ASTM Standard Setting time for Cement | How setting time of cement is affected?

Saturday, November 27, 2010 22:41
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How Setting Time of Cement is Affected:

Cement paste setting time is affected by a number of items including: cement fineness, water-cement ratio, chemical content (especially gypsum content) and admixtures.

Setting tests are used to characterize how a particular cement paste sets.  For construction purposes, the initial set must not be too soon and the final set must not be too late.

Additionally, setting times can give some indication of whether or not cement is undergoing normal hydration (PCA, 1988).  Normally, two setting times are defined:

Initial set. Occurs when the paste begins to stiffen considerably.

Final set. Occurs when the cement has hardened to the point at which it can sustain some load.

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3 Responses to “ASTM Standard Setting time for Cement | How setting time of cement is affected?”

  1. Syamsunderk says:

    January 7th, 2011 at 1:19 am

    I got a cement test result showing
    Initital setting time = 190 mins and
    final setting time as 270 mins Is it ok?

  2. mohsin says:

    January 7th, 2011 at 6:31 am

    Which Procedure you used ? i.e Vicat apparatus or any other …
    Your initial setting time is more than enough but final setting time seems good.

  3. Tanver_IUT_CEE says:

    January 15th, 2012 at 8:12 pm

    its nice………..

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