Alternative hydraulic binder development based on brick fines: Influence of particle size and substitution rate
| Autor: | Adèle Grellier, Zengfeng Zhao, Luc Courard, Mohamed Elkarim Bouarroudj, David Bulteel, Sébastien Remond |
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| Přispěvatelé: | Laboratoire de Génie Civil et Géo-Environnement (LGCgE) - ULR 4515 (LGCgE), Université d'Artois (UA)-Université de Lille-Ecole nationale supérieure Mines-Télécom Lille Douai (IMT Lille Douai), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-JUNIA (JUNIA), Ecole nationale supérieure Mines-Télécom Lille Douai (IMT Lille Douai), Institut Mines-Télécom [Paris] (IMT), Université catholique de Lille (UCL)-Université catholique de Lille (UCL) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Cement
Brick Materials science musculoskeletal neural and ocular physiology Metallurgy 0211 other engineering and technologies Blended cement 02 engineering and technology Building and Construction Clinker (cement) Microstructure musculoskeletal system Cement paste [SPI.GCIV]Engineering Sciences [physics]/Civil Engineering surgical procedures operative Mechanics of Materials 021105 building & construction Architecture 021108 energy Particle size Safety Risk Reliability and Quality Pozzolanic activity human activities Civil and Structural Engineering |
| Zdroj: | Journal of Building Engineering Journal of Building Engineering, 2021, 39, pp.102263. ⟨10.1016/j.jobe.2021.102263⟩ |
| ISSN: | 2352-7102 |
| Popis: | Brick waste is produced in large quantities by the civil engineering sector without any real valorization. One way of valorizing this material consists in incorporating brick fines in cement. The substitution of clinker with this material produces an alternative hydraulic binder. In addition to the reduction in cost and energy saving, blended cement based on brick fines would present the advantage to improve the environmental impact of cement production by reducing its CO 2 emission. Therefore, the aim of this paper is to study the use of bricks fines in cement, focusing more specifically on the impact of the size of their particles on fresh and hardened cement paste properties. Potential pozzolanic activity of the three brick fines was investigated as well as its influence on the microstructure and strength of cement paste samples. The results showed that it was possible to produce blended cement based on brick fines. Substitution rates up to 20% with brick fines whose dimensions are close to those of clinker gave good performances compared to the reference cement. The brick fines clearly impact the hydration process through nucleation action and pozzolanic activity. |
| Databáze: | OpenAIRE |
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