# US 2020/0399913 A1 · Concrete form panel, and concrete formwork comprising same

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- Number: US 2020/0399913 A1
- Document ID: US20200399913A1
- Status: Published application
- Kind: A1
- Application number: 16/444,246
- Filed: 2019-06-18
- Published: 2020-12-24
- Earliest claimed: 2019-06-18
- Inventors: Victor Amend
- Web page: https://patentgrep.com/patent/US20200399913A1

## CPC

- E04B 2/8647: {with ties going through the forms}
- E04B 2/8605: {without spacers}
- E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001})

## Abstract

A concrete form panel for a concrete formwork includes: a foam body having a concrete-facing surface and an outward-facing surface opposite the concrete-facing surface, the outward-facing surface having a plurality of slots formed therein; and a plurality of structural elements. Each structural element is accommodated in a respective slot, and has apertures formed therein for accommodating ties.

## Claims

### Claim 1

A concrete form panel for a concrete formwork, the concrete form panel comprising:
a foam body having a concrete-facing surface and an outward-facing surface opposite the concrete-facing surface, the outward-facing surface having a plurality of slots formed therein; and
a plurality of structural elements, each structural element being accommodated in a respective slot, each structural element having apertures formed therein for accommodating ties.

### Claim 2 (depends on 1)

The concrete form panel of claim 1, wherein each slot extends:
at least a portion of the height of the foam body, or
at least a portion of the length of the foam body.

### Claim 3 (depends on 1)

The concrete form panel of claim 1, wherein each slot extends the height or the length of the foam body.

### Claim 4 (depends on 1)

The concrete form panel of claim 1, wherein each structural element is bonded by adhesive to the foam body.

### Claim 5 (depends on 1)

The concrete form panel of claim 1, wherein each structural element is sized to have an outward-facing surface that is flush with the outward-facing surface of the foam body.

### Claim 6 (depends on 1)

The concrete form panel of claim 1, wherein the structural element is sized such that it protrudes beyond the outward-facing surface of the foam body.

### Claim 7 (depends on 6)

The concrete form panel of claim 6, wherein each structural element has an outward-facing surface that is offset from the outward-facing surface of the foam body.

### Claim 8 (depends on 7)

The concrete form panel of claim 7, wherein each structural element has a plurality of additional apertures formed in sidewalls thereof, the additional apertures defining a plurality of ventilation passages through the structural element.

### Claim 9 (depends on 7)

The concrete form panel of claim 7, wherein each structural element has an additional aperture formed in each sidewall thereof, the additional apertures defining a single ventilation passage through the structural element.

### Claim 10 (depends on 1)

The concrete form panel of claim 1, wherein each structural element comprises at least one layer of corrugated material.

### Claim 11 (depends on 10)

The concrete form panel of claim 10, wherein corrugations of the at least one layer of corrugated material define a plurality of ventilation passages through the structural element.

### Claim 12 (depends on 1)

The concrete form panel of claim 1, further comprising a film disposed on the concrete-facing surface.

### Claim 13 (depends on 12)

The concrete form panel of claim 12, wherein an interfacial strength between the film and the foam body is greater than the adhesive strength between the film and set concrete.

### Claim 14 (depends on 12)

The concrete form panel of claim 12, wherein the film is a film of plastic.

### Claim 15 (depends on 12)

The concrete form panel of claim 12, further comprising an adhesive layer disposed between the film and the foam body.

### Claim 16 (depends on 1)

The concrete form panel of claim 1, further comprising additional slots formed at edges of the outward-facing surface, each additional slot being sized to accommodate a portion of one of the structural elements.

### Claim 17

A concrete formwork, comprising:
a plurality of panels defining spaced, opposing sides of the formwork, at least some of the panels being concrete form panels each comprising:
a foam body having a concrete-facing surface and an outward-facing surface opposite the concrete-facing surface, the outward-facing surface having a plurality of slots formed therein, and
a plurality of structural elements, each structural element being accommodated in a respective slot, and each structural element having apertures formed therein for accommodating ties; and
a plurality of ties accommodated by the structural elements and connecting the panels of the opposing sides of the formwork.

### Claim 18 (depends on 17)

The concrete formwork of claim 17, wherein the panels defining both sides of the formwork are the concrete form panels.

### Claim 19 (depends on 17)

The concrete formwork of claim 17, wherein the panels defining a first side of the formwork are the concrete form panels, and the panels defining a second side of the formwork are hardboard sheets.

### Claim 20

A method of forming a concrete wall, comprising:
stacking a plurality of panels to define spaced, opposing sides of a formwork, at least some of the panels being concrete form panels each comprising:
a foam body having a concrete-facing surface and an outward-facing surface opposite the concrete-facing surface, the outward-facing surface having a plurality of slots formed therein, and
a plurality of structural elements, each structural element being accommodated in a respective slot, and each structural element having apertures formed therein for accommodating ties;
connecting opposing panels with a plurality of ties accommodated in the structural elements; and
pouring concrete into the volume defined between the opposing sides of the formwork.
