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发明公开
CN106221248A 一种沥青路面缝隙封填材料及其制备方法 无效 - 驳回

一种沥青路面缝隙封填材料及其制备方法
摘要：
本发明提供一种沥青路面缝隙封填材料及其制备方法，属于公路建筑材料技术领域。其质量百分比组分为SBS改性沥青70～90%、复合改性硅藻土10～30%；SBS改性沥青中SBS共聚物掺量3～5%，稳定剂掺量0.1～0.3%；由硅藻土、岩沥青、橡胶、聚乙烯按重量份比例配成复合改性硅藻土。按比例称取硅藻土、岩沥青、橡胶粉加热混合，再加入聚乙烯磨成粉混均得复合硅藻土；将基质沥青加热后加入SBS共聚物，再升温至170～180℃，搅拌后剪切处理，加入稳定剂，发育1～2h，再加入复合硅藻土，搅拌得到封填材料。具有抗冲击能力强、粘结强度高、耐候性好、工艺简单等优点，可广泛用于沥青路面裂缝处治。
摘要（英）：

The invention provides an asphalt pavement gap sealing and filling material and a preparation method thereof, and belongs to the technical field of road building materials. The asphalt pavement gap sealing and filling material comprises the components in percentage by weight: 70 to 90 percent of SBS (styrene-butadiene-styrene) modified asphalt and 10 to 30 percent of composite modified diatomite, wherein in the SBS modified asphalt, the SBS copolymer mixing amount is 3 to 5 percent and the stabilizer mixing amount is 0.1 to 0.3 percent; the composite modified diatomite is prepared from diatomite, rock asphalt, rubber and polyethylene according to parts by weight. The preparation method comprises the steps of weighing, heating and mixing the diatomite, the rock asphalt and the rubber powder according to a ratio, adding the polyethylene and grinding the polyethylene into powder, and mixing uniformly to obtain the composite diatomite; heating the base material asphalt, adding the SBS copolymer, heating to 170 to 180 DEG C, shearing after stirring, adding the stabilizer, developing for 1 to 2 hours, adding the composite diatomite and stirring to obtain the sealing and filling material. The asphalt pavement gap sealing and filling material and the preparation method thereof have the advantages of high impact resistance, high adhesive strength, high weather resistance, simple process and the like, and can be widely applied to asphalt pavement crack treatment.

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