Please use this identifier to cite or link to this item: https://dspace.ctu.edu.vn/jspui/handle/123456789/39294
Title: Engineering properties of practical alkali-activated material with slag and low calcium fly ash blending
Authors: Nguyễn, Tiến Mộng
Nguyễn, Hoàng Anh
Vũ, Thị Như Ý
Trần, Văn Tỷ
Lâm, Thanh Quang Khải
Nguyễn, Văn Xuân
Nguyễn, Ngọc Long Giang
Keywords: Sodium hydroxide
Slag
Alkali activated material
Engineering properties
Issue Date: 2020
Series/Report no.: Tạp chí Xây dựng Việt Nam;No. 628 .- P.157-160
Abstract: The current study proposes fabricating the practical alkali-activated material (AAM) by adjusting the sodium hydroxide characteristics and dosage of low calcium Class F fly ash as slag substitution. The effects of Na₂O with three concentration of 3, 4, and 6 mass.% of total solid traction and slag replacement with Class F fly ash at three various percentages of 10, 30, and 50 mass.% on the engineering properties in terms of slump flow, setting times, and compressive strength of the AAM pastes have been explored. Experimental results showed that effect of the Na₂O concentration was opposite to that of the Class F fly ash increment on the properties of the AAM pastes. The increased concentration of Na₂O induced the resultant AAM pastes with lower flowability, shorter setting times, and higher compressive strengths at all ages of curing. The dosages of Na₂O concentration and slag replacement with low calcium Class F fly ash should be respectively limited at lower than 6 mass.% and 10 mass.% for fabricating the AAMs with desired engineering properties.
URI: https://dspace.ctu.edu.vn/jspui/handle/123456789/39294
ISSN: 0866-8762
Appears in Collections:Xây dựng Việt Nam

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