Comparison of the Influence of Silica-rich Supplementary Cementitious Materials on Cement Mortar Composites: Mechanical and Microstructural Assessment
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Tarih
2021
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The silica-rich supplementary cementitious materials (SCMs) are the key components of mechanical and microstructural properties. The use of SCMs results in improving the mechanical and microstructural properties and decreasing the environmental burden caused by cement production. In this regard, this paper reports a study to compare the influence of silica-rich supplementary cementitious materials (slag, fly ash, and bottom ash) having similar Blaine fineness on cement mortar composites in terms of mechanical and microstructural properties. The Blaine fineness of supplementary cementitious materials was chosen at cement Blaine fineness by using short grinding time due to minimize energy consumption and cost. Supplementary cementitious materials (slag, fly ash, and bottom ash) were ground at similar cement Blaine fineness (similar to 3300 cm(2)/g) and then by replacing 5 % and 20 % with cement, the 7-, 28-, 90-day mechanical and microstructural properties of cement mortar composites incorporating SCMs were examined. As a result, it was observed that the compressive strength properties of cement mortar composites incorporating 20 % slag gave similar strength of control samples (without SCM) according to samples with fly ash and bottom ash having similar fineness and this will decrease the required amount of cement and grinding time for the target strength properties, thus the number of CO2 emitted to nature will also decrease and less energy consumption, and the cost-effectiveness will be ensured by shorter grinding time for target strength.
Açıklama
Anahtar Kelimeler
Cement mortar composites; Supplementary cementitious materials (SCMs); Microstructure; Blast furnace slag; Fly ash; Bottom ash; Blaine fineness; Compressive strength
Kaynak
Silicon
WoS Q Değeri
Q3
Scopus Q Değeri
Cilt
13
Sayı
5
