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Table 5 Strain values in RCC and PSC beams at different age of concrete.

From: Growth of Time-Dependent Strain in Reinforced Cement Concrete and Pre-stressed Concrete Flexural Members

Sl. No Age of conc Strain growth test beam B2Fe2 Strain growth test beam PSBFe2
Above N.A (×E−4) Below N.A (×E−4) Difference in strain Above N.A (×E−4) Below N.A (×E−4) Difference in strain
1 100 2.61 1.81 0.80 4.89 5.43 0.54
2 150 2.89 2.07 0.82 4.10 4.50 0.40
3 300 4.64 3.27 0.87