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Review

Recent Advances in Geopolymer Technology. A Potential Eco-Friendly Solution in the Construction Materials Industry: A Review

1
Department of Chemical and Material Engineering, Sapienza University of Rome, 00184 Rome, Italy
2
INSTM Reference Laboratory for Engineering of Surface Treatments, Department of Chemical and Material Engineering, Sapienza University of Rome, 00184 Rome, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Farshid Pahlevani
J. Compos. Sci. 2021, 5(4), 109; https://doi.org/10.3390/jcs5040109
Received: 31 March 2021 / Revised: 14 April 2021 / Accepted: 15 April 2021 / Published: 17 April 2021
(This article belongs to the Special Issue From Waste to Advance Composite Materials)
In the last ten years, the Portland cement industry has received wide criticism due to its related high embodied energy and carbon dioxide footprint. Recently, numerous “clean” strategies and solutions were developed. Among these, geopolymer technology is gaining growing interest as a functional way to design more eco-friendly construction materials and for waste management issues suffered by various industries. Previous research has highlighted the attractive engineering properties of geopolymeric materials, especially in terms of mechanical properties and durability, resulting in even higher performance than ordinary concrete. This review provides a comprehensive analysis of current state-of-the-art and implementations on geopolymer concrete materials, investigating how the key process factors (such as raw materials, synthesis regime, alkali concentration, water dosage, and reinforcement fillers) affect the rheological, microstructural, durability, and mechanical properties. Finally, the paper elucidates some noteworthy aspects for future research development: innovative geopolymer-based formulations (including alkali-activated blends for additive manufacturing and thermo-acoustic insulating cellular compounds), concrete applications successfully scaled in the civil-architectural fields, and the perspective directions of geopolymer technology in terms of commercialization and large-scale diffusion. View Full-Text
Keywords: geopolymer technology; carbon dioxide emission; alumino-silicate sources; rheology; mechanical properties; durability; microstructure; thermo-acoustic properties; additive manufacturing; civil applications geopolymer technology; carbon dioxide emission; alumino-silicate sources; rheology; mechanical properties; durability; microstructure; thermo-acoustic properties; additive manufacturing; civil applications
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MDPI and ACS Style

Sambucci, M.; Sibai, A.; Valente, M. Recent Advances in Geopolymer Technology. A Potential Eco-Friendly Solution in the Construction Materials Industry: A Review. J. Compos. Sci. 2021, 5, 109. https://doi.org/10.3390/jcs5040109

AMA Style

Sambucci M, Sibai A, Valente M. Recent Advances in Geopolymer Technology. A Potential Eco-Friendly Solution in the Construction Materials Industry: A Review. Journal of Composites Science. 2021; 5(4):109. https://doi.org/10.3390/jcs5040109

Chicago/Turabian Style

Sambucci, Matteo, Abbas Sibai, and Marco Valente. 2021. "Recent Advances in Geopolymer Technology. A Potential Eco-Friendly Solution in the Construction Materials Industry: A Review" Journal of Composites Science 5, no. 4: 109. https://doi.org/10.3390/jcs5040109

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