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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.
effective length of the column
Schedule control is concerned with all of the following except: a. Influencing the factors which create schedule changes b. Determining that the schedule has changed c.
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• The transmission of load through a structure can be complex but in any particular case - The applied load can usually be classified into 4 types •
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a. We put a lot of time and effort into cultivating our activated sludge microbial community. So why do we waste sludge out of it? b. A wastewater discharges to Puget sound, a mari
I only want Part 1 of this order, can you adjust the quote?
what is flush joint and confined joint in rcc spun pipes?
planking and strutting for shallow excavation
State the short-term deflections If short-term deflections are considered, the instantaneous deflection due to design loads may be calculated using elastic analysis based on t
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