郑州国际会展中心低收缩高防裂高耐久混凝土技术

郑州国际会展中心工程地下室底板为大体积超长混凝土结构，地下侧墙为薄壁超长混凝土结构，地上部分为超长超大面积混凝土薄板结构，设计采用低收缩高防裂高耐久混凝土技术。由于从原材料、混凝土配合比设计、施工、温度控制、养护等环节采取了有效的抗裂措施，工程达到了预期效果，混凝土质量优良。

TECHNOLOGY OF CONCRETE WITH LOW SHRINKAGE, HIGH CRACK-RESISTANCE AND HIGH ENDURANCE IN ZHENGZHOU INTERNATIONAL CONFERENCE AND EXHIBITION CENTER

In Zhengzhou International Conference and Exhibition Center Project, the basement foundation slab is of super long mass concrete structure, and the underground sidewall is of super long thin-wall concrete structure while the structure above ground is of super long, super large area and thin concrete slab. The technology of concrete with low shrinkage, high crack-resistance and high endurance is employed in the design. As effective measures against crack were taken in the steps of raw materials, concrete mixture ratio design, construction, temperature control and curing, the project has reached the anticipated effect and concrete quality is fine.