1, the bearing capacity of two concrete equipment foundation columns is 30 tons, and it will be poured for at least 28 days. Only after the concrete strength reaches 100% can the equipment be placed.

2. The concrete equipment foundation is clearly stipulated in the Code for Acceptance of Construction Quality of Concrete Structure Engineering (GB50204-20 1 1) that the formwork can only be removed after the strength of important components, columns and beams reaches the design strength. For the maintenance of mass concrete, temperature control measures should be taken according to the climatic conditions and construction technical scheme.

3. Water curing time of concrete: for concrete mixed with portland cement, ordinary portland cement or slag portland cement, it shall not be less than 7d; For concrete mixed with retarding admixture or with impermeability requirements, it should not be less than 14d.