Abstract
Fiber cement is widely used in the construction industry due to its satisfactory physical and mechanical properties. However, the need to enhance these characteristics has driven research focused on the development of new additives and the optimization of manufacturing processes. In this context, the present study aimed to develop and evaluate extruded fiber cement composites reinforced with Erythrina poeppigiana particles. The particles were mineralized with 9% aluminum sulfate [Al₂(SO₄)₃] and chemically characterized. The composites were produced using 66.7% Portland cement (CPV-ARI), 28.3% limestone, and 5% particles. After 72 h of curing, the specimens underwent accelerated carbonation for 24 h. Composite analyses were performed after 28 days of curing. The combination of aluminum sulfate treatment and carbonation (STMC) resulted in composites with improved performance, as evidenced by increased flexural strength (MOR), modulus of elasticity (MOE), and toughness, along with a significant reduction in porosity, water absorption, thermal conductivity, and air permeability. These results demonstrate the technical feasibility of the treated composites, indicating their potential for application in construction systems requiring high structural performance and durability.
| Original language | English |
|---|---|
| Pages (from-to) | 7967-7981 |
| Number of pages | 15 |
| Journal | Environmental Science and Pollution Research |
| Volume | 33 |
| Issue number | 16 |
| Early online date | 9 May 2026 |
| DOIs | |
| Publication status | Published - 9 May 2026 |
Data Availability Statement
The data supporting the findings of this study are available upon request to the corresponding author(s).Acknowledgements
The authors would like to thank the Postgraduate Program in Wood Science and Technology at the Federal University of Lavras (UFLA), the National Council for Scientific and Technological Development (CNPq; process 150494/2024-6), the Coordination for the Improvement of Higher Education Personnel (CAPES), and the Minas Gerais Research Support Foundation (FAPEMIG). We thank WRI Brasil and Instituto Arapyaú for funding, the management of resources for PCTSB – Parque Científico e Tecnológico do Sul da Bahia (Southern Bahia Science and Technology Park), and the partnership we had with the Central Laboratory of Forest Product Technologies of the Federal University of Southern Bahia (UFSB) – Center for Training in Agroforestry Sciences (CFCAf).Funding
The Article Processing Charge (APC) for the publication of this research was funded by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) (ROR identifier: 00x0ma614).
Keywords
- Accelerated carbonation
- Aluminum sulfate
- Calcium carbonate
- Durability
- Fiber cement composites
ASJC Scopus subject areas
- Environmental Chemistry
- Pollution
- Health, Toxicology and Mutagenesis
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