▎ 摘　　要

NOVELTY - Clear water concrete protecting agent comprises 12-25 pts. wt. acrylic emulsion, 0.5-1.5 pts. wt. bactericide, 0.5-1.5 pts. wt. wetting agent, 0.5-1.5 pts. wt. defoaming agent, 0.5-8 pts. wt. film-forming auxiliary agent, 0.5-8 pts. wt. anti-freezing agent, 0.5-1.5 pts. wt. pH adjuster, 0.5-1.5 pts. wt. thickening agent, 0.2-1.5 pts. wt. hydrophobic axillary agent, and 40-95 pts. wt. deionized water, where the hydrophobic axillary agent comprises amino group-containing polysiloxane solution. USE - Clean water concrete protecting agent used in concrete protection system for concrete protection of concrete surface and to concrete wall, concrete floor, concrete roof, concrete wall surface, concrete ceiling surface and concrete floor surface. ADVANTAGE - The clean water concrete protecting agent has long weather-resistant and strong hydrophobic system (i.e. acrylic emulsion system), and provides durability and super-strong stain resistance in keeping clean watercrete essential aesthetic feeling and super- strong hydrophobically performance, excellent washing resistance and weather resistance, ensures the concrete affected by the rain and other stains. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a clear water concrete protecting agent, involving: a. weighing the bactericide, wetting agent, antifoaming agent, anti-freezing agent and film forming auxiliary agent for the first mixing, mixing uniformly with the acrylic emulsion for the second mixing, then third mixing with the hydrophobic auxiliary agent; and b. mixing with the thickening agent pH regulator and deionized water uniformly to obtain product.