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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'.
Enumerate the term - Failure Due to Crushing of Concrete Over reinforced pre-stressed concrete members, provided with a large amount of pre-stressing steel or relatively small
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Example for Beam Flexure Design Select the lightest W section for the simply supported beam shown below. The beam length is 12ft. The nominal loading is: w d = 4.0 kip/ft (i
am currently doing my masters degree in highway,please suggest for me topics i will research on
description and details about distomat
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Necessity of reinforcement in precast concrete manhole units Precast concrete manholes are generally constructed by placing the bases of manholes firstly. Walls of precast man
What is preset mean while installation of bridge bearings ?
Q. Compacted thickness of bituminous pavement? The choice of compacted thickness is closely related to the nominal maximum size of aggregates of bituminous materials. Based on
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