This article combined AnXin highway rebuilding project in Henan province SMA - 13 construction on the above layer.According to the geographical features of Henan province, based on the principle of efficiency, we use limestone instead of the traditional basalt in construction.Because of the nature of the limestone and aggregate characteristics comparing with the basalt is poor, we use the previous construction experience is difficult to meet the construction requirements.Paving test road, through the malaxation, transportation, paving, rolling and joint etc of the mixture in pavement construction process, we put forward a set of applicable to the construction process of limestone.Applied to the engineering entity paving, we were successful.