In testing of Cement the formula for water requirement for setting time is as below- Water required for setting time = NC x 0.85 The question is that what is the logic of 0.85 in this formula??

0 Answers   Grasim,

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During Soundness testing of Cement by Lechatelier method the Cement mould expands about 20 mm when merged in curing water for 24 hours after mould preparation.In that Cement MgO content is about 3.0%,SO3 is about 2.6% & Blaine is about 360 M2/Kg.Guess the reason & suggest solution.

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what are the advantage and disadvantages of evaporation?

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I want to ask the inventions of the maxwell boltzmann theory of gases?

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If the H were a classic particle what would be the tunneling probability?

1 Answers  

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why silica absorb in mix bed resins in D M plant.

8 Answers   NTPC,

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what kind of question can be asked in interview for polarimeter related ?

0 Answers   Ami Organics,

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What is emf and how is it used to arrange Metals in Reactivity Series?

3 Answers  

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WHAT IS THE SYLLABUS OO GROUP -I?

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The rate constant for the second order reaction is 0.54/M.s at 300oC. How long (in sec) would it take for the concentration of NO2 to decrease from 0.62M to 0.28 M? 2NO2(g) 2 NO(g) + O2(g)

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Normally entropy is expressed as q/T. But, work and heat have same unit. Why can't it be replaced by work?

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At a constant temp. volume is inversly proportional to pressure. This is Boyle's law. But, when u give pressure to a football, how the volume also increases?

1 Answers  

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