Steps of concrete pouring?

Concrete pouring refers to the process of pouring concrete into a mold until it is plasticized. In civil engineering, concrete and other materials are put into molds and made into predetermined shapes. When pouring concrete, the free height of concrete should not exceed 2m, and corresponding measures should be taken when it exceeds 3 m.

Working procedure:

Cleaning: Before pouring, clean up the rubbish, dirt, oil stains and other sundries in the formwork, and check the cement mortar pad and plastic pad of the steel bar. Concrete mixing: determine the amount of various materials per plate according to the mix proportion, measure the moisture content of aggregate regularly, and adjust the water consumption of mix proportion in time. Concrete transportation: when pumping concrete, it is necessary to ensure that the concrete pump works continuously. Vibrating requirements: the free-falling height of concrete falling from the material mouth shall not exceed 2m, and measures must be taken if it exceeds 2m. Column pouring: Before column pouring, the bottom shall be filled with semi-stone concrete with the same thickness as the concrete mixture ratio of 5 to 10cm, and the column concrete shall be vibrated in layers. When using the internal vibrator, the thickness of each layer shall not be greater than 50cm, and the vibrating rod shall not touch the steel bar and embedded parts. Beam and slab pouring: The beam and slab of ribbed floor slab should be poured at the same time, and the pouring method should start from one end and adopt grouting method. Stair pouring: concrete in the stair section is poured from bottom to top.