The process begins with obtaining a representative sample of fresh concrete according to EN 12309-1. Once the sample is ready, the molds are prepared by applying a thin film of non-reactive release agent to the internal surfaces.
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In the construction industry, ensuring the strength and durability of concrete is paramount. is the British and European Standard that specifies the essential methods for making and curing test specimens to determine compressive and tensile splitting strength.
For remixing the concrete sample before casting. bs en 12390-2:2019
By standardising these environmental and physical variables, this document eliminates testing disparities. It ensures that when a cube, cylinder, or prism is crushed, the data reflects the true potential of the concrete mix rather than errors introduced by poor laboratory techniques. 1. Scope, Significance, and Equipment Requirements
If compacting manually, use the specified rod and apply a predetermined number of strokes per layer (typically a minimum of 25 strokes for a
BS EN 12390-2:2019 permits two primary permanent curing methods: Method A: Water Curing (Preferred) Submerge the specimens entirely in a water tank. The water temperature must be strictly maintained at The process begins with obtaining a representative sample
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)
Surfaces should be wiped clean of excess water, but the specimen should remain in a saturated condition. 5. Benefits of Adhering to the Standard Utilizing BS EN 12390-2:2019 provides significant benefits:
Once removed from the molds, specimens must undergo continuous moist curing until the moment of testing (typically 7 or 28 days). In the construction industry, ensuring the strength and
Place specimens in a room with a relative humidity of ≥ 95% and an air temperature strictly maintained at 20°C ± 2°C .
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)
Specific guidance on the compaction of high-density or low-workability mixes. 4. Importance of Compliance
If "solid paper" refers to a specific academic paper or technical document investigating this standard, several studies use it as a reference for their methodology, such as those exploring bauxite tailing admixtures pozzolanic performance in structural concrete Quick questions if you have time: Was this "solid paper" a product? Need help finding the standard? BS EN 12390-2:2019 - TC | 31 Jul 2019 | BSI Knowledge 31 July 2019 —
: Guidelines for safely moving specimens from the site to the laboratory without causing internal damage. Why It’s Important