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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As per X-ray Fluorescence theory, when material particle is irradiated with X-ray the electron of innermost orbital of that element atom is exited and emits outside of the atom as photoelecrons, living behind a hole in innermost orbital . This hole is filled by outer orbital electrons. The question is that finely what happens to that photo electon which is emitted outside of the atom?

1 Answers   Grasim,

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How do you measure order of reaction?

2 Answers  

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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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name any insolvent compound?

1 Answers  

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How the value of Absorbance and molar extinction coefficient are caluculated?

2 Answers   Panacea,

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how many types of stability in pharma or API industry ?

2 Answers   Unimarck Pharma,

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How much is the molar extinction coefficient of methylene blue at wavelenght 664 nm? Are molar extinction coefficient depend on concentration of solution?

3 Answers   Indfrag Limited,

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Write the each half cell reaction and also net cell reaction for a cell

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How to accelerate electron capture decay?

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What is the requirement to give RFlow when using RID detector?

0 Answers  

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Why water is not detected in GC & solvents are not detected in HPLC?

2 Answers   Alkem Labs,

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