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Q. Underwater problems in bridge construction?
The major bridge construction materials are steel and concrete. In the past, stone and brick masonry, with lime mortar as binding agent, have been used extensively for building bridges. Cast iron piles have been used as substructure in many bridges. These materials are prone to different types of failure and, therefore, require different inspection strategies. The major problem in steel bridges is corrosion. Concrete bridges are susceptible to spalling and scour. Bridges built in masonry have the problem of deterioration of brick / stone elements accompanied with loss of mortar. Aquatic environment has significant effects on bridges in addition to those mentioned above. Heavy current is especially destructive. Floods cause damage from rapidly moving water as well as from the impact of large moving debris. The bridge substructure can also get damaged due to accidental man inflicted causes and earthquakes.
"Mortar mechanism" vs. "stone contact mechanism" in bituminous materials 'Stone contact mechanism' applies to well graded aggregates coated with bitumen (for example dense bit
Pavement Width: The pavement widths commonly adopted are : Single lane : 3.75 m Intermediate lane : 5.5 m Two lane
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.
Q. Explain types of bearings? The bearing transfers the forces coming from the superstructure to the substructure. It also allows for necessary movements in the superstructure
Would there be a difference in the result of an underwater rebound hammer versus a typical rebound hammer?
The 6 monthly payment application for the construction of a $70,000,000 University dormitory is analyzed and the summary accounting show: the budgeted cost of work performed is $14
Enumerate about the Bonded Member It is a concrete member in which tendons are bonded to the concrete. They may be directly bonded to the concrete as in the case of pre-tension
Q. Show the process of Waterproofing for bridge decks? Waterproofing materials such as membranes are applied on top of bridge deck surface since: (i) Vehicular traffic (f
Tensile stresses It has been possible to introduce tensile stresses of upto 850 N/mm 2 in tendons with the use of this method. But the method is not suited in situations where
Explain the Routine inspections - inspection of bridge? These determine the physical and functional condition of the structure, identifying changes from the inventory, baseline
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