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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.
DESIGN A LINEAR DC POWER SUPPLY WITH THE FOLLOWING SPECIFICATION,SHOW DETAILS STEPS AND CALCULATION...Vload :12v Iload :0.07A Vripple load(p-p) :0.01v TA :45 DEGREE CELCUS
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Tests on Bricks The following laboratory tests can be conducted on the bricks to find their suitability: 1. Crushing strength 2. Absorption 3. Shape and size
Q. Write short note on Open Foundation? Broadly the foundation are classified into open i.e. shallow & deep foundations open as stated are shallow foundation where the soil str
Tests on Bitumen: The following tests are conducted on bitumen to find its suitability as a road binder : (a) Penetration test (b) Softening Point test (c) Flash Poi
Cost-Volume-Profit and Break Even Analysis: Cost-volume-profit analysis helps us to learn the behaviour of cost and profit in response to varying level of business activity. I
A sand at a borrow pit is determined to have an in-situ dry unit weight of 18.4 kN/m 3 . Laboratory tests indicate the maximum and minimum unit weight values of 19.6 kN/m 3 and
What is the station at Point B? SOLUTION 3 Station at Point A = Sta 22+45 Station at Point B = (Sta 22+45) + 1028' = 2245'+1028' =3273' = Sta 32+73
Q. Afflux in rivers with non scourable bed? Afflux is defined as rise of flood level of the river upstream of a bridge as a result of the obstruction to natural flow caused by
Sir morng..i know about WCB AND RB.With diagram..pls help me sir
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