Laboratory Evaluation of the Effect of Steel Slag on Fatigue Performance of Hot Mix Asphalt Mixture

Document Type : Original Article

Authors

Department of Civil Engineering, Malard Branch, Islamic Azad University, Malard, Tehran, Iran.

Abstract

Fatigue cracking is one of the most common damages in asphalt pavements. Hence, fatigue performance of asphalt mixtures is one of the most important parameters of the mixing design and structural design of pavements which ignoring it, leads to the existence of crack, rutting, and failure of the asphalt procedure. in this study, fatigue shot test was carried out to predict the fatigue behavior of mixtures containing steel slag or fatigue beam test using four - point loading in the constant strain mode at two levels of strain 600 and 800 micro strain, with a sinusoidal wave and frequency of 10 Hz. in this project, the addition of coarse and fine aggregates of coarse aggregate, fine - grained and all of aggregates was observed in the comparison that steel slag mixtures generally have more fatigue life than the observed mixtures, and the mixture containing fine steel slag aggregates have the highest fatigue life.

Keywords

References

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