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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 Is it necessary that stiff or soft fenders be designed for berthing in piers? Answer Elasticity of fenders is related to ability to release stored energy duri
Determine the dimension of the vertical side walls for a rectangular open channel designed to convey 150 cfs of storm water runoff. The runoff is collected in the parking lots and
Sketches for English bond, Stretcher bond, Header bond, Flemish bond in first & second layer plan, elevation and 3 dimensional view of brick bond.
a) Take into consideration the boiler efficiency, and verify the cost of heating the building, during the heating season, using present oil and gas prices. b) Investigate the i
Ask que1. Identify the risks involved in this project related to cost in the perspective of the customer and analyse the probability of acceptance of such a project by customers. 2
Define the Categories of Scaling? Scaling is classified into following three categories: i. Light scale - loss of surface mortar up to 5 mm deep, with surface exposure of co
The sketch shows a common consumer product called Water Pik. This device uses a motor to drive a piston pump that produces a jet of water (diameter d = 3 mm, temperature T = 10 °C)
Question What are main dissimilarities in function between rock anchors and rock sockets ? Answer Rock anchors are used first and foremost for resisting uplift forc
Explain brief about the term - Anchorage A device used to anchor tendons at the end of a concrete member is called as an anchorage in the case of post-tensioned concrete. In th
Q. Describe Principles of river protection works? Determination of design discharge for a bridge is sometimes required to be based on flood marks left during unprecedented abno
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