The Effect of Hydrated Lime Mixing Forms and Ratios on Performance in Asphalt Pavements

Authors : Celaleddin Ensar ŞENGÜL, Dündar AYYILDIZ, Erol İSKENDER, Atakan AKSOY

Pages : 12243-12263

Doi:10.18400/tekderg.902668

View : 10 | Download : 4

Publication Date : 2022-07-01

Article Type : Research Paper

Abstract :In this study; the water damage problem and indirect tensile strengths insert ignore into journalissuearticles values(ITS); were investigated for different hydrated lime insert ignore into journalissuearticles values(HL); additive ratios and adding methods. In this regard, identical briquettes modified with hydrated lime have been produced. HL was used both in the bituminous binder insert ignore into journalissuearticles values(wet method); and as part of the filler aggregate. The hydrated lime was added in two different ways to form the defined equivalent ratios. By producing nine identical briquettes in each option, the values of water damage and ITS in both unconditioned and modified mixtures were compared, and the level of significance differences between the identical briquettes and mixtures was questioned. Increasing the HL content increases the standard deviation between identical samples in terms of ITS. The workability of the mixture is adversely affected by the increase in the hydrated lime ratio. When HL is mixed into the asphalt cement insert ignore into journalissuearticles values(AC);, the standard deviations of ITS values among identical samples remain lower due to the increase in mixing rates. Increasing the ratio of adding HL to the asphalt cement reduces the ITS ratios compared to the option of adding filler to aggregate. If HL is added to the mixture in low HL content, the water damage ratios show, on average, higher water damage resistance insert ignore into journalissuearticles values(15% higher); than the HL being added to the AC. However, if the HL content is increased to medium and high levels, mixing HL to AC creates higher water damage resistance than adding it as filler.
Keywords : Asphalt pavements, hydrated lime, HL mixing forms, mechanical tests