Bs En 12390-2:2019 [best] May 2026

) and protected from moisture loss by covering them with plastic or wet burlap.

Defining exactly how to fill and compact molds.

Specimens must be cast in molds that comply with . Molds should be: Non-reactive: Materials must not affect the concrete. bs en 12390-2:2019

Careful removal is required to avoid edge damage, which can weaken the specimen during a compression test. 4. Final Curing Conditions

Treated with a non-reactive release agent for easy demolding. 2. Filling and Compaction ) and protected from moisture loss by covering

Once demolded, specimens must be cured until the time of testing. Standard methods include:

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 Molds should be: Non-reactive: Materials must not affect

Providing a reliable framework for Quality Control (QC) and compliance with structural designs. 🛠️ Key Procedures and Requirements 1. Apparatus and Molds

The concrete must be filled in layers to ensure full density without segregation. Acceptable compaction methods include: