Maturity method applied to concrete: monitoring, techniques et perspectives

Accurate monitoring of concrete temperature is crucial in building and civil engineering works, as temperature is a key parameter in ensuring the strength and durability of structures.

In particular, temperature monitoring can optimize formwork removal times, i.e., the moment when the formwork is removed, by ensuring that the concrete has sufficient strength. Finally, it plays a crucial role in the overall durability of structures by identifying adverse environmental conditions that could compromise their integrity.

This article introduces various methods for monitoring concrete temperature, each with distinct advantages. Wired sensors, such as thermocouples, provide accurate and reliable measurements. In contrast, wireless sensors offer greater flexibility and easier installation. Automated measurement systems allow data to be collected and analyzed in real time, ensuring continuous monitoring of the concrete curing process.

In addition, monitoring concrete temperature is closely linked to determining its early strength. Specific standards and measurement methods have been established to assess the strength of concrete when it is still relatively young. Accurate temperature monitoring offers considerable advantages in this context, providing reliable data for assessing the potential strength of concrete at an early stage. This article takes an in-depth look at the use of these systems for measuring the strength of young concrete and their application in all types of structures, particularly in response to the advent of low-carbon concrete.

To illustrate the application of the concepts discussed, a case study will be presented. It will highlight the monitoring of concrete temperature in the construction of a specific civil engineering structure. We will describe the project, its specific constraints, and the temperature monitoring methodology implemented. Finally, we will analyze the results obtained and draw conclusions about the effectiveness of temperature monitoring in this specific context.

This article discusses concrete temperature monitoring as a key parameter for ensuring the strength and durability of building and civil engineering structures. By providing an in-depth understanding of temperature-related issues, available monitoring methods, and its link to determining early-age strength, this article aims to enrich knowledge in this crucial field. The results presented, perspectives, and recommendations will serve as a basis for future projects, while highlighting the current limitations of the study and opportunities for future research.