Details
Title | Mechanical behavior and eco-efficiency of sisal fiber reinforced cement composites containing husk rice ash // Magazine of Civil Engineering. – 2024. – Т. 17, № 3. — С. 12702 |
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Creators | Calazans K. G.; Lima P. R. L.; Toledo Filho R. D. |
Imprint | 2024 |
Collection | Общая коллекция |
Subjects | Строительство; Строительные конструкции; cement composites; environmental efficiency; sisal fiber reinforcement; rice husk; rice husk ash; mechanical properties; цементные композиты; экологическая эффективность; армирование сизалевым волокном; рисовая шелуха; зола рисовой шелухи; механические свойства |
UDC | 624.01 |
LBC | 38.5 |
Document type | Article, report |
File type | |
Language | English |
DOI | 10.34910/MCE.127.2 |
Rights | Свободный доступ из сети Интернет (чтение, печать, копирование) |
Additionally | New arrival |
Record key | RU\SPSTU\edoc\73958 |
Record create date | 9/19/2024 |
The use of cementitious composites reinforced with plant fibers in construction elements has emerged as a promising alternative to mitigate the environmental impact of the construction industry. The challenge of chemical incompatibility between plant fibers and the matrix has been addressed through the incorporation of mineral additives, with metakaolin being the most commonly used despite its high energy consumption during production and CO[2] generation. An alternative to this industrial additive is rice husk ash (RHA), a pozzolanic material derived from agricultural waste. The research aims to evaluate the influence of a high RHA content replacing cement on the mechanical properties and sustainability indicators of composites reinforced with 4 % and 6 %, by mass, of sisal fibers. Composites incorporating 50 % RHA exhibited higher compressive strength, multiple cracks, and increased toughness under flexion compared to composites with metakaolinite, fly ash, and silica of fume. Sustainability assessments indicated that replacing metakaolin with RHA resulted in reduced CO[2] emissions and embodied energy, contributing to the enhanced eco-efficiency of the composites. This improvement was particularly notable in terms of increased compressive strength and toughness.
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