一种沥青路面用融雪抗凝冰材料的制备

Preparation of Snow Melting Anti-Condensation Material for Asphalt Pavement

以Al_2O_3为载体,醋酸盐为抗凝冰活性物质,制备一种道路沥青路面用融雪抗凝冰材料。考察了醋酸钙和醋酸镁的物质的量比对制备材料冰点的影响、三种载体的吸附效果和疏水剂加入量对醋酸盐析出量的影响,同时对抗凝冰融雪效果进行考察。利用红外光谱和热重分析对制备材料的结构及稳定性进行表征。结果表明,融雪抗凝冰材料中醋酸钙和醋酸镁的物质的量比为1∶2,选用自制Al_2O_3载体,有机硅疏水剂的质量分数为9%时,融雪抗凝冰材料高温稳定性较好,具有较好的抑冰融雪效果。

A snow melting anti-condensation ice material for road asphalt pavement is prepared by using aluminum oxide as the carrier and acetate as the anti-condensation active material. The effects of the mass ratio of calcium acetate and magnesium acetate on the freezing point of the prepared materials,the adsorption effect of the three carriers and the amount of hydrophobic agent added on the precipitation of acetate were investigated,and the effect of anti-freezing and snow melting was investigated. The structure and stability of the prepared materials were characterized by infrared spectroscopy and thermogravimetric analysis. The results show that the mass ratio of medium calcium acetate and magnesium acetate in the anti-condensation ice material is 1∶2,the self-made Al 2O 3 carrier is used. When the mass fraction of silicone hydrophobic agent is 9%,the high temperature stability of the snow melting anti-condensation ice material is better. It has a good effect of suppressing ice and snow.