Enhancement on mechanical and durability performances of binary cementitious systems by optimizing particle size distribution of fly ash
Yükleniyor...
Tarih
2020
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
SPRINGERNATURE
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Fly ash is a well-known supplementary cementitious material that is the by-product of coal-fired thermal power plants. The contribution of fly ash to the enhancement of the mechanical and durability properties of cementitious materials has been documented in concrete technology for many years. In this study, to allow superior mechanical and durability properties, fly ash-based mixtures have been produced after optimization of particle size distribution (PSD) of Class F and Class C fly ash according to the formula of Fuller-Thompson. Different distribution modulus values ranging from 0.3 to 0.6 were used to achieve ideal PSD in accordance with the Fuller-Thompson equation. 30% of F- and C-class fly ash by weight of cement were used to replace with cement in cementitious composites by optimizing PSD with help of air jet sieve. The recommended optimization technique improved the 7-, 28- and 90-day compressive and flexural strength results of mortars. Compressive and flexural strength tests and rapid chloride permeability test of cement-based systems incorporating fly ash up to 15% replacement ratio with optimized PSD at 90-days exhibited better results than those of plain samples owing to the filler effect.
Açıklama
Sevim, Ozer/0000-0001-8535-2344
Anahtar Kelimeler
Particle size distribution (PSD), Class F fly ash, Class C fly ash, Compressive and flexural strength, Maximum particle packing, Rapid chloride permeability test (RCPT)
Kaynak
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
20
Sayı
2
Künye
Bu makale açık erişimli değildir.
