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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.
Crack width limitation ( In many standards and code of practice of numerous countries, allowable size of crack width is generally limited to less than 0.5mm for reinforced conc
A raft, 8 m × 24 m, is founded at a depth of 4 m in sand with a value of N = 20 up to great depth. Illustrate the total load which the raft can support? What will be the total c
Explain with lime soda process?cold lime soda process&hot lime soda process and it''s equations?
Define Special considerations for underwater inspection? Once a diver enters the water, there environment changes completely. Visibility decreases and is often reduced to near
A rectangular channel, 20ft wide is shown. The channel consists of three reaches of different slopes. The channel has a roughness coefficient of n=0.015 and carries a discharge of
Explain Rapid Mixing Tank For the chemical reactions to occur, the chemicals must be mixed with water for both coagulation and softening we need mixing of chemical wi
triangle of force
LIME It is significant binding material utilized in building construction. Lime has been utilized as the material of construction from ancient time. While it is mixed with san
what are the obstacles in chain survey in brief
Q. Do you mean by Accelerated Aging? Accelerated ageing tests are conducted at elevated temperature of 100 o C to know the variation in hardness, UTS and elongation at break.
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