▎ 摘　　要

NOVELTY - Preparation of nanocomposite reinforcing solution involves stirring and heating a calcium chloride solution, adding a graphene quantum dot solution to a sodium hydroxide solution in a water bath, heating the water bath at a preset temperature, keeping the temperature for a preset time to form a mixed solution, adding the mixed solution to the heated calcium chloride solution, naturally cooling to room temperature to obtain a reaction liquid, and centrifugally cleaning and dispersing the reaction liquid using ethanol. USE - Preparation of nanocomposite solution used for reinforcing calcium-based stone artifact (all claimed) e.g. marble and limestone used in stone carving and building. ADVANTAGE - The method is simple, easy, uniformly disperses the composite reinforcing material in ethanol, and provides reinforcing solution having long-time storage stability and excellent reinforcement effect on calcium-based stone materials such as marble and limestone with loose structure. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) nanocomposite reinforcing solution; and (2) reinforcing calcium-based stone artifact using the nanocomposite reinforcing solution.