The effects of synthetic wollastonite microfibers on PVA fiber-reinforced engineered geopolymer composites
Küçük Resim Yok
Tarih
2024
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Consejo Superior Investigaciones Cientificas-Csic
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this study, first, synthetic wollastonite microfiber (SWM) with a high aspect ratio (44:1) was produced with a special three-stage production method. Then, fly ash and ground granulated blast furnace slag-based engineered geopolymer composites (FA+GGBFS-based EGCs) were developed. SWM was used in different proportions instead of FA. The compressive strength of EGCs, changed in the range of 88.1-111.1 and 95.1-122.6 MPa at 7 and 28 days, respectively. Additionally, EGCs containing 6% SWM performed the best, considering both increasing deformation capacity and maintaining the bearing strength by fiber bridging after crack, since they acted like a fiber owing to the acicular particle structure of SWM. Moreover, it can be said that the presence of the SWM mineral in the pore system, ensured pore discontinuities in the matrix because of its acicular particle structure. Consequently, the mechanical, durability and dimensional stability properties of EGCs improved with SWM.
Açıklama
Anahtar Kelimeler
EGC, Synthetic wollastonite microfiber, Mechanical, durability and dimensional stability properties, Freeze-thaw resistance, TGA/DTA
Kaynak
Materiales De Construccion
WoS Q Değeri
N/A
Scopus Q Değeri
Q2
Cilt
74
Sayı
354
