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CEMENT
Cement is a normally used binding material in the construction. By burning a mixture of argillaceous (clay) and calcarious (calcium) material at a very high temperature, cement is obtained and then grinding the clinker so generate to a fine powder. It was first generated by a mason Joseph Aspdin in England in the year 1924. He patented it as Portland cement.
Cleaning and greasing of Rocker & Roller bearings of open web through girders : In case of standard open web through girders, no separate jacking arrangement is required as the en
Vertical Curves: When two vertical gradients meet, it is necessary to provide a vertical curve. Two types of vertical curves are used: (a) Summit curve, where the point of
Q. Maintenance of steel bearings? Cleaning and greasing of bearings is one of the important maintenance works to avoid premature failure of bearings and reduce recurring heavy
Question It should be necessary that raking piles of a bridge abutment be placed under an embankment ? Answer For a bridge abutment to be supported on raking piles with dive
In carrying out pull-out tests for soil nails, it generally requires the unloading and loading of soil nails of several cycles up to 80% of ultimate tensile strength of soil nails.
Question Why do BS8007 specify permissible crack width of water retaining structure as 0.2mm for severe, extremely severe exposure? Answer For break width less than
Q. There is a railway colony of 500 house holds source of water is from a tube well 800 m away. The colony is 10 m higher then the ground at source. Tube well is 60 meters deep. De
derive equation of radial pressure and loop stresses of thick cylinder
Ductility
What is the special feature of this system rather than other?? What do you mean by principal of looping system?
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