Strength Properties of Coffee Waste with Recycled Glass Geopolymers
Küçük Resim Yok
Tarih
2023
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer Science and Business Media Deutschland GmbH
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A sizable amount of coffee waste is dumped in the landfills every year. This study aims to investigate the possible use of coffee waste with recycled glass (CWRG) geopolymers as a green construction material for landfills. Coffee is an organic and a biodegradable material. Recycling glass reduces the landfill space that would be covered by many glass objects. Recycled glass is used in the construction industry and it has a property of replacing granular soils in construction works. In order to use coffee waste with recycled glass as a construction material, the strength development of CWRG geopolymers was observed. Fly ash was preferred as a precursor. Alkaline activators formed of sodium silicate and sodium hydroxide (Na2SiO3:NaOH) were used to trigger the geopolymerization process. Three variables were tested, i.e. the ratio of Na2SiO3:NaOH in alkali activators; curing temperature and curing time on the strength development of CWRG geopolymers. By adding 30% of fly ash into CWRG with 90%Na2SiO3:10%NaOH provided the highest unconfined compressive strengths. The ratio of recycled glass in the geopolymer and the curing temperature were major factors that were found to considerably affect the performance of the geopolymers. This paper indicates that the geopolymerization products based on CWRG have the ability to transform the coffee waste into a non-degradable material, making geopolymers an alternative stabilization agent even for highly organic soils. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd 2023.
Açıklama
Proceedings of the 3rd International Conference on Environmental Geotechnology, Recycled Waste Materials and Sustainable Engineering (EGRWSE -- 15 September 2022 through 17 September 2022 2022) -- 298959
Anahtar Kelimeler
Coffee waste, Geopolymer, Recycled glass, Unconfined compression test, Compressive strength, Construction industry, Curing, Fly ash, Glass, Glass industry, Inorganic polymers, Recycling, Silicates, Silicon, Sodium hydroxide, Stabilization, Coffee waste, Curing temperature, Geopolymer, Geopolymerization, Green constructions, Organics, Recycled glass, Strength development, Strength property, Unconfined compression tests, Geopolymers
Kaynak
Lecture Notes in Civil Engineering
WoS Q Değeri
Scopus Q Değeri
Q4
Cilt
370 LNCE
