bar of hollow circular cross-section along with outer and inner diameters 100 mm and 80 mm correspondingly, carries a bending
Explain the Suppressed Rectangular Weir If the length of the weir (b) equals the width of the channel, i.e., the flow is not "contracted".
Step by step rehabilitation strategies with drawing, figures, and illustrations
In this question we consider a bended outlet of pipe flow AB. End A is attached to an incoming pipe by a flange connection. The pipe diameter at A is the same as the incoming pipe,
Loss of prestress due to elastic shortening At the transfer of prestress, tensile stresses of tendons are transferred to concretc in the form of compressive stresses. Due to t
Tests on Bitumen: The following tests are conducted on bitumen to find its suitability as a road binder : (a) Penetration test (b) Softening Point test (c) Flash Poi
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