Özet:

In this study, the effects on the thickness and cost of the road superstructure of a curved road base ground improved with F-class flying ashes (UK) were studied. For this purpose, mixed samples were prepared with a weight of 5%, 10%, 15% and 20% of the UK. The prepared samples have been mixed homogenously and the UK’s highest resistance ratio has been determined by holding them under compression, free pressure and California Shipping Rate tests. Based on this ratio, the American Association of State Highway and Transportation Officials (AASHTO 1986) method used in the design of highway superstations, the flexibility module (MR) and the bed ratio (k) parameters, layer thickness and cost calculations for both superstations, accordingly, were studied in the UK-contributed lining floor flexibility and riding coating. Experimental studies have found that with the contribution of flying ashes the free pressure resistance of the steel ground has improved and the maximum resistance has been achieved at 10% UK. The study found that if the road base ground was improved by 10% in the UK, the ground MR value increased by 367.47% and the k value increased by 140.68%. As a result, on a 1 km long road to be built on a 10 % UK-refined steep floor compared to the pure steep floor, the cost of flexible and steep surfaces has been found to decline significantly by 37.45 % and 28.92 % respectively.

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