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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.
Question For classic pile bents in marine piers, how can vertical loads related to horizontal capability of pile bents? Answer At first consider a pile bent with a top
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A concrete batch plant provided the Design Strength for the engineer's mix design to match the project's specification requirement for a 4000 psi Tremie pump mix. The Water-cement
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Question In the designing of a simply supported skew bridge , which direction of reinforcement must be provided? Answer In conventional design of steel reinforcement f
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Define the Disintegration - underwater inspection of bridge? Disintegration of concrete may be defined as the deterioration of concrete into small fragments or particles result
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Question Give genuine reason that why are steel tubular marine piles often driven open-ended? Answer In marine structure where piles are constantly topic to major la
Explain Critical factor in Design of shock transmission unit? (a) STUs are unidirectional devices for load transmission. If out of plane forces will be acting on the STU, the a
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