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Stone Soling:
One of the early practices in road construction was to provide a stone soling 150-225 mm in thickness. The stones are laid by manual labour, and stone spalls are inserted and driven by hammer to fill up the voids. The layer is then rolled, applying blinding material such as sand, gravel, murram or screenings and watering. This specification is not practiced in India now because of the following disadvantages:
(a) It is practically impossible to fill up all voids. The voids left are then liable to be filled by the sub-grade soil working up. This will cause loss of strength when wet.
(b) There is no interlocking resistance because the stones are single size.
Soil in Road Construction: Road Embankment and Sub-grade Soil is mainly used as the material for constructing a road embankment. The road embankment supports the road
what is focal point ratio
Q. What are advantages and disadvantage of varnishing? Varnish is a clear pale solution of a resinous substance ( like amber, common resin, copal, lac, or shellac 0 dissolved i
Given: pretensioned rectangular beam b=6" h=20" f'c=4000psi f'ci=3000psi fti=.165ksi fts=.38ksi fci=1.8ksi fcs=1.8ksi R=0.80 Required: (a)Pi and e to maximize Md+
Define the Thiem Equations for Confined Aquifers Using natural log: Q = 2ΠKm(h 2 - h 1 )/ln(r 2 /r 1 ) m = aquifer thickness (ft) Using log 10 : Q = 2Km(h 2 - h
Define the Spalling - underwater inspection of bridge? A spall is a roughly circular or oval depression in the concrete. Corroding reinforcement can cause spalls and reinforcin
Storm Water Drainage: In city streets, the disposal of rain water has to be done through a system of underground storm water drains. The water is collected at the roadside ke
Actually my course name is energy and sustainable building design Do you know the building physics
length of the line measured with 20m chain found to be 250m.calculate true length if the chain was 10cm long
what is the heat of hydration and gel space ratio?
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