What Is Concrete Formwork?

Concrete formwork refers to a set of structural systems of newly-formed concrete formwork and supporting formwork. The classification of formwork can be divided into different stages and methods, divided into two types according to shape: flat formwork and curved formwork; according to load conditions, it can be divided into load And non-load-bearing templates.

Unless otherwise specified, the quantities of cast-in-place concrete and reinforced concrete formwork are calculated in terms of the area of the contact surface between the concrete and the formwork in square meters.

1. The support mold height of cast-in-situ reinforced concrete columns, beams, slabs, and walls (that is, the height from the outdoor floor to the bottom of the slab or the surface of the slab to the bottom of the slab) shall be within 3.6m, and the part above 3.6m shall be used. Increase the amount of support works based on the excess calculation.

2. Cast-in-situ reinforced concrete walls and slabs with holes with a single hole area of less than 0.3 square meters are not deducted, and the hole side wall template is not increased; when the single hole area is outside 0.3 square meters, the hole side wall template area is Calculated into the wall and slab formwork.

3. The cast-in-situ reinforced concrete frame is calculated according to the relevant provisions of beams, slabs, columns, and walls, with wall columns attached to the calculation of the volume of the wall.

4. If the cup-shaped base cup height is greater than the length of the big side of the cup mouth, set the cup base quota item.

5. The overlapping area of the column and beam, column and wall, beam and beam, and the beam head and plate head projecting into the wall are not calculated.

6. The exposed area of the structural column should calculate the template area according to the exposed part. The formwork area is not calculated for the interface between the construction column and the wall.

7. Cast-in-place reinforced concrete cantilever board (

Frame column measurement and payout Plastering and leveling of the bottom surface of the column Determine the supporting mold plan,

Features of concrete formwork

1. The fair-faced concrete project is a concrete project that directly uses the natural texture of the concrete as the finishing effect. The final effect of the concrete surface quality mainly depends on the design, processing, installation and detailed treatment of the fair-faced concrete formwork.

2. Surface characteristics of the template: flatness, smoothness, seams, perforations, lines, decorative patterns and various pollutants are all printed on the concrete surface. Therefore, the fair-faced concrete formwork pays more attention to formwork selection, formwork block, panel division, arrangement of tension bolts and formwork surface flatness.

Construction features of concrete formwork

When installing the formwork, follow the principle of first inside, back outside, first horizontal wall, back vertical wall, first corner mold and then transverse mold seam. When hoisting, pay attention to the protection of the panel to ensure the verticality of the open seam and zen seam and the intersection. The template parts must be tightened evenly to ensure that the adjacent template parts are subjected to the same force to avoid uneven deformation of the template.