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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.
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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State the Design process of Prestressed Concrete Most of the times, the design process is an interactive and trial procedure in which the cycle of analysis - design - analysis
describe the methods of reducing the levels,and their relative advantages and disadvantages.
Define the proess of Eccentric Prestressing In this form of prestressing, the centroid of cross-sectional areas of tendons is not located at the centroid of the cross-section.
designing of guide bunds
Maintenance of Water Bound Macadam Roads: The maintenance of water bound macadam surface consists of : filling potholes, ruts with additional material and adequately c
Q. Why we need Transition slabs in bridges? In a number of designs, transition slabs are provided on the approach to bridges. For example soils in embankment supporting the ro
Question Why is concrete profile barriers planned with curved surface profiles ? Answer Safety fencings are designed to include vehicles in carriageway in that they a
If you have never used an ice dam melting sock on your roof before, you will search that they give an inexpensive method for removing roof ice dams and improving your home's heatin
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