198 posts
Setting Time
What will be the possible reasons for higher initial setting time (435min) and slight difference in initial (435 min) and final setting time(485 min)?
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324 posts
Re: Setting Time
These are very long setting times. What are the normal setting times? Are you using the Vicat needle method? It is known for fluoride to lengthen setting time. Is it possible that the fluoride content of raw materials or fuel have risen?
198 posts
Re: Setting Time
Respected Sir,
Many thanks for your prompt response.The normal seeting time of the said cement is as given under:
IST = 130-180 minutes & FST = 175-235 minutes
I will search the fluoride content in the said cement and inform you in the forum.
With kind regards,
R.M.Sahu
44 posts