Comparative Study on Self-Compacting Concrete Pouring Methods of AP1000 Structure Module

Modular construction technology is one of the main technical features of AP1000. But after the construction practices of two self-reliance supporting projects, we found that concrete poured in the module is extremely difficult, the advantages of shorter construction duration in modular construction will be seriously weakened, so we designed three different pouring methods: layered pouring method, layered continuous pouring method and loop continuous pouring method. Deep comparative analysis on the principle, characteristic and implementation effect of these three pouring methods are studied in this paper.