Bs En 12390-2:2019 -

Technical Report: BS EN 12390-2:2019

Hand Compaction:

Using a rod or bar, typically tamping at least 25 times uniformly per layer for a 100mm cube.

Legally, the standard is a normative reference in the European concrete standard (EN 206) and UK Building Regulations. If a failure investigation occurs, the first question asked is always: "Were the specimens made and cured to BS EN 12390-2:2019?" Failure to adhere can render test results void and lead to contractual disputes, project delays, or unnecessary demolition. bs en 12390-2:2019

B. Subsequent Curing (After Demolding)

: Specimens must remain in their molds for at least 16 hours but no more than three days at a temperature of Technical Report: BS EN 12390-2:2019 Hand Compaction: Using

• Title: BS EN 12390-2:2019 (identical to EN 12390-2:2019)
• Published: 2019 (approved by CEN 29 Apr 2019; UK national implementation July 2019)
• Supersedes: EN 12390-2:2009
• Pages: ~8–12 (published by BSI/CEN)
• ICS: 91.100.30 (Concrete and concrete products)

Scope and Purpose

Compacting Tools:

These can include internal (poker) vibrators, vibrating tables, or manual compacting rods/bars. Trowels/Floats: Used for mandatory surface leveling. 3. Procedural Methodology Specimen Preparation and Filling Title: BS EN 12390-2:2019 (identical to EN 12390-2:2019)

Critical requirement:

Do not over-vibrate. Over-vibration causes aggregate settlement to the bottom and a weak laitance layer on top. Do not under-vibrate—this leaves voids.