BS EN 12390-2:2019 recognises the equivalence of different curing environments. Curing specimens in a closely regulated humidity chamber is considered equivalent to curing in water, provided the correct conditions are maintained.
Once removed from the moulds (demoulded), the specimens must be cured in a controlled environment to ensure maximum strength development.
Based on industry experience, several common errors arise when implementing BS EN 12390-2:2019:
Disclaimer: This article is for informational purposes and does not constitute legal or professional advice. Always refer to the full text of BS EN 12390-2:2019, available from BSI Group (British Standards Institution), for complete and legally binding requirements. bs en 12390-2:2019
For professionals like civil engineers and laboratory technicians, following the BS EN 12390-2:2019
Before placing any concrete, clean the molds thoroughly. Apply a thin, even coat of mold release agent to the inner surfaces. Ensure all bolts and clamps are tightened to prevent grout loss during compaction. 2. Sampling and Mixing
Specimens should be kept in their molds, protected from shock, vibration, and dehydration, for at least 16 hours but not more than 3 days. BS EN 12390-2:2019 recognises the equivalence of different
| | Temperature Range | Relative Humidity | Typical Application | |----------------------|----------------------|----------------------|--------------------------| | Reference curing room (optimal) | 20 ± 2°C | ≥ 90% | Standard specimen curing for strength testing | | Ambient storage (common application) | 20 ± 2°C | 60 ± 5% | Simulating field conditions for certain durability tests |
BS EN 12390-2:2019 is a document within the BS EN 12390 series, which covers the testing of hardened concrete. This specific part outlines the methods for making and curing test specimens (cubes, cylinders, and prisms) from fresh concrete mixes.
Can include mechanical vibrating tables, internal poker vibrators, or manual compacting rods/bars. Tools: Scoops, trowels, floaters, and a sampling tray. Based on industry experience, several common errors arise
user wants a long article about the standard "BS EN 12390-2:2019". This standard likely pertains to testing hardened concrete, specifically "Making and curing specimens for strength tests". I need to gather comprehensive information about this standard. I'll follow the search plan provided in the hints. search results provide a good amount of information. I have opened several pages to gather details. Now I need to synthesize this into a long article. I'll structure it with an introduction, key updates, technical requirements, comparison with previous standards, importance for quality control, and a conclusion. I'll cite the sources appropriately. reliability of concrete, the backbone of modern construction, is measured through compressive strength testing. The cornerstone of this process is , the British Standard that dictates exactly how to make and cure concrete test specimens. This standard, which is the UK's implementation of the European standard EN 12390-2:2019, ensures that results from strength tests are consistent and reliable, replacing the previous 2009 version.
The standard outlines specific requirements for curing specimens, including:
Elias didn't move until he checked his stopwatch. He knew the —if that concrete wasn't in the moulds soon, it was useless. He stepped into the light, carrying his steel moulds. These weren't just boxes; they were the "specimens" defined by the standard. Step 1: The Filling
BS EN 12390-2:2019 is a European Standard that outlines the procedures for making and curing specimens of hardened concrete. This standard is part of a series of standards for testing hardened concrete, and it provides guidelines for the preparation of concrete specimens for testing. This report provides an overview of the standard, its significance, and key aspects of making and curing specimens.