This study is proved to have practical significance for the construction of the Linhekou RCC arch dam and Test methods can be a useful reference for RCC mix design and material selection with retarating compound additive of other RCC dams.

• 本文所研究的超缓凝复合外加剂直接用于西安理工大学工程硕士学位论文商河口水电站碾压混凝土坝的建设，研究方法对其它掺缓凝外加剂的碾压混凝土坝的配合比设计及材料选择具有一定的参考价值。