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QuestionDesign of concrete structures, normally most aggregate sizes are adopted with scopes from 10mm to 20mm. Does an increase of most aggregate size advantage structures? AnswerTo answer this query, let's consider the example of a cube. Surface area to volume ratio of a cube is 6/b that b is the length of cube. This implies that surface area to volume ratio reduces with an increase in volume. Then, when size of maximum aggregate is improved, surface area to be soaked by water per unit volume is condensed. Consequently, water requirement of concrete mixes is reduced accordingly so water or cement ratio can be lowered, resulting in a rise in concrete power. Though, increase of aggregate size is also accompanied by effect of reduced contact areas and discontinuities formed by these larger sized particles. In general, for utmost aggregate sizes less than 40mm, effect of lower water requirement could offset drawbacks brought about by discontinuities as recommended by Longman Scientific and Technical in 1987.
State the process to calculate the Transmission Length It is the distance required at the end of a concrete member for developing the maximum tendon stress by bond.
Explain me about obstacles in chain surveying and what is meant by cross staff,offsets?
The exciting force in a constant force type of excitation was 120 kN. The natural frequency of the machine foundation is 4 Hz. The damping factor is 0.36. Verify the magnificati
use of centroid in civil engineering
the jet transport B is flying north with a velocity vB = 600 km/h when a smaller aircraft A passes underneath the transport headed in the 60 degree direction shown. To passengers i
Find the Cumulative Distribution Function: Find the cdf of Y = Z 2 where Z - N (0,l) Solution: F(y)= P(Y ≤ y) = p(z 2 ≤y) = P(-√y≤ √z≤√y) = ?(√y)- ?(-√y) = ?(√y)
Determine the term - lowering of stresses Due to creep of concrete, these compressive strains keep on increasing with time. it means that the length of the member keeps on red
what is quick cement? its manufacture and uses? in which building it is used?
Describe the Geophysical Profileof Borings The variation in the thickness of the soil stratum for engineering application is known as the geophysical profile. Figure 1.2 shows
Question Have air test or water tests be selected to test leakage of constructed gravity pipelines ? Answer For gravity pipes, air tests are carried out after completi
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