Research on Performance of Road Application of Converter Bituminous Steel-slag Mixture of Jigang Group co. ltd

摘要

To detect the chemical composition and physic-mechanical properties of converter steel slag of Jigang Group Co., Ltd and evaluate its feasibility as aggregate of the bituminous mixture. Prepare three kinds of AC20 bituminous mixtures by all using the steel slag as aggregate, by partially using the steel slag as aggregate and by all using macadam as aggregate respectively, and analyze the physic-mechanical properties of such three kinds of bituminous mixtures. The test analysis results prove that the high-temperature stability, low-temperature crack resistance and fatigue property of the bituminous mixture with all steel slag as aggregate or partial steel slag as aggregate are superior to those of macadam mixture. Although its water stability is a little bad, it still can meet the specification requirements, and it is suggested to be used widely in the middle and lower surface layers of pavement structure layer.