Potassium-Based Geopolymer Composites Reinforced with Chopped Bamboo Fibers

Kaushik Sankar; Ruy A. Sá Ribeiro; Marilene G. Sá Ribeiro; Waltraud M. Kriven; P. Colombo

doi:10.1111/jace.14542

Potassium-Based Geopolymer Composites Reinforced with Chopped Bamboo Fibers

Kaushik Sankar, Ruy A. Sá Ribeiro, Marilene G. Sá Ribeiro, Waltraud M. Kriven, P. Colombo

Research output: Contribution to journal › Article › peer-review

Abstract

Bamboo is a fast-growing, readily available natural material with tensile specific strength equivalent to that of steel (250–625 MPa/g/cm³). In the pursuit of sustainable construction materials, a composite was made with potassium polysialate siloxo geopolymer as the matrix and randomly oriented chopped bamboo fibers (Guadua angustifolia) from the Amazon region as the reinforcement. Four-point flexural strength testing of the geopolymer composite reinforced with bamboo fibers was carried out according to ASTM standard C78/C78M-10^e1. Potassium-based metakaolin geopolymer reinforced with 5 wt% (8 vol%) untreated bamboo fibers yielded 7.5 MPa four-point flexural strength. Scanning electron microscopy and optical microscopy were used to investigate the microstructure. In addition, X-ray diffraction was used to confirm the formation of geopolymer.

Original language	English (US)
Pages (from-to)	49-55
Number of pages	7
Journal	Journal of the American Ceramic Society
Volume	100
Issue number	1
DOIs	https://doi.org/10.1111/jace.14542
State	Published - Jan 1 2017

Keywords

composites
fibers
geopolymers
kaolinite
potassium

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Online availability

10.1111/jace.14542

Library availability

Discover UIUC Full Text

Cite this

@article{9ca25524444f488ba5507f34a64e2996,

title = "Potassium-Based Geopolymer Composites Reinforced with Chopped Bamboo Fibers",

abstract = "Bamboo is a fast-growing, readily available natural material with tensile specific strength equivalent to that of steel (250–625 MPa/g/cm3). In the pursuit of sustainable construction materials, a composite was made with potassium polysialate siloxo geopolymer as the matrix and randomly oriented chopped bamboo fibers (Guadua angustifolia) from the Amazon region as the reinforcement. Four-point flexural strength testing of the geopolymer composite reinforced with bamboo fibers was carried out according to ASTM standard C78/C78M-10e1. Potassium-based metakaolin geopolymer reinforced with 5 wt% (8 vol%) untreated bamboo fibers yielded 7.5 MPa four-point flexural strength. Scanning electron microscopy and optical microscopy were used to investigate the microstructure. In addition, X-ray diffraction was used to confirm the formation of geopolymer.",

keywords = "composites, fibers, geopolymers, kaolinite, potassium",

author = "Kaushik Sankar and {S{\'a} Ribeiro}, {Ruy A.} and {S{\'a} Ribeiro}, {Marilene G.} and Kriven, {Waltraud M.} and P. Colombo",

note = "Funding Information: This work was partially supported by the U.S Air Force Office of Scientific Research (AFOSR), through the Tyndall Air Force Base, Florida, under grant no. FA 9550-06-1-0221. The work of Ruy A. S{\'a} Ribeiro was supported by CNPq – Conselho Nacional de Desenvolvimento Cient{\'i}fico e Tecnol{\'o}gico - Brazil. SEM and XRD were carried out at the Frederick Seitz Materials Research Laboratory Central Facilities (FS-MRL). Flexural strength tests were carried out at the Advanced Mechanical Testing and Evaluation Laboratory (AMTEL) of UIUC. Bamboo collection, fiber preparation, and conditioning were done at the Structural Engineering Laboratory (LTEE-INPA) and at the Particleboard Laboratory (LA-INPA). Publisher Copyright: {\textcopyright} 2016 The American Ceramic Society",

year = "2017",

month = jan,

day = "1",

doi = "10.1111/jace.14542",

language = "English (US)",

volume = "100",

pages = "49--55",

journal = "Journal of the American Chemical Society",

issn = "0002-7863",

publisher = "American Chemical Society",

number = "1",

}

TY - JOUR

T1 - Potassium-Based Geopolymer Composites Reinforced with Chopped Bamboo Fibers

AU - Sankar, Kaushik

AU - Sá Ribeiro, Ruy A.

AU - Sá Ribeiro, Marilene G.

AU - Kriven, Waltraud M.

AU - Colombo, P.

N1 - Funding Information: This work was partially supported by the U.S Air Force Office of Scientific Research (AFOSR), through the Tyndall Air Force Base, Florida, under grant no. FA 9550-06-1-0221. The work of Ruy A. Sá Ribeiro was supported by CNPq – Conselho Nacional de Desenvolvimento Científico e Tecnológico - Brazil. SEM and XRD were carried out at the Frederick Seitz Materials Research Laboratory Central Facilities (FS-MRL). Flexural strength tests were carried out at the Advanced Mechanical Testing and Evaluation Laboratory (AMTEL) of UIUC. Bamboo collection, fiber preparation, and conditioning were done at the Structural Engineering Laboratory (LTEE-INPA) and at the Particleboard Laboratory (LA-INPA). Publisher Copyright: © 2016 The American Ceramic Society

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Bamboo is a fast-growing, readily available natural material with tensile specific strength equivalent to that of steel (250–625 MPa/g/cm3). In the pursuit of sustainable construction materials, a composite was made with potassium polysialate siloxo geopolymer as the matrix and randomly oriented chopped bamboo fibers (Guadua angustifolia) from the Amazon region as the reinforcement. Four-point flexural strength testing of the geopolymer composite reinforced with bamboo fibers was carried out according to ASTM standard C78/C78M-10e1. Potassium-based metakaolin geopolymer reinforced with 5 wt% (8 vol%) untreated bamboo fibers yielded 7.5 MPa four-point flexural strength. Scanning electron microscopy and optical microscopy were used to investigate the microstructure. In addition, X-ray diffraction was used to confirm the formation of geopolymer.

AB - Bamboo is a fast-growing, readily available natural material with tensile specific strength equivalent to that of steel (250–625 MPa/g/cm3). In the pursuit of sustainable construction materials, a composite was made with potassium polysialate siloxo geopolymer as the matrix and randomly oriented chopped bamboo fibers (Guadua angustifolia) from the Amazon region as the reinforcement. Four-point flexural strength testing of the geopolymer composite reinforced with bamboo fibers was carried out according to ASTM standard C78/C78M-10e1. Potassium-based metakaolin geopolymer reinforced with 5 wt% (8 vol%) untreated bamboo fibers yielded 7.5 MPa four-point flexural strength. Scanning electron microscopy and optical microscopy were used to investigate the microstructure. In addition, X-ray diffraction was used to confirm the formation of geopolymer.

KW - composites

KW - fibers

KW - geopolymers

KW - kaolinite

KW - potassium

UR - http://www.scopus.com/inward/record.url?scp=84990831281&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84990831281&partnerID=8YFLogxK

U2 - 10.1111/jace.14542

DO - 10.1111/jace.14542

M3 - Article

AN - SCOPUS:84990831281

SN - 0002-7863

VL - 100

SP - 49

EP - 55

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 1

ER -

Potassium-Based Geopolymer Composites Reinforced with Chopped Bamboo Fibers

Abstract

Keywords

ASJC Scopus subject areas

Online availability

Library availability

Related links

Fingerprint

Cite this