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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.
Define Surface Water Treatment Rule (SWTR) SWTR sets forth primary drinking water regulations requiring treatment of surface water supplies or groundwater supplies under the di
Q. There is a colony having 15 blocks of Type - II quarters, each block having 8 quarters. Make out a diagram of distribution pipelines from an overhead tank and up to the quarters
If the standard deviation of an observation is ± 10-ft, the most probable error would be: The most probable error is defined as the error for which there are equal chances of t
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Maintenance of Earth Roads: The main task in maintaining the earth road is to ensure that cross-section is intact and is free from rutting, depressions and corrugations, and
Classification of the damage according to the type of structures The level of damage in spatial trusses has also been classified into three different levels based on the t
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Calculate the Poissons Ratio: In separate experiments, Young's Modulus and Rigidity Modulus of a material have been determined as 120 GPa and 50 GPa respectively. Calculate th
define principles of survey
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