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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.
steps in roof design
Binder: Normally 60/70 penetration grade, and provides cohesion to the mixture and increases its stability. The mix design is done by the Marshall test, in which a specimen
What is Thermo-electric prestressing We know that, stretched tendons are used in prestressed concrete. Stretching of tendons may be accomplished by using jacks or by other mea
Q. What do by Diaphragm wall? For the construction of diaphragm walls adjacent to buildings, former experience showed that excess slurry head above groundwater level had to be
Define Channel Jig a) A channel jig is the simplest form of box jig. b) The work is placed in a channel shaped trough and clamped by mean of screw. c) It is utilized
Determine the Basic Concepts of Prestressing In the year 1904, Freyssinet tried to introduce prestresses in concrete to resist stresses developed due to external loads. Later,
shear stress numerical of T section & I section to find maximum shear stress
Bonding performance to concrete: Epoxy-coated bars vs. galvanized bars Based on the findings of CEB Bulletin 211 the bonding of galvanized bars to concrete is lower in early
Define Drag load test of shock transmission unit? This test ensures that excessive load should not be transmitted to the structure by the STU. As per the test the STU shall hav
what is hydraulic grid line
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