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Define Reinforcing Steel - Limitations of Ultrasonic System?
The sound velocity measurement taken parallel to the reinforcing bars embedded in the concrete will be markedly higher because sound velocity in steel is 1.2 to 1.9 times the velocity in concrete. The effect is small while the axis of the rebar is perpendicular to the direction of sound propagation and the correction factors are of the order of only 1 to 4% depending on the quality of concrete. It is, therefore, recommended that sound trans- mission paths should be chosen, based on available drawings that avoid the influence of the rebar. If drawings are not available, rebar-mapping equipments may be used to verify the presence and orientation of embedded rebars.
Q. Diffrence between Concrete road and bituminous road? Concrete road belongs to rigid pavement and they don't deflect under traffic loads. Quite the reverse, bituminous pavem
Question What is importance of critical steel ratio in scheming thermal reinforcement ? Answer Execution of critical steel ratio resources that in construction joints,
procedure of drawing free body diagram
The Table provides the cross-sectional areas to be excavated for the roadway construction. The volume of earth to be excavated (yd 3 ) between section 83+65.6 and 85+98.5 is most n
State the term Axial Prestressingin Concrete If the centroid of cross-sectional areas of tendons is at the location of the centroid of the cross-section of the concrete member,
#Determine the smallest value of P and corresponding angle to the inclined plane which is inclined by 30 degree to horizontal to just start the block moving up the inclined plane.
Define the term - permanent load Where the permanent load is less than or equal to 25% of the design imposed load, deflections may be calculated using any elastic method. When
Failure Due to Rupture of Steel This mode of failure is likely in lightly reinforced concrete members in which the ultimate strength of steel is attained before the concrete
Question What are key reasons for conducting pull-out tests for soil nails ? Answer There are largely four bases for this examination- (i) To verify and verify bo
How abrasion and earthquake causes deterioration in steel structures
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