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Define the Cavitation - underwater inspection of bridge?
Cavitation damage is caused by repeated impact forces caused by collapse of vapour bubbles in rapidly flowing water. The appearance of concrete damaged by cavitation is generally different from that damaged by abrasion erosion. Instead of a smooth, worn appearance, the concrete will appear very rough and pitted. In severe cases, cavitation may remove large quantities of concrete and may endanger the structure. Usually cavitation occurs as a result of water velocities greater than 12 m/sec.
Durability requirements for Concrete Even though the alkaline environment of concrete protects steel, carbonation of hydrated cement may decrease the effective protection. The
Reinforcement in thrust blocks In general situation, reinforcement isn't essential for thrust blocks in pressurized pipelines. Though certain amount of reinforcement hasto be
Q. Explain about Overhauling of Level xing? Each level crossing except those laid with PSC sleepers must be opened out and the condition of sleepers and fittings, rails and fas
Explain economical span if bridges
The liquid limit of a clay soil is 56% and its plasticity index is 15%. (a) Name the state of consistency is this material at a water content of 45% ? (b) Determine the plas
derive equation of radial pressure and loop stresses of thick cylinder
how to solve?
Transition Curves: If a vehicle travelling on a straight enters a horizontal curve abruptly, it will cause shock and sway. To avoid this, it is customary to provide a transit
types of arches
A litre of suspension containing 0.5 N of soil with a specific gravity of 2.70 is prepared for a hydrometer test. When no temperature correction is considered necessary, what shoul
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