Properties of lightweight fiber-reinforced alkali-activated concrete

M. Mastali; K. Malovrh Rebec; Zahra Abdollahnejad; A. Alzaza; P. Kinnunen; Marjaana Karhu; V. Ducman; M. Illikainen

doi:10.1016/B978-0-323-85469-6.00014-3

Properties of lightweight fiber-reinforced alkali-activated concrete

M. Mastali
, K. Malovrh Rebec
, Zahra Abdollahnejad
, A. Alzaza
, P. Kinnunen
, Marjaana Karhu
, V. Ducman
, M. Illikainen

University of Nebraska-Lincoln
Slovenian National Building and Civil Engineering Institute (ZAG)
University of Connecticut
University of Oulu

Research output: Chapter in Book/Report/Conference proceeding › Chapter or book article › Scientific › peer-review

Abstract

This chapter presents the experimental results regarding the efficiency of using acoustic panels made with fiber reinforced alkali-activated slag foam concrete containing lightweight recycled aggregates produced using an industrial side stream, Petrit-T. The process was developed in a laboratory setting, and its scalability was assessed by an industrial pilot. Hardened state properties were investigated in terms of the mechanical strength (compressive and flexural), drying shrinkage, and sound absorption coefficient. Life cycle assessment (LCA) was also conducted on the produced acoustic panels and the environmental properties of the acoustic panels were compared with the commercial acoustic panels.

The experimental results showed that the panels exhibited good acoustic properties to absorb the sound so that the maximum acoustic absorption coefficients for the panels could be varied in the range of 0.5–0.6 in the high frequency regions (4000–5000 Hz). The rate of the drying shrinkage was limited to 25% µɛ after 1100 h and no localized crack was detected on the surface panels. Moreover, LCA revealed that substitution of sodium silicate with other materials considering similar physical and chemical mechanisms and lower negative environmental impacts significantly enhances the sustainability of the acoustic panels.

Original language	English
Title of host publication	Handbook of Advances in Alkali-Activated Concrete
Publisher	Elsevier
Chapter	13
Pages	321-344
Number of pages	24
ISBN (Electronic)	978-0-323-85470-2
ISBN (Print)	978-0-323-85469-6
DOIs	https://doi.org/10.1016/B978-0-323-85469-6.00014-3
Publication status	Published - 2022
MoE publication type	A3 Part of a book or another research book

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy
SDG 9 Industry, Innovation, and Infrastructure
SDG 12 Responsible Consumption and Production

Keywords

Acoustic panels
Alkali-activated foam concretes
Drying shrinkage
Life cycle assessment
The sound absorption

Access to Document

10.1016/B978-0-323-85469-6.00014-3

https://linkinghub.elsevier.com/retrieve/pii/B9780323854696000143

Cite this

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title = "Properties of lightweight fiber-reinforced alkali-activated concrete",

abstract = "This chapter presents the experimental results regarding the efficiency of using acoustic panels made with fiber reinforced alkali-activated slag foam concrete containing lightweight recycled aggregates produced using an industrial side stream, Petrit-T. The process was developed in a laboratory setting, and its scalability was assessed by an industrial pilot. Hardened state properties were investigated in terms of the mechanical strength (compressive and flexural), drying shrinkage, and sound absorption coefficient. Life cycle assessment (LCA) was also conducted on the produced acoustic panels and the environmental properties of the acoustic panels were compared with the commercial acoustic panels. The experimental results showed that the panels exhibited good acoustic properties to absorb the sound so that the maximum acoustic absorption coefficients for the panels could be varied in the range of 0.5{\textendash}0.6 in the high frequency regions (4000{\textendash}5000 Hz). The rate of the drying shrinkage was limited to 25\% µɛ after 1100 h and no localized crack was detected on the surface panels. Moreover, LCA revealed that substitution of sodium silicate with other materials considering similar physical and chemical mechanisms and lower negative environmental impacts significantly enhances the sustainability of the acoustic panels.",

keywords = "Acoustic panels, Alkali-activated foam concretes, Drying shrinkage, Life cycle assessment, The sound absorption",

author = "M. Mastali and \{Malovrh Rebec\}, K. and Zahra Abdollahnejad and A. Alzaza and P. Kinnunen and Marjaana Karhu and V. Ducman and M. Illikainen",

year = "2022",

doi = "10.1016/B978-0-323-85469-6.00014-3",

language = "English",

isbn = "978-0-323-85469-6",

pages = "321--344",

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TY - CHAP

T1 - Properties of lightweight fiber-reinforced alkali-activated concrete

AU - Mastali, M.

AU - Malovrh Rebec, K.

AU - Abdollahnejad, Zahra

AU - Alzaza, A.

AU - Kinnunen, P.

AU - Karhu, Marjaana

AU - Ducman, V.

AU - Illikainen, M.

PY - 2022

Y1 - 2022

N2 - This chapter presents the experimental results regarding the efficiency of using acoustic panels made with fiber reinforced alkali-activated slag foam concrete containing lightweight recycled aggregates produced using an industrial side stream, Petrit-T. The process was developed in a laboratory setting, and its scalability was assessed by an industrial pilot. Hardened state properties were investigated in terms of the mechanical strength (compressive and flexural), drying shrinkage, and sound absorption coefficient. Life cycle assessment (LCA) was also conducted on the produced acoustic panels and the environmental properties of the acoustic panels were compared with the commercial acoustic panels. The experimental results showed that the panels exhibited good acoustic properties to absorb the sound so that the maximum acoustic absorption coefficients for the panels could be varied in the range of 0.5–0.6 in the high frequency regions (4000–5000 Hz). The rate of the drying shrinkage was limited to 25% µɛ after 1100 h and no localized crack was detected on the surface panels. Moreover, LCA revealed that substitution of sodium silicate with other materials considering similar physical and chemical mechanisms and lower negative environmental impacts significantly enhances the sustainability of the acoustic panels.

AB - This chapter presents the experimental results regarding the efficiency of using acoustic panels made with fiber reinforced alkali-activated slag foam concrete containing lightweight recycled aggregates produced using an industrial side stream, Petrit-T. The process was developed in a laboratory setting, and its scalability was assessed by an industrial pilot. Hardened state properties were investigated in terms of the mechanical strength (compressive and flexural), drying shrinkage, and sound absorption coefficient. Life cycle assessment (LCA) was also conducted on the produced acoustic panels and the environmental properties of the acoustic panels were compared with the commercial acoustic panels. The experimental results showed that the panels exhibited good acoustic properties to absorb the sound so that the maximum acoustic absorption coefficients for the panels could be varied in the range of 0.5–0.6 in the high frequency regions (4000–5000 Hz). The rate of the drying shrinkage was limited to 25% µɛ after 1100 h and no localized crack was detected on the surface panels. Moreover, LCA revealed that substitution of sodium silicate with other materials considering similar physical and chemical mechanisms and lower negative environmental impacts significantly enhances the sustainability of the acoustic panels.

KW - Acoustic panels

KW - Alkali-activated foam concretes

KW - Drying shrinkage

KW - Life cycle assessment

KW - The sound absorption

UR - https://www.scopus.com/pages/publications/85129664115

U2 - 10.1016/B978-0-323-85469-6.00014-3

DO - 10.1016/B978-0-323-85469-6.00014-3

M3 - Chapter or book article

SN - 978-0-323-85469-6

SP - 321

EP - 344

BT - Handbook of Advances in Alkali-Activated Concrete

PB - Elsevier

ER -

Properties of lightweight fiber-reinforced alkali-activated concrete

Abstract

UN SDGs

Keywords

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