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Define the meaning of circular prestressing
In circular prestressing, tendon wires are wrapped under tension over the concrete pipes which are pre-cast. The tension in the tendon wires is produced by pulling it through a die. Prestressed concrete pipes are ideally suited for a pressure range of 0.5 to 2 N/mm2. For this pressure range, cast iron pipes and steel pipes are not economical. Reinforced concrete pipes also are not practicable for use as these have limited tensile strength.
Explain the Clearance Interval - Signalized Intersections Also known as "Red Clearance Interval" and "All Red" r = (w+L) / V - If there is no pedestrian traffic r
Explain Fluid Mechanics or Properties – Viscosity A measure of a fluid's resistance to flow when acted upon by an external force such as pressure or gravity. Also termed, "Abso
Significance of tailwater level in culverts Headwater level and tailwater level of culverts are significant parameters in hydraulic design. Headwater level can't be set too la
what are the cement testing?
Q. What is Unimat Machine? The machine has got 16 independently tiltable tamping tools which enable the machine to work on points and crossing as well as on plain track. The ma
A masonry retaining wall is 1.5 m wide at the top, 3.5 m wide at the base and 6 m high. It is trapezoidal in section and has a vertical face on the earth side. The backfill is leve
scientific problem in construction
A pre- engineering base line was run down a very steep hill.rather than measure horizontaily down hill with steel tape: surveyor measured the vertical angle with the theodolite and
define unit
A 16-pile group has to be arranged in the form of a square in soft clay with uniform spacing. Neglecting end-bearing, verify the optimum value of the spacing of the piles in terms
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