Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pozzolanic Reactivity of Recycled Powders from Waste Wind Turbine Blades
https://orcid.org/0000-0001-8258-3227
https://orcid.org/0000-0002-1003-5317
https://orcid.org/0000-0003-2736-4050
Wind turbine blades are primarily composed of fiberglass composite, posing a significant recycling challenge for the wind energy industry. This paper introduces a novel recycling approach by comprehensively analyzing the pozzolanic reactivity of recycled powder as a new supplementary cementitious material (SCM). A systematic characterization using laboratory techniques is first described, establishing both the chemical and morphological properties of the powder and suggesting that the material was likely to be capable of acting as a pozzolan. The effects of thermal and mechanical processing on the reactivity characteristics of the material were elucidated using a suite of analytical and standardized characterization approaches. It was found that through heat treatment to remove impinging resin and subsequent mechanical processing to synthesize a fine powder, the reactivity of the material could be improved to an extent at which the performance characteristics of a conventional class F fly ash were closely matched. For instance, mortar containing 10% of thermally-mechanically processed powder achieves 95% of the 28-day strength of cement mortar. This paper opens the door for both the use of these materials to bolster dwindling supplies of supplementary cementitious materials, and to provide a much-needed reprocessing route for waste fiberglass which are otherwise highly challenging to dispose of cost-effectively.
Pozzolanic Reactivity of Recycled Powders from Waste Wind Turbine Blades
https://orcid.org/0000-0001-8258-3227
https://orcid.org/0000-0002-1003-5317
https://orcid.org/0000-0003-2736-4050
Wind turbine blades are primarily composed of fiberglass composite, posing a significant recycling challenge for the wind energy industry. This paper introduces a novel recycling approach by comprehensively analyzing the pozzolanic reactivity of recycled powder as a new supplementary cementitious material (SCM). A systematic characterization using laboratory techniques is first described, establishing both the chemical and morphological properties of the powder and suggesting that the material was likely to be capable of acting as a pozzolan. The effects of thermal and mechanical processing on the reactivity characteristics of the material were elucidated using a suite of analytical and standardized characterization approaches. It was found that through heat treatment to remove impinging resin and subsequent mechanical processing to synthesize a fine powder, the reactivity of the material could be improved to an extent at which the performance characteristics of a conventional class F fly ash were closely matched. For instance, mortar containing 10% of thermally-mechanically processed powder achieves 95% of the 28-day strength of cement mortar. This paper opens the door for both the use of these materials to bolster dwindling supplies of supplementary cementitious materials, and to provide a much-needed reprocessing route for waste fiberglass which are otherwise highly challenging to dispose of cost-effectively.
Pozzolanic Reactivity of Recycled Powders from Waste Wind Turbine Blades
https://orcid.org/0000-0001-8258-3227
https://orcid.org/0000-0002-1003-5317
https://orcid.org/0000-0003-2736-4050
Wind turbine blades are primarily composed of fiberglass composite, posing a significant recycling challenge for the wind energy industry. This paper introduces a novel recycling approach by comprehensively analyzing the pozzolanic reactivity of recycled powder as a new supplementary cementitious material (SCM). A systematic characterization using laboratory techniques is first described, establishing both the chemical and morphological properties of the powder and suggesting that the material was likely to be capable of acting as a pozzolan. The effects of thermal and mechanical processing on the reactivity characteristics of the material were elucidated using a suite of analytical and standardized characterization approaches. It was found that through heat treatment to remove impinging resin and subsequent mechanical processing to synthesize a fine powder, the reactivity of the material could be improved to an extent at which the performance characteristics of a conventional class F fly ash were closely matched. For instance, mortar containing 10% of thermally-mechanically processed powder achieves 95% of the 28-day strength of cement mortar. This paper opens the door for both the use of these materials to bolster dwindling supplies of supplementary cementitious materials, and to provide a much-needed reprocessing route for waste fiberglass which are otherwise highly challenging to dispose of cost-effectively.
Pozzolanic Reactivity of Recycled Powders from Waste Wind Turbine Blades
J. Mater. Civ. Eng.
Wu, Chao (Autor:in) / Zhuang, Xiaoning (Autor:in) / Vigor, James E. (Autor:in) / Yio, Marcus H. N. (Autor:in) / Cheeseman, Chris (Autor:in) / Wong, Hong (Autor:in)
01.09.2024
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Characteristics and pozzolanic reactivity of glass powders
| Elsevier | 2004
Characteristics and pozzolanic reactivity of glass powders
| Online Contents | 2005
Characteristics and pozzolanic reactivity of glass powders
| Tema Archiv | 2005
Characteristics and pozzolanic reactivity of glass powders
| British Library Online Contents | 2005