The approximate value of shrinkage strain for design of post-tensioning member is
Where ‘t’ = age of concrete at transfer in days1
\(\frac{{0.0001}}{{{{\log }_{10}}\left( {t + 2} \right)}}\)
2
0.0003
3
\(\frac{{0.0002}}{{{{\log }_{10}}\left( {t + 2} \right)}}\)
4
\(\frac{{0.0003}}{{{{\log }_{10}}\left( {t + 2} \right)}}\)
5
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