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Concrete Pavement:
Thickness
The thickness of concrete pavements is determined from the stresses induced due to loads and temperature. The thickness adopted is generally 30-35 cm for highways and 15-20 cm for low volume roads. The concrete used is of high strength and is of M-40 grade for highways and not less than M-35 for low volume roads.
A sub-base of 100-150 mm thick dry lean concrete (DLC) of strength M-10 is provided below the pavement layer. An antifriction layer of plastic sheet 125 micron is provided between the slab and DLC. A drainage layer is provided for draining any water that enters the sub-grade.
Cost-Volume-Profit and Break Even Analysis: Cost-volume-profit analysis helps us to learn the behaviour of cost and profit in response to varying level of business activity. I
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what is economic span?
Question Should reversible moisture movement be taken into account in estimating movement for movement joints ? Answer Size of concrete is affected by changes in dist
properties of coarse and fine aggregates
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