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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.
Retaining Walls: Needed to retain the fill portion, and generally constructed in dry stone masonry with pucca bunds (Figure). Figure: Typical Design for a Retaining
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Brick Pavement: In regions where stone aggregates are not available within economical leads, bricks provide a cheaper alternative. Flat-brick or brick-on-edge pavements provi
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1. The center line elevation of the proposed roadway at station is 345+25.50 is 327.36-ft. The existing ground top of cut elevation (ft) is most nearly: 2. A design engineer c
State the effect of stretched tendons The effect of stretched tendons inside the concrete components is just like a stretched spring. If a spring is stretched it would like to
A square pile group of 9 piles passes by a recently filled up material of 4.5 m depth. The diameter of the pile is 30 cm and pile spacing is 90 cm centre to centre. If the unconfin
Project Management: This unit starts with the general definition of Project management. Several phases involved in project management are also desribed. Further, the technique
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