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An elastomer is a polymeric substance obtained after vulcanization of rubber. Vulcanization is the process of improving the properties of rubber by heating with sulphur. A normal rubber is not useable as it becomes brittle at low temperature and sticky at high temperature. Charles Goodyear had been trying to 'cure' the rubber so that it could be used in all seasons. He tried to mix all kinds of things such as ink, black pepper, cheese and what not. But he couldn't succeed until he dropped a piece of rubber on stove accidentally.
To his surprise, he found that instead of melting the rubber piece hardened and remained pliable. It was found in the lab that it contained traces of sulphur. Goodyear perfected the process and named it 'vulcanization' after the Roman God of fire, 'Vulcan'.
give the two aspects of honesty& explain
What is W.M.M. roads? Where its used ?
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Determine about the Lee-McCall system In the Lee-McCall system, high-tensile strength bars of diameter varying from 12 to 40 rnrn are used as tendons. These bars are threaded a
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A raft, 9 m × 27 m, is founded at a depth of 3 m in sand with a value of N = 25 up to great depth. Verify the total load which the raft can support. If the raft is designed as
I need technical assistance. The project is incomplete. I need someone to proofread it. Do you have someone who know Plaxis, Slope/W and Flac?. Can you arrange a case study for Geo
Explain the Bernoulli Energy Equation Accounts for the fluid energy at any point in a fluid flow system. Units are in ft. Developed for energy without friction. The total energ
difference between bending stress and shear stress
State the effect of shape on the bearing capacity. Differentiate among safe bearing capacity and allowable soil pressure. Write critical notes on (i) foundations on black cot
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