How long before I can walk on C25 concrete? C25 is generally walkable within 24–48 hours; full strength is achieved around 28 days. 2026-03-26T16:44:31+00:00Categories: C25 Concrete| Share this Information: FacebookXBlueskyRedditLinkedInMastodonWhatsAppTelegramThreadsTumblrPinterestVkXingEmailCopy Link