High-performance desulfurization modified rubber asphalt pavement crack filling glue and preparation method thereof

Abstract

The application discloses a kind of high-performance desulfurization modified rubber asphalt pavement crack pouring glue and preparation method thereof, belong to the field of rubber asphalt and preparation technology.The modified asphalt pavement crack pouring glue includes base asphalt 60~65 parts, modified rubber powder 15~20 parts, SBS modifier 1~3 parts, tackifier 10~15 parts, compatible agent 2~5 parts, plasticizer 2~5 parts;The preparation method of the rubber powder is that the rubber powder is placed in sodium hydroxide solution, soaked for 2~12h, filtered, washed, dried, the dried rubber powder is heated to 170~220 DEG C, and kept for 3~4h to obtain desulfurization rubber powder;Desulfurization rubber powder and water are mixed to obtain rubber powder dispersion, then add the acidic aqueous solution of itaconic acid, react for 2~4h, filter the reaction solution, wash, dry to obtain modified rubber powder.The modified asphalt pavement crack pouring glue prepared by the application has excellent wide-temperature-range adaptability and low-temperature adhesion performance, solves the cracking problem of crack pouring glue at low temperature, and prolongs the service life of crack pouring glue.

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