Bs En 12390-2:2019 May 2026
The top surface must be finished flat to ensure even loading during testing. 3. Initial Curing and Demolding Timeframe: Specimens typically remain in the mold for Environment: They must be kept at a temperature of 15∘C15 raised to the composed with power C 22∘C22 raised to the composed with power C 20∘C20 raised to the composed with power C
Once demolded, specimens must be cured until the time of testing. Standard methods include: bs en 12390-2:2019
Treated with a non-reactive release agent for easy demolding. 2. Filling and Compaction The top surface must be finished flat to
The concrete must be filled in layers to ensure full density without segregation. Acceptable compaction methods include: bs en 12390-2:2019
Defining exactly how to fill and compact molds.
Using a vibrating table or internal "poker" vibrator. Hand Compaction: Using a standard tamping rod or bar.
Careful removal is required to avoid edge damage, which can weaken the specimen during a compression test. 4. Final Curing Conditions
