Construction Materials -II- Practical Work Manual

Abstract

The practical work presented in this document is part of the course Construction Materials 2, taught to students in civil engineering or building technology. Its aim is to reinforce the theoretical knowledge acquired in lectures through the practical application of analysis and material characterization techniques, with a particular focus on concrete, a fundamental material in the field of construction. This manual emphasizes tests applied to both fresh and hardened concrete, allowing for the evaluation of its performance, quality, and compliance with current standards. It covers the following aspects: * The preparation method of concrete, which is essential to ensure the homogeneity of the mix and the reproducibility of results. * The compaction and curing methods, crucial parameters to ensure proper hardening of the concrete, especially under standardized conditions. * The slump test, a fundamental indicator of the workability of fresh concrete. * The flow table test and viscosity, used to assess the concrete’s ability to flow without segregation. *The density of concrete, a property that directly affects its mechanical strength and durability. * The compressive strength of concrete, a key parameter in the structural design process. * Finally, non-destructive measuring methods using a sclerometer and ultrasound. Each lab session has been designed to familiarize students with **testing standards (such as the European EN standards, the Algerian NA standards, and the American ASTM standards), the measuring instruments, the procedures to follow, and the criteria for interpreting the results. Beyond the technical aspect, these practical sessions aim to develop in students a critical mindset,methodological rigor, and a structured experimental approach skills that are essential in any quality control or materials evaluation process, whether on-site or in the laboratory. We hope this document will serve as an effective and motivating educational tool, and that it will contribute to training competent professionals who are fully aware of the importance of material quality in the construction sector.