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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.
3142As 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 4350In 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??
2488if two miscible liquids are each found to boil at the same temperature, could you safely conclude that they are identical?
2 16205
Is benzene aromatic?
how to prepare for the exam of ongc please give some idea
what is the difference between elctrefining and electrolysis?
why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space
Explain why do some medications contain hcl?
What are the challenges and opportunities associated with handling and storing Protactinium due to its radioactivity and scarcity?
Consider the polymerization of 1,2-dichloroethylene, h(cl)c=c(cl)h. What structural variations are possible in poly(1,2-dichloroethylene)? : Polymer Chemistry
is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth
can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?
what is the origin to prepare standard operating procedure
is it nessesary to do solution stability for 7 days?
Discuss the role of Actinium in neutron sources and its contribution to scientific research and advancements.
What is the composition of Barford Reagent?
Actinium is often considered a rare and scarce element. How does its rarity impact its industrial uses and research purposes?
What is equivalent conductivity?
