Bs En — 12390-2:2019

This involves curing the specimens alongside the actual structure (or under simulated site conditions) to estimate the in-situ strength of the concrete. This is often used for determining formwork removal times or post-tensioning schedules.

The standard BS EN 12390-2:2019 covers the procedures for making and curing specimens of hardened concrete for testing. The standard is applicable to concrete made with normal weight aggregates, lightweight aggregates, and heavyweight aggregates. The standard provides guidelines for: bs en 12390-2:2019

This is sometimes used for – initial slow heat development followed by standard curing. The standard allows this, but the precise regime must be agreed between the specifier and the tester. This involves curing the specimens alongside the actual

: Establishing precise temperature and moisture requirements. Key Technical Procedures The standard is applicable to concrete made with

The 2019 version introduced clarifications and updates from its predecessor (2009). Key technical requirements include:

The preparation process is strictly defined to ensure homogeneity and representativeness of the concrete mix. Mould Preparation

After the final layer is compacted, excess concrete is removed and the surface is leveled flush with the mold rim. Specimens must be clearly marked for traceability without damaging the fresh surface. 4. Curing and Storage Requirements