The 2019 version superseded the 2009 edition. Key updates included:
: Specimens stay in their molds for a minimum of 16 hours and a maximum of 3 days, protected from vibration and moisture loss, typically at a temperature between 15°C and 25°C. Curing Protocols
If you are looking to score high, make sure you are writing clear sentences, use formal vocabulary and organized paragraphs to express your ideas, make citations and finally proofread the final piece to exclude any possible typos. bs en 12390-2:2019
The standard is a definitive guideline for the Testing of Hardened Concrete , specifically focusing on the methods for making and curing specimens for strength tests. It is a critical component of quality control in construction, ensuring that concrete specimens (cubes, cylinders, and prisms) are prepared consistently to provide reliable data on structural integrity. Overview and Scope
: Even moving a concrete cube from the site to the lab is covered. If it gets jostled or dried out in the sun during the trip, the test results won't be accurate, potentially leading to a structural disaster. Why It Matters The 2019 version superseded the 2009 edition
: Specimens must be filled in layers. Compaction is achieved through mechanical vibration (using a vibrating table or internal "poker" vibrator) or manually using a compacting rod or bar. For manual compaction, each layer typically receives 25 strokes to remove entrapped air pockets.
What makes interesting text is that it reads like a rulebook for a game of millimeters and degrees. It tries to impose perfect mathematical order on a chaotic, lumpy, chemical process. It reminds us that concrete is a material that is born, not made —and the first 24 hours of its life determine whether it will hold up a skyscraper or crumble under a truck. The standard is a definitive guideline for the
The compressive strength of concrete is influenced by several factors, including:
: Alternatively, specimens can be stored in a mist room or cabinet with a relative humidity of ≥95% .