๐How Many Days After Column Shuttering Can Be Removed According to ACI Code?
ACI 347.2R does not prescribe a fixed number of days for removing column formwork. Instead, it recommends removing formwork only after the concrete has gained enough strength to safely support its own weight and any applied loads.
The required time depends on several factors, including concrete mix design, cement type, curing conditions, ambient temperature, and member size.
As a general field practice, vertical formwork for columns can often be removed within 24โ48 hours if the concrete has achieved adequate strength and there is no risk of damage.
However, structural engineers should always verify concrete strength through project specifications or strength tests before stripping formwork.
Key Points:
ACI emphasizes strength-based, not time-based, formwork removal.
Maintain proper curing even after shuttering is removed.
Never remove bracing or props prematurely if they provide structural stability.
Follow project specifications and the engineer's instructions for safe stripping.
> Note: The temperature-based table shown in the image is not an official ACI 347.2R requirement.
ACI guidance is based on achieving sufficient concrete strength rather than fixed removal times.
๐ซตโแแฐแจแแช แจแฎแแตแตแซแญแฝแ แแญแ แแจแแแฝ แฅแ แแ แณแ แจแชแ แตแดแต แแแแฝ ๐
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ACI 347.2R does not prescribe a fixed number of days for removing column formwork. Instead, it recommends removing formwork only after the concrete has gained enough strength to safely support its own weight and any applied loads.
The required time depends on several factors, including concrete mix design, cement type, curing conditions, ambient temperature, and member size.
As a general field practice, vertical formwork for columns can often be removed within 24โ48 hours if the concrete has achieved adequate strength and there is no risk of damage.
However, structural engineers should always verify concrete strength through project specifications or strength tests before stripping formwork.
Key Points:
ACI emphasizes strength-based, not time-based, formwork removal.
Maintain proper curing even after shuttering is removed.
Never remove bracing or props prematurely if they provide structural stability.
Follow project specifications and the engineer's instructions for safe stripping.
> Note: The temperature-based table shown in the image is not an official ACI 347.2R requirement.
ACI guidance is based on achieving sufficient concrete strength rather than fixed removal times.
๐ซตโแแฐแจแแช แจแฎแแตแตแซแญแฝแ แแญแ แแจแแแฝ แฅแ แแ แณแ แจแชแ แตแดแต แแแแฝ ๐
โhttps://www.facebook.com/profile.php?id=61592085774934
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