阅读说明：本技术 硬化的水泥基材料的非侵入修复和改造 (Non-invasive repair and modification of hardened cement-based materials ) 是由 C·瓦尔维尔德 R·加西亚 L·格拉尼索 于 2020-05-25 设计创作，主要内容包括：本发明涉及修复和/或密封硬化的水泥基材料,尤其是混凝土结构的水性组合物,该水性组合物包含胶体二氧化硅和聚羧酸。本发明的水性组合物显示开裂的水泥基材料的非常高的渗透深度以及密封能力。(The present invention relates to an aqueous composition for repairing and/or sealing hardened cementitious materials, in particular concrete structures, comprising colloidal silica and a polycarboxylic acid. The aqueous composition of the present invention shows a very high penetration depth and sealing ability of the cracked cement-based material.)