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Light-weight Aggregate Prestressed Concrete
The use of light-weight aggregate concrete for prestressed concrete construction is well established. The main advantage of light-weight concrete is that it reduces the self-weight of the structural components. Because of this the amount of concrete and prestressing steel required for carrying the load is reduced. This type of concrete becomes important in long span structures where the self-weight of the member is an important factor to be considered for the determination of the design load of the structure. This eases the transportation of the members also.
Details of a simply-supported beam are given in Figures (a) and (b). Note that the dead load, g includes the self weight. Design the transverse shear reinforcement in ter
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Semi Dense Bituminous Concrete: Semi Dense Bituminous Concrete (SDBC) is similar to BC, but with a higher void content (5-10 per cent, as against 3-5 per cent in the case of
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