The invention relates to a chemical slip
casting strengthening material and a preparation method thereof. A chemical slip
casting strengthening material with two components (component A and component B) is provided, thus effectively solving the problems existing in conventional chemical slip
casting materials, such as slow
polyurethane polymerization, poor
flame retardation and environment
pollution. When the chemical slip casting material is used, the component A, i.e. phenolic resin, and the component B, i.e. curing agent, are mixed according to a weight ratio of 1:1. The phenolic resin is obtained by firstly mixing
phenol and
formaldehyde according to a weight ratio of 1:1.3-1.5, then adding the catalyst NaOH, heating the mixture to a temperature of 90-100 DEG C, causing the reaction to last 4-6 hours, carrying out
neutralization and
dehydration, cooling the mixture to 25 DEG C and adding
foaming agent and surfactant for full mixing. The curing agent consists of 0.6-1.0 part of p-toluenesulfonic acid by weight, 0.8-1.3 parts of
phosphoric acid by weight, 0.5-1.0 part of
hydrochloric acid by weight and 0.1 part of
ethylene glycol by weight. The chemical slip casting material needs a short time for solidification, has an inflaming retarding
oxygen index higher than or equal to 54, and is suitable for the slip casting strengthening
engineering of a mine, as well as the seepage-proofing, leaking stoppage and strengthening work of an ordinary underground
engineering or a water conservancy
engineering.