Preparation and application of concrete quick-setting waterproof agent

The invention relates to the technical field of concrete quick-setting, in particular to preparation and application of a concrete quick-setting waterproof agent which comprises the following components: potassium hydroxide, lithium hydroxide, aluminum hydroxide, deionized water, potassium dichromate, sodium dodecyl sulfate, sodium potassium tartrate tetrahydrate, a stabilizer, a thickener and a polycarboxylic acid water reducer. The modifier is obtained through cooperation of potassium dichromate and sodium potassium tartrate tetrahydrate, the setting time of the liquid accelerator is effectively controlled, it is guaranteed that the application environment of the accelerator is kept in a better state, the reaction operation efficiency is high, after normal accelerator mixing preparation is conducted, the polycarboxylic acid water reducer is further added, the water reducing capacity is increased for the accelerator, the water reducing effect is completely achieved, sodium dodecyl sulfate is added, the stabi