Thermal and chemically modified plant fibres as reinforcement in cementitious matrices

Emeka Ezugwu; Carlos Fioroni; Juliana Calabria-Holley; Kevin Paine; Holmer Savastano Jr

Thermal and chemically modified plant fibres as reinforcement in cementitious matrices

Emeka Ezugwu, Carlos Fioroni, Juliana Calabria-Holley, Kevin Paine, Holmer Savastano Jr

University of São Paulo

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

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Abstract

The effect of hornification and hydrophobic silica (Si) coatings on the performances of plant fibre cement composites were assessed. Three macro fibres and a micro fibre, all from plant sources were used as reinforcement. Flexural results indicated that Si coated fibres increased the modulus of rupture (MOR), limit of proportionality (LOP) and modulus of elasticity (MOE) of cement composites but reduced specific energy (SE) while hornification decreased the above properties. Likewise, decreased water absorption, increased bulk density, pore volume and diameter were observed in Si coated fibre composites. Overall Si coatings on control and hornified fibres showed better pre peak behaviour in composites compared to purely hornified fibres which had a slightly better post peak performance

Original language	English
Title of host publication	41st Cement & Concrete Science Conference
Publisher	University of Leeds
Publication status	Published - Sept 2022
Event	41st Cement & Concrete Science Conference, 12–13 September 2022, University of Leeds - Duration: 12 Sept 2022 → 13 Sept 2022

Conference

Conference	41st Cement & Concrete Science Conference, 12–13 September 2022, University of Leeds
Period	12/09/22 → 13/09/22

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Thermal and Chemically Modified Cellulose Fibres as Reinforcement In Cementitious MatricesFinal published version, 258 KB

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@inproceedings{e1e08ab3300a4e34ad922bc64d4696ad,

title = "Thermal and chemically modified plant fibres as reinforcement in cementitious matrices",

abstract = "The effect of hornification and hydrophobic silica (Si) coatings on the performances of plant fibre cement composites were assessed. Three macro fibres and a micro fibre, all from plant sources were used as reinforcement. Flexural results indicated that Si coated fibres increased the modulus of rupture (MOR), limit of proportionality (LOP) and modulus of elasticity (MOE) of cement composites but reduced specific energy (SE) while hornification decreased the above properties. Likewise, decreased water absorption, increased bulk density, pore volume and diameter were observed in Si coated fibre composites. Overall Si coatings on control and hornified fibres showed better pre peak behaviour in composites compared to purely hornified fibres which had a slightly better post peak performance",

author = "Emeka Ezugwu and Carlos Fioroni and Juliana Calabria-Holley and Kevin Paine and {Savastano Jr}, Holmer",

year = "2022",

month = sep,

language = "English",

booktitle = "41st Cement & Concrete Science Conference",

publisher = "University of Leeds",

address = "UK United Kingdom",

note = "41st Cement & Concrete Science Conference, 12–13 September 2022, University of Leeds ; Conference date: 12-09-2022 Through 13-09-2022",

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TY - GEN

T1 - Thermal and chemically modified plant fibres as reinforcement in cementitious matrices

AU - Ezugwu, Emeka

AU - Fioroni, Carlos

AU - Calabria-Holley, Juliana

AU - Paine, Kevin

AU - Savastano Jr, Holmer

PY - 2022/9

Y1 - 2022/9

N2 - The effect of hornification and hydrophobic silica (Si) coatings on the performances of plant fibre cement composites were assessed. Three macro fibres and a micro fibre, all from plant sources were used as reinforcement. Flexural results indicated that Si coated fibres increased the modulus of rupture (MOR), limit of proportionality (LOP) and modulus of elasticity (MOE) of cement composites but reduced specific energy (SE) while hornification decreased the above properties. Likewise, decreased water absorption, increased bulk density, pore volume and diameter were observed in Si coated fibre composites. Overall Si coatings on control and hornified fibres showed better pre peak behaviour in composites compared to purely hornified fibres which had a slightly better post peak performance

AB - The effect of hornification and hydrophobic silica (Si) coatings on the performances of plant fibre cement composites were assessed. Three macro fibres and a micro fibre, all from plant sources were used as reinforcement. Flexural results indicated that Si coated fibres increased the modulus of rupture (MOR), limit of proportionality (LOP) and modulus of elasticity (MOE) of cement composites but reduced specific energy (SE) while hornification decreased the above properties. Likewise, decreased water absorption, increased bulk density, pore volume and diameter were observed in Si coated fibre composites. Overall Si coatings on control and hornified fibres showed better pre peak behaviour in composites compared to purely hornified fibres which had a slightly better post peak performance

M3 - Chapter in a published conference proceeding

BT - 41st Cement & Concrete Science Conference

PB - University of Leeds

T2 - 41st Cement & Concrete Science Conference, 12–13 September 2022, University of Leeds

Y2 - 12 September 2022 through 13 September 2022

ER -

Thermal and chemically modified plant fibres as reinforcement in cementitious matrices

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