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Explain the term - Prestressing Force
Due to the stretching of tendons, tensile stresses develop inside tendons. Resultant prestressing force in tendons may be calculated by multiplying these tensile stresses to the cross-sectional area of tendons. When this tensile prestressing force of tendons is transferred to concrete, it produces equal compression in concrete.
The stresses acting on the plane of maximum shearing stress by a given point in sand are as follows: total normal stress = 250 kN/m 2 ; pore-water pressure = 88.5 kN/ m 2 ; shearin
Define categories of Spalls -underwater inspection of bridge? Spalls are classified as follows: i. Small spalls - up to 25 mm deep or approximately 150 mm in diameter. i
Question Explain the reason why is sulphate-resisting cement not used in marine concrete ? Answer Major components of Portland cement are tricalcium silicate, dicalciu
Define Radiography - Underwater Inspection of Bridge? Radiographic non-destructive examination of components is based on the phenomenon that materials absorb radiation energy a
concrete strength
Q. What are the various impurities in water? Ans.- Impurities in water - The impurities in water are classified as - i. Suspended Impurities. ii. Colloidal Impuritie
Pavement Drainage: Water enters the pavement layers through cracks, joints and open spaces in the pavement surface. The water reaches the soil sub-grade on which the pavement
Question For a l ong slender structure similar to beams, propping is compulsory after elimination of formwork with reasons? Answer After concreting, time at which arresting of
define
Given: beam deminsions: flange width=22" FLANGE THICKNESS=7" WEB WIDTH=7" SECTION HEIGHT=40" f'c=5000psi f'ci=3500psi fpu=270ksi Ap=eighteen 1/2" diam strands superim
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