The process of pouring concrete into the mold until plasticization - Concrete pouring

Concrete pouring refers to the construction process of pouring concrete into a mold until it is plasticized, mainly used in civil engineering and construction projects. This process uses P.S32.5 slag silicate cement, combined with fine sand, 16-30mm particle size stones, FJ-1 pumping agent and other materials. Preparation work such as operator training must be completed before construction. The pouring process includes cleaning the formwork, layer by layer vibration, and segmented continuous operation. The free height of concrete should not exceed 2m, and corresponding measures should be taken when it exceeds 3m. Column pouring requires filling with 5-10cm half stone concrete, beams and slabs are constructed synchronously using the "slurry pushing method", and stairs are poured continuously from bottom to top. If the transportation of concrete is interrupted for more than 45 minutes, the pipeline needs to be flushed. The vibration should follow the principle of fast insertion and slow extraction, and the layer thickness should not exceed 50cm. The construction joint treatment must reach a compressive strength of 1.2MPa and be chiseled and washed. The curing period should not be less than 7 days and nights, and the covering and curing of important parts should be extended to 14 days