目前混凝土施工工艺正向着两个极端方向发展：一是混凝土的高流动化，如泵送混凝土，自流平免震混凝土；另一方面是混凝土干硬化，如碾压混凝土。从性能上讲，这两种混凝土都在向高强、高性能化发展着。本文拟就碾压混凝土高性能化中外加剂的作用和关系加以探讨，试图论证用外加剂促使碾压混凝土高性能化的可能性和现实性。 At present, the concrete construction technology is developing in two extreme directions: one is the high fluidity of concrete, such as pumped concrete, self-leveling and shock-free concrete; the other is the dry hardening of concrete, such as RCC. From a performance point of view, both of these concretes are developing toward high strength and high performance. This article intends to discuss the role and relationship of the high performance of the roller compacted concrete admixtures, trying to demonstrate the feasibility and practicality of using admixtures to promote the high performance of RCC.