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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.
Indian Standard Codes All of the major countries like India, UK, USA, and Australia have their own standards for material standards, design procedures, testing standards, and
Determine the latitude and departure of each side of the closed traverse ABCDA. Total the latitudes and departures. TIP: For Closed Traverse, Sum of Latitudes is Z
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what is the difference between whole circle bearing and reduced bearing?
definition
composition of cement in cover bag should be written or not/ If written which country uses ?please specify the name ?
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what is whole circle barring
Q. What is Rail Lubricators? 1. P & M type of lubricators - These lubricators can be used for lubrication of FF rails as well as BH rails. 2. Elgi grease pump - Elgi Bucket
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