Generally, concrete shrinks at a high rate during the initial period of hardening, but at later stages the rate diminishes gradually. 15% to 30% of the shrinkage value occurs in 2 weeks, 40% to 80% occurs in 1 month, and 70% to 85% occurs in 1 year.
Generally, concrete shrinks at a high rate during the initial period of hardening, but at later stages the rate diminishes gradually. 15% to 30% of the shrinkage value occurs in 2 weeks, 40% to 80% occurs in 1 month, and 70% to 85% occurs in 1 year.