Performance evaluation of geopolymer mortars containing waste ferrochrome slag and fly ash for sustainable green building

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Tarih

2024

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Nature Research

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

The aim of the present study, an attempt to shed light on the use of industrial-based wastes as alkali-activated binder (AAB) material is mainly. The present novel research work, the characterization of waste ferrochrome slag (FCS) and the performance of alkali-activated mortar consisting of fly ash (FA) were investigated. The characterization of used materials were carried out using advanced microstructural analysis techniques (XRF, XRD and SEM). A total of thirty two mortars are prepared using FCS (90–60%) and FA (10–40%) with 5 M, 10 M sodium hydroxide (NaOH), Na2SiO3/NaOH (SS/SH = 1 and 2) solution. All specimens were cured in an oven at 70 °C and 100 °C for 24 h. After oven curing, the geopolymer mortars were kept in the laboratory for 28 days and thermal and mechanical tests were applied to them. The A5 mixture (SS/SH = 1 with 10%FA, 90%FCS and 5 M NaOH) was found to be optimum in terms of thermal insulation properties, making it suitable for use in sustainable construction in terms of low energy cost through exterior insulation. The C8 mixture (SS/SH = 1 with 40%FA, 60% FCS and 10 M NaOH) was found to be optimum in terms of strength and durability, making it suitable for use in sustainable construction. As a result, in this study, an optimum mixture of waste FCS and FA was obtained and geopolymer building materials that provide thermal insulation and structural performance and are resistant to external influences were produced.

Açıklama

Anahtar Kelimeler

Alkaline activators, Compressive strength, Geopolymer mortar, Green building design, Waste recycling, Water absorption

Kaynak

Scientific Reports

WoS Q Değeri

Q1

Scopus Q Değeri

Q1

Cilt

14

Sayı

1

Künye

Koçyiğit, Ş. (2024). Performance evaluation of geopolymer mortars containing waste ferrochrome slag and fly ash for sustainable green building. Scientific Reports, 14(1), 1-22.