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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.
Q. Explain the process of Directed Track Maintenance? DTM is a method to maintain the track is directed every day and not as a prescribed routine. DTM essentially consists of n
Question What are main dissimilarities in applications between pipe culverts and box culverts ? Answer Essentially, culvert resources covered hydraulic structure that conveys fl
what is the application of silica,aluminaand magnesium in bricks?
Determine the loss of fluid energy as 310 gallons per minute (gpm) of water flows through 1,000 ft of 4 inch, schedule-40 welded and seamless steel pipe. The fluid temperature is 5
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Remedial measures for Problems in Turbid Water - Reflection? The problem of reflection can be minimised by carefully placing the flash away from the axis of the camera and at a
A rectangular foundation, 2 m × 4 m, transmits a uniform pressure of 450 kN/m 2 to the underlying soil. Verify the vertical stress at a depth of 1 metre below the foundation at a
what is the total volume required for the gravel material of 6.5mx2314mx0.1m with a relative density of 2.919 and a loose bulk density of 1668kg/m3
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