Determination of need for water soaking period in measurement of concrete volume of permeable voids : final report.
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2016-10-01
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Edition:Final report
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Abstract:Water permeability of concrete is one of the key factors concerning many concrete deterioration
problems. It is often evaluated indirectly by measuring the volume of permeable voids through the KT-73
(2012) testing procedures. These procedures include a 48-hour water soaking period of the concrete samples.
It is desired to omit the step of water soaking in order to simplify the test and reduce the time required to
carry it out. In order to examine the significance of the water soaking step, 31 different concrete mixtures
were tested with and without the 48-hour water soaking period. A statistical F-test was performed on the
obtained data and it was concluded that the effect of the water soaking period on the measured volume of
permeable voids was statistically insignificant. Therefore, it is recommended to omit the water soaking step
from the KT-73 testing procedures.
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