Bs En 12390-2:2019

: Procedures for finishing the top surface and clearly identifying each specimen for tracking.

Fully submerged in water (lime-saturated water is often used to prevent leaching of calcium hydroxide from the test specimens). Duration: Until testing, commonly 7 or 28 days. 2.3 Site Curing (Field Method)

When a laboratory strictly adheres to BS EN 12390-2:2019, asset owners, structural engineers, and contractors gain absolute confidence in their material data, protecting both the financial bottom line and public safety.

The standard outlines specific requirements for curing specimens, including: bs en 12390-2:2019

is more than a procedural document – it is the legal and technical foundation for trust in concrete testing. Whether you are a technician, engineer, laboratory manager, or quality auditor, strict adherence to this standard eliminates variables that could otherwise obscure the true quality of the concrete.

A key update in the 2019 version is the removal of the disclaimer clause that existed in the 2009 edition. Testing houses can no longer claim that non-standard curing was used; the standard now mandates strict adherence to its curing requirements. This shift has driven many laboratories to update their equipment to guarantee consistent temperature control.

| | Minimum Tamps per Layer | |----------------|------------------------------| | 100 mm cube | 25 tamps | | 150 mm cube | 35 tamps | : Procedures for finishing the top surface and

: Once demolded, specimens are typically cured in a water tank at

Moulds must be made of a non-absorbent, rigid material that does not react with cement paste (typically cast iron, steel, or heavy-duty plastics). Standard sizes are 100 mm or 150 mm.

| | Title | Application | |----------|-----------|-----------------| | Part 1 | Shape, dimensions and other requirements of specimens and moulds | Defines the dimensional tolerances and specifications for test specimens and the moulds used to cast them | | Part 2 | Making and curing specimens for strength tests | This document – covers specimen preparation and curing procedures | | Part 3 | Compressive strength of test specimens | Determines the compressive strength of test specimens | | Part 4 | Compressive strength – Specification for testing machines | Specifies requirements for the equipment used in compressive strength testing | | Part 5 | Flexural strength of test specimens | Establishes procedures for evaluating the flexural (bending) strength of concrete | | Part 6 | Tensile splitting strength of test specimens | Covers the method for determining the splitting tensile strength of cylindrical specimens | | Part 7 | Density of hardened concrete | Specifies procedures for determining the density of test specimens | | Part 8 | Depth of penetration of water under pressure | Establishes a method for assessing the water permeability of hardened concrete | | Part 9 | Freeze-thaw resistance | Covers the assessment of concrete's durability under freeze-thaw cycling | | Part 10 | Determination of the carbonation resistance of concrete | Establishes methods for assessing the carbonation depth and resistance of hardened concrete | | Part 11 | Determination of the chloride resistance of concrete | Specifies procedures for assessing the resistance of hardened concrete to chloride ingress | | Part 12 | Determination of the carbonation resistance of concrete at atmospheric CO₂ levels | Establishes a method for assessing the carbonation resistance of concrete under natural atmospheric conditions | A key update in the 2019 version is

: It ensures that a 28-day strength test in one lab is directly comparable to a test in another.

for hardened concrete testing. Its implementation is vital for: Quality Control