Dear all, i would like to know if the shrinkage bar test on mortar is done at room temparature, how it can be differnt as the concrete and mortar has to face the same the temparatures.
According to ASTM C 596, the drying shrinkage on mortar bars are done at room temperature. However, you can subject it to different temperature if you're looking at determine the effect of different environment conditions on shrinkage
Shrinkage test is affected by Relative humidity and temperature. Various codes therefore recommends conditions of testing and same may be used.
The room temperature is different seasonally and even daily (day and night), so it is better to be conducted at controlled humidity and temperature (as set up by national and international standards) so that it can be compared with the recommended standards.
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