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Suzhou TECON Construction Technology Co., Ltd
Suzhou TECON Construction Technology Co., Ltd

How to Carry out the Quality Acceptance of the Shuttering Formwork Project?

1. What requirements should the installation of shuttering formwork meet?


(1) Mortar leakage is not allowed in the joints of the shuttering formwork; before pouring the concrete, the wooden shuttering formwork should be watered and moist, but there should be no water in the shuttering formwork;

(2) The contact surface between the shuttering formwork and the concrete should be cleaned up and coated with a release agent, but no release agent that affects the structural performance or hinders the construction of the decoration project shall be used;

(3) Before pouring concrete, the debris in the shuttering formwork should be cleaned up;

(4) For fair-faced concrete projects and decorative concrete projects, shuttering formworks that can achieve the design effect should be used.

Inspection quantity: all should be inspected.

Inspection method: observe.


2. Terrace and moulding bed used as shuttering formworks should be smooth and clean, and should not cause sinking, cracks, sanding or bulging that affect the quality of the components.

Inspection quantity: all should be inspected.

Inspection method: observe.


3. For cast-in-place reinforced concrete beams and slabs with a span of not less than 4m, the shuttering formwork should be arched according to the design requirements; when the design has no specific requirements, the arching height should be 1/1000 to 3/1000 of the span.

Inspection quantity: within the same inspection batch, for beams, 10% of the number of components and no less than 3 pieces of beams shall be spot-checked; for slabs, 10% of the number of representative natural rooms and no less than 3 rooms shall be spot-checked; In terms of large space structure, the slab can be divided into different inspection surfaces according to the longitudinal and transverse axes, and it is necessary to randomly inspect 10%, and no less than 3 surfaces.

Inspection method: check with level or pull wire and steel ruler.


4. The embedded parts, preformed holes and reserved holes fixed on the shuttering formwork shall not be omitted, and shall be installed firmly, and their deviation shall comply with the regulations

Inspection quantity: within the same inspection batch, for beams, columns and independent foundations, 10% of the number of components and no less than 3 pieces shall be spot-checked; for walls and slabs, 10% of the number of representative natural rooms and no less than 3 rooms shall be spot-checked, and no less than 3 rooms; for large space structures, the wall can be divided into different inspection surfaces according to the standard that there is a height of about 5m between adjacent axes, and the slab can be divided into different inspection surfaces according to the vertical and horizontal axes, and it is necessary to randomly inspect 10%, and there are no less than 3 surfaces.

Inspection method: steel rule inspection.

Note: When checking the position of the center line, it should be measured along the vertical and horizontal directions, and take the larger value.


5. The deviation of the installation of the cast-in-place structural shuttering formwork should meet the requirements

Inspection quantity: within the same inspection batch, for beams, columns and independent foundations, 10% of the number of components and no less than 3 pieces shall be spot-checked; for walls and slabs, 10% of the number of representative natural rooms and no less than 3 rooms shall be spot-checked, and no less than 3 rooms; for large space structures, the wall can be divided into different inspection surfaces according to the standard that there is a height of about 5m between adjacent axes, and the slab can be divided into different inspection surfaces according to the vertical and horizontal axes, and it is necessary to randomly inspect 10%, and there are no less than 3 surfaces.

Inspection method: steel rule inspection.

Note: When checking the position of the center line, it should be measured along the vertical and horizontal directions, and take the larger value.


6. The deviation of the installation of the prefabricated component shuttering formwork should meet the regulations

Inspection quantity: All shuttering formworks used for the first time and after major repairs should be inspected; shuttering formworks in use should be inspected regularly, and random inspections should be performed according to the use condition.

The allowable deviation and inspection method of installation of prefabricated component shuttering formwork