蔗渣纤维沥青混合料超薄路面层抗腐性能试验研究

Experimental study on corrosion-resistance of ultra-thin pavement of sugarcane fiber asphalt mixture

以路用蔗渣颗粒状木质纤维为纤维稳定剂,按油石比5.3%、5.6%、5.9%、6.2%、6.5%配制蔗渣纤维SMA-8沥青混合料作为超薄路面结构层材料。通过SMA-8沥青混合料试样浸水、冻融劈裂强度、不浸水的浸水车辙、浸水(或动水)的浸水车辙等抗腐性能试验研究,证实路用蔗渣颗粒状木质纤维可以作为SMA沥青混合料的纤维稳定剂,油石比为5.94%~6.04%制成的蔗渣纤维SMA-8沥青混合料超薄路面层抗腐性能最佳。

We used road construction bagasse granular cellulose fiber as stabilizer to prepare sugarcane fiber SMA-8 asphalt mixture according to asphalt-aggregate ratio of 5.3%,5.6%,5.9%,6.2%,6.5%. The prepared asphalt mixture was used as ultra-thin pavement structure materials. In the present paper corrosion-resistance experiment research on SMA-8 asphalt mixture sample soaking, freeze-thaw split tensile strength,non-soaking immersion rut, soaking（or flowing water） immersion rut etc. was carried out. The experimental study result confirmed road construction sugarcane bagasse granular cellulose fiber can be used as stabilizer of SMA-8 asphalt mixture. The best sugarcane fiber SMA-8 asphalt mixture ultra-thin pavement c0rrosion-resistance was presented when the asphalt-aggregate ratio is of 5.94%-6.04%.