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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.
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
Soil Compaction: Soils used in road construction need to be thoroughly rolled and compacted. Compaction of soil is needed for the following reasons. (a) A well compacted s
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Determine the minimum speed of the stunt rider, so that when he leaves the ramp at A he passes through the center of the hoop at B. [5 Points] 2. How far h should the landing ramp
define of couple
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Q. A bridge is to be constructed over a stream having a catchment area = 20 miles 2 partly in plains and partly in hills. Portion in hills has a length of 1.7 miles and fall of 88
Q. State different types of chlorination processes available in Railway & market for disinfect ion of water. What type of chlorine used in the above different process. What do you
I have a steel design assignment for my class that will be given to us on Friday at 6 pm and will be due at 10 pm. I was wondering if you guys would be able to help me with that?.
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