Bs En 12390-2:2019 Link

The standard distinguishes between two curing phases:

A. Initial Curing (In Molds)

B. Subsequent Curing (After Demolding)

BS EN 12390-2:2019 specifies methods for making and curing concrete specimens for strength tests. It applies to concrete sampled in the field or produced in a laboratory. bs en 12390-2:2019

The primary objective is to create a standardized environment. By controlling temperature, humidity, and handling, the standard ensures that the strength measured in the lab provides a reliable basis for the acceptance of the concrete batch.

The method depends on the consistency (slump) of the concrete:

Critical requirement: Do not over-vibrate. Over-vibration causes aggregate settlement to the bottom and a weak laitance layer on top. Do not under-vibrate—this leaves voids. The standard distinguishes between two curing phases: A

Title: Understanding BS EN 12390-2:2019: The Standard for Concrete Specimen Curing

Introduction

In the construction industry, the compressive strength of concrete is the primary metric for structural quality. However, the accuracy of this metric relies heavily on consistency. How a concrete sample is treated between the time it is cast and the time it is tested can drastically alter the results. Critical requirement: Do not over-vibrate

BS EN 12390-2:2019 (Testing hardened concrete – Part 2: Making and curing specimens for strength tests) is the European standard that governs this critical preparatory phase. It ensures that when concrete is tested in a laboratory, the results reflect the material's true potential, free from variables caused by poor handling.

This article provides an informative overview of the standard, its scope, and the key technical requirements for industry professionals.