Laboratory study on the properties of concrete pavement containing blast furnace slag and Gilsonite.

Autor: Zahedipoor, M., Kordani, A. Abdi, Zarei, M.
Předmět:
Zdroj: Electronic Journal of Structural Engineering; 2023, Vol. 23 Issue 3, p37-43, 7p
Abstrakt: This study evaluated the mechanical properties and abrasion resistance of the concrete pavement when cement was replaced by the blast furnace slag (BFS) and Gilsonite at levels of 20%, 25%, and 30%, as well as 5%, 7%, and 9%, respectively. For this purpose, a total of ten mixing designs were made and cured for 28 days. The results showed that the compressive strength of mixtures containing two additives decreased. In contrast, the BFS20-G7 (i.e., sample containing 20% BFS and 7% Gilsonite) mixture satisfied the proposed minimum compressive strength. However, the flexural strength and tensile splitting of the BFS20-G7 containing 20% BFS and 7% Gilsonite increased by about 4 and 7 percent. The Wide Wheel Abrasion Test results showed that the mixture containing 20% BFS-7% Gilsonite increased the abrasion resistance by about 5% and 17% in 100 and 300 revolutions, respectively. Conclusively, using BFS20-G7 in low traffic areas such as park and driveway can be suggested. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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