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What is initial & final setting time?

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تم إضافة السؤال من قبل Mahmoud Abdulkader Darwish , Consultant Bridge Engineer , Brench IDS consulting company
تاريخ النشر: 2014/02/16
مستخدم محذوف‎
من قبل مستخدم محذوف‎

The final and primary the settig time :

the primary

Is the time from the moment you add water to the dry cement and even enter in the cement paste Vicat needle for a distance of less than5 mm from the bottom of the template

the final  

Is the time from the moment you add water to the dry cement until the moment you leave the needle fabkat cement paste by the impact while none effect to section installed on the needle

 

Elrayah Abdalla Mahmoud   Amin
من قبل Elrayah Abdalla Mahmoud Amin , Construction Manager , Arkad Engineering & Construction compan

 The initial setting time is the interval between the mixing of the cement with water and the time when the mix has lost plasticity.

The final setting time is the point at which the set cement has acquired a sufficient firmness to resist a certain defined pressure.

 

Ahmed Montasser Hasan Ibraheem Farag
من قبل Ahmed Montasser Hasan Ibraheem Farag , Project Manager , Rawafed Tech

I do not know, because I am system analyst

hatem labib
من قبل hatem labib , Quality control manager , MISER consultant

the initial setting  is time when chemical reaction between cement and water is start and it should be not less than45 minuts without additive.

final setting is the time when the chemical reaction between cement and water is finished and it should be not more10 hours according egyptian specification.

Mohammad Tohamy Hussein Hussein
من قبل Mohammad Tohamy Hussein Hussein , Chief Executive Officer & ERP Architect , Egyptian Software Group

Thank you for the invitation but the question is not within my expertise.

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