沥青玛蹄脂碎石混合料(SMA)具有良好的抗车辙性能和抗滑性能,正逐步得到推广应用,但由于混合料的成本增加及拌和站的生产能力受到一定的限制。要保证SMA的施工质量,必须注重原材料的选择,文章结合河南省高速公路工程实践介绍了SMA混合料施工配合比设计,可供同类工程借鉴参考。 Asphalt Mastic Crushed Stone (SMA) has good anti-rutting performance and anti-skid performance, and is being popularized and applied gradually. However, due to the increase of the cost of the mixture and the production capacity of the mixing station, the SMA is limited. To ensure the construction quality of SMA, we must pay attention to the choice of raw materials. The paper introduces the mix design of SMA mixture with the engineering practice of Henan Expressway, which can be used for reference for similar projects.