2. A rectangular beam has b=300 mm and an effective depth of 490mm concrete compressive strength f'c = 27.6MPa and steel yield strength fy=276MPa, Calculate the required tension steel area if the factored moment Mu = 100 KNm. Also recommend the number of 20 mm diameter bars to be used.

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Highway Drainage

Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.