Bs En 12390-2:2019 〈Full EDITION〉

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

Once demolded, specimens must be cured until the time of testing. Standard methods include: bs en 12390-2:2019

Specimens must be cast in molds that comply with . Molds should be: Non-reactive: Materials must not affect the concrete. Providing a reliable framework for Quality Control (QC)

Using a vibrating table or internal "poker" vibrator. Hand Compaction: Using a standard tamping rod or bar. Standard methods include: Specimens must be cast in

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

To prevent loss of cement paste or water during casting.

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