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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.
Maintenance of Terminal Building: All accessories such as lighting, water, sanitation, telephone and public address system should be maintained in a good condition. Disposal
Question If In case a road passes from side to side a reclaimed land and an existing land, what is key main concern regarding design of pavements? Answer For a breathin
On a per pound basis, steel pipe is stronger in bending and is less likely to buckle in axial compression.
Rock reinforcement - how it works? For rocks with widespread fractures, individual blocks resulting from these fractures can fall out and as a result slope failure can take pl
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Most of the existing rubber dams are of air-filled types. Water-filled rubber dams aren't preferred for the below reasons: (i) By giving same sheet length and dam height, tensi
Q. There is a railway colony of 500 house holds source of water is from a tube well 800 m away. The colony is 10 m higher then the ground at source. Tube well is 60 meters deep. De
How to prove varignon theorem in easiest way
Determine the principle of Darcy's law for laminar flow of water through saturated soil. Illustrate that the coefficient of permeability has the dimension of velocity. The d
Vertical Curves: When two vertical gradients meet, it is necessary to provide a vertical curve. Two types of vertical curves are used: (a) Summit curve, where the point of
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