Građevinar, Vol. 75 No. 01., 2023.
Preliminary communication
https://doi.org/10.14256/JCE.3570.2022
Benefit–cost relationship of using concrete with blast furnace slag as road pavement
Tacettin Geçkil
Mehmet Mahmut Tanyıldızı
Ceren Beyza İnce
Abstract
In this study, the usability of concrete containing blast furnace slag (BFS; 15, 20, 25, 30 wt.%) as road pavement on soils with weak bearing strength and the corresponding benefit–cost relationship were investigated. The prepared concrete specimens were subjected to physical and mechanical tests following different curing times, and it was determined that the mechanical strength of the BFS-added specimens increased and peaked at the BFS content of 20 %. In addition, according to the AASHTO 1993 design method, it was determined that the thickness of the BFS-added concrete pavement decreased by 1.58 % to 3.38 % and the cost was reduced by 5.59 % to 10.30 %.
Keywords
road pavement; blast furnace slag; very weak bearing strength soil; concrete slab; AASHTO method
Hrčak ID:
294600
URI
Publication date:
1.3.2023.
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