standard is not just a regulatory requirement but a fundamental practice for building durable and safe infrastructure. comparative breakdown of the specific changes between the 2009 and 2019 versions?
After the final layer is compacted, the top surface is carefully finished with a trowel or straightedge to be level with the top of the mould.
To fully appreciate BS EN 12390-2:2019, it is essential to understand its position within the broader family of concrete testing standards. EN 12390, Testing hardened concrete , consists of several complementary parts that collectively provide a comprehensive framework for evaluating the properties of hardened concrete:
Once removed from the moulds, the specimens must be immediately transferred to their permanent curing environment. BS EN 12390-2:2019 allows two primary methods:
By standardizing these variables, the industry ensures that a concrete cube tested in London behaves exactly like a cube tested in Paris or Frankfurt, removing human error and environmental bias from the strength verification process. Required Equipment and Lab Setup bs en 12390-2:2019
I can provide specific checklists or tailored advice based on your testing environment. Share public link
Before casting, ensure the moulds are thoroughly clean and free of hardened concrete residue. Tighten all assembly bolts to prevent grout leakage. Apply a thin, even coat of release agent to the internal surfaces. Step 2: Sampling and Remixing
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
Immediately cover the filled molds with a plastic sheet, damp burlap, or a tight-fitting plate. This prevents early moisture evaporation due to wind or dry air. standard is not just a regulatory requirement but
Curing is arguably the most critical phase of the process. Cement hydration requires constant moisture and controlled temperatures. Deviating from standard curing conditions can lead to artificial strength drops of 10% to 30%. BS EN 12390-2:2019 divides curing into two distinct phases: Phase 1: Initial Curing (In the Mould)
BS EN 12390-2:2019 is a part of the multi-series standard dedicated to testing hardened concrete. This specific part specifies the methods for making and curing test specimens (cubes, cylinders, and prisms) from fresh concrete mixes. Why It Matters
Understanding BS EN 12390-2:2019: The Standard for Making and Curing Concrete Test Specimens
: Once demolded, specimens are typically cured in a water tank at To fully appreciate BS EN 12390-2:2019, it is
As soon as the concrete blocks are carefully stripped from their molds, mark them with a permanent, waterproof identifier (e.g., sample ID and date). They must then immediately be placed into their final curing environment until the exact moment of testing (usually at 7 or 28 days).
Leave the specimens in the molds for at least 16 hours, but no longer than 3 days. The typical practice is 24 hours.
Eliminating extreme temperature fluctuations that cause micro-cracking.
between cube and cylinder curing methods.
: Standardizing the laboratory and site conditions for specimen preparation to minimize variability in test results. Relationship to Other Standards : It is often used in conjunction with BS EN 12350-1 (sampling fresh concrete) and BS EN 12390-3 (compressive strength testing). 2. Key Procedures for Making Specimens