Bs En 12390-2:2019 (PREMIUM)

BS EN 12390-2:2019: A Comprehensive Guide to Testing Hardened Concrete

A. Moulds and Compaction

• Mould Material: Moulds must be rigid, watertight, and non-absorbent. They are typically made of steel or cast iron, though plastic moulds are permitted if they meet specific rigidity requirements.
• Compaction: Specimens must be fully compacted. The standard permits two methods:
  • EN 12390-3 compressive strength test
  • EN 12350-1 sampling fresh concrete
  • EN 206 concrete specification

  Lubricated: Treated with a non-reactive release agent for easy demolding. 2. Filling and Compaction bs en 12390-2:2019

  1. Specimen Molds: The standard specifies the requirements for specimen molds, including their material, design, and dimensions.
  2. Concrete Mixing and Placement: The standard provides guidelines for mixing and placing concrete into specimen molds, including the use of vibrating tables and compaction methods.
  3. Curing Conditions: The standard specifies the curing conditions for specimens, including temperature, humidity, and curing duration.
  4. Storage and Handling: The standard provides guidelines for the storage and handling of specimens, including protection from damage and contamination.

  Practical implications for laboratories and contractors

  • Ensure laboratory procedures and paperwork capture mould preparation, compaction method, and exact curing regime.
  • Use caution with internal vibration on air‑entrained mixes; verify entrained air content if using internal vibrators.
  • Maintain calibrated curing facilities (water tanks or humidity chambers) and temperature control to meet stated tolerances.
  • Demoulding and handling procedures should minimize time variance and mechanical damage prior to testing.

  : Concrete is placed into moulds in layers and compacted using methods such as a vibrating table BS EN 12390-2:2019: A Comprehensive Guide to Testing