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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'.
Deternim the angle A for which the moment of the 500N force is maximum about a point o. also find the maximum momentum
Explain the Anti Slip Devices - Bridge Bearing? It has been explained earlier that elastomeric bearings have a tendency to slip if the minimum normal pressure is less than 2 MP
relation between shear force and bending moment and examples based on those relationship
send any civil engineering related questions . i will write the answers , please tell us the process .
Define the In-depth inspections for Bridge? In-depth inspection is a detailed inspection of one or more members below the water level to detect any deficiencies not readily app
describe setting out right angle at given point on a chain line and when the point lies outside the chain line
Q. What is Oil interceptors ? Oils and Grease are usually found in stormwater runoff from catchments. They come from spillage and leakage of fuels, lubricants, Vehicle coolants
Ceramics is what type of materials ? Answer: It is an insulators.
Strength of member when fillet welded
Purpose of embedding puddle flange inside the walls of closed valve chambers When valves are closed to stop water flow in a pipeline, a thrust is produced along the direction o
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