Bituminous pavement pit slot cold supplementing liquid based on unsaturated polyester resin and preparation method of bituminous pavement pit slot cold supplementing liquid

• Main Authors: ZHANG HONGLIANG, LIU TONG, WANG CHENRUI, SUN MENGQING, WANG JUNLI, WEI TONGJUN, YANG YUNJIE, LYU WENJIANG, ZHONG QIHAN
• Format: Patent
• Language: Chinese; English
• Published: 13.05.2022
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention provides an unsaturated polyester resin-based asphalt pavement pit slot cold repair liquid and a preparation method thereof, the raw materials comprise a component A and a component B, the mass ratio of the component A to the component B is 1: (5-10); wherein the component A comprises waterborne unsaturated polyester resin, an initiator and a polymerization inhibitor, and the polymerization inhibitor is tert-butylcatechol; the component B comprises emulsified asphalt and a compatilizer. And the addition of tert-butylcatechol enables the cold-patch liquid to have enough holding time, so that the construction quality safety is ensured, and the phenomenon that the viscosity is rapidly increased in the gel period after the induction period of the water-based UP is overcome. 本发明提供了基于不饱和聚酯树脂的沥青路面坑槽冷补液及其制备方法，原料包括A组分和B组分，按质量比计，A组分：B组分＝1：(5～10)；其中，A组分包括水性不饱和聚酯树脂、引发剂和阻聚剂,阻聚剂为叔丁基邻苯二酚；B组分中包括乳化沥青和相容剂。叔丁基邻苯二酚的掺入使的冷补液有足够的容留时间，保证施工质量安全，克服水性UP诱导期过后凝胶期粘度快速增长现象。