Abstract: Silicone protective agent and fluorocarbon agent for as-cast finish concrete were used to treat the surface of C40 concrete. The treated concrete was compared to the one untreated with protective agent. The influence of protective agent on properties of concrete was systematically investigated. The results showed that protective agent effectively enabled the concrete to reduce its water absorption and carbonization depth, and to greatly improve its freeze resistance and weatherability.

Key words: as-cast-finish concrete, protective agent, silicone, fluorocarbon

摘要： 使用有机硅型和氟碳型清水混凝土保护剂对 C40混凝土表面进行处理，系统研究了保护剂对混凝土性能的影响，并与未处理的混凝土相比较。结果表明：保护剂有效地降低了混凝土的吸水率和碳化深度，大大提高了混凝土的抗冻性和耐候性。

关键词: 清水混凝土, 保护剂, 有机硅, 氟碳