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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.
A footing, 2 m square, is founded at a depth of 1.5 m in a sand deposit, for which the corrected value of N is 27. The water table is at a depth of 2 m from the surface. Verify the
Movement accommodation factor is normally specified by manufacturers of joint sealants for designers to design dimension of joints. It is stated as the total movement that a joint
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Measurement quantity of excavation, concrete, formwork as my assignment brief.
Question While designing mini-piles , should strength of grout be disused during estimation of loading carrying capacity? Answer While designing min-piles, there will
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plz tell me the ratio of sand,aggregate,and asphalt.pl tell me the mm of aggregate
The wet weight of a sample is missing in a Proctor test. The oven-dry weight of this sample is 189 N. The volume of the mould used is 1000 cm 3 . If the degree of saturation of
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describe setting out right angle at given point on a chain line and when the point lies outside the chain line
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