Environment-friendly quick-setting waste rubber powder, castor oil-based polyurethane concrete and preparation method thereof

The invention discloses environment-friendly quick-setting waste rubber powder and castor oil based polyurethane concrete, which is prepared from the following components in parts by weight: 6000 parts of aggregate, 1000 to 1500 parts of sand, 1500 to 2000 parts of cement, 1000 parts of castor oil, 500 parts of diphenylmethane diisocyanate, 10 to 20 parts of 1, 4 butanediol, 500 to 1000 parts of waste rubber powder and 1 to 3 parts of tertiary amine catalyst. The method has the advantages that the problems that the bridge expansion joint anchoring area is prone to cracking, breaking, rib exposing and other diseases, and secondary damage and poor durability are prone to occurring after current repairing materials are repaired are solved. 本发明公开了种环保型快凝废橡胶粉、蓖麻油基聚氨酯混凝土，包括如下重量份的组分：骨料6000份、砂1000-1500份、水泥1500-2000份、蓖麻油1000份、二苯基甲烷二异氰酸酯500份、1，4丁二醇10-20份、废橡胶粉500-1000份、叔胺催化剂1-3份。本发明的优点在于：解决桥梁伸缩缝锚固区易发生开裂、破碎和露筋等病害，而当下修补材料维修后又易发生二次破坏耐久性差的问题。