LIONLIN CUSTOMIZED COLUMN FORMWORK

Lionlin wooden cylindrical formwork is made from high-quality birch and poplar wood, known for its lighter weight compared to regular poplar wood, as well as its high strength, good toughness, and ease of construction. It is manufactured using large-surface laminated plywood, with both internal and external surfaces coated with epoxy resin for smoothness, waterproofing, and a certain degree of breathability.

The Lionlin wooden cylindrical formwork is easy to operate. It consists of 2-4 pieces assembled into a complete circle, with unique concave-convex groove design at the joints to ensure tight seams and prevent mortar leakage. The perimeter is reinforced with steel straps for high installation efficiency. The concrete columns poured using this formwork are not only smooth and well-formed but also visually and tactually pleasing. It can be reused multiple times and is easy to store.

Product Dimensions:

Note: Custom-shaped templates with a diameter of over 2200mm require customization based on provided drawings.

Product Weight:

Diameter 1500mm: Approximately 56KG per piece

Diameter 1900mm: Approximately 70KG per piece

Diameter 1250mm: Approximately 42KG per piece

Diameter 1650mm: Approximately 62KG per piece

Diameter 1000mm: Approximately 37KG per piece

Diameter 1400mm: Approximately 52KG per piece

The weight is approximately 12-13KG per square meter. It can be easily carried by two workers, making installation convenient and efficient.

Product Maintenance:

Repair:

For minor scratches or damages on the wooden cylindrical formwork, fill them with putty to level the surface, then seal with specialized repair paint. For larger damages, nails can be used to insert wedges, followed by putty and repair paint.

Maintenance:

After use, thoroughly clean the inner and outer surfaces of the wooden cylindrical formwork. Avoid using sharp tools during cleaning to prevent damage to the epoxy resin surface. For long-term storage, apply oil-based agents to protect the surface of the formwork.

Storage:

During storage, avoid exposure to sunlight and rain, which can cause severe deformation and aging of the surface film. On the construction site, store the formwork on a flat, dry surface, supported by at least three horizontal wooden blocks measuring 10*10cm each at the bottom, and avoid storing it in places with extreme temperature and humidity.

Construction and Installation Plan for Cylindrical Wooden Formwork:

1、Displacement Installation for Cylindrical Wooden Formwork Over Three Meters:

When the height of the column exceeds three meters, the two panels at the top and bottom connections of the formwork need to be installed in a displaced manner.

Displacement installation ensures the verticality and integrity of the cylindrical structure.（Note: Our cylindrical wooden formwork is manufactured as a single unit, with a maximum height of three meters. For heights exceeding three meters, assembly is required. However, for heights below three meters, custom orders are accepted.）

2、Horizontal Binding Requirement for Fixing Steel Straps:

Steel straps should be horizontally bound to ensure even stress distribution.The upper and lower margins of the fixed steel straps should be 25cm.（Installation Tip: When installing steel straps, it is best to use a steel ruler to measure the formwork. Nail 3-4 small nails around the formwork at the same height. Place the steel strap on the nails when installing the upper strap to maintain the horizontal installation of the strap.）

3、Reinforcement of Upper and Lower Interface of Formwork:

Due to the displacement installation of the formwork, the upper and lower horizontal interface of the formwork must be reinforced with steel straps.

The steel straps should horizontally cover the interface, and ensure that the interface is in the middle of the reinforced steel straps. This enhances the stability of the formwork and the construction effect.（Note: The screws for the steel straps should be staggered. This helps to create a balanced tension inside the formwork, enhancing its load-bearing capacity.）

4、Protection of the Formwork:

After installing the steel straps, protect the formwork by adding 5*10cm wooden blocks around the formwork.

Secure the wooden blocks with four steel pipes. The optimal spacing between the upper and lower steel pipes is 100cm.

This protection not only protects the wooden formwork but also cushions the pressure from the vibrating rod, resulting in better concrete finishing.

Additionally, this protection aids in vertical positioning of the formwork, ensuring uniform stress distribution and acting as a secondary reinforcement.

5、Pouring Concrete into the Formwork:

For small-diameter cylinders, pouring concrete up to a height of seven meters can be done in one continuous pour. For heights exceeding seven meters, it is advisable to pour in two separate stages. For larger-diameter cylinders, it is recommended to pour in sections of three meters at a time. After the first pour, wait for 120 minutes before proceeding with the second pour.

6、Formwork Removal Process:

To remove the formwork, start by removing the steel pipes, wooden supports, and steel straps attached to the exterior of the formwork. The formwork will naturally loosen and release. If there are any sections that do not release naturally, gently tap them at the interface of the grooves with a wooden stick to facilitate the release. Avoid using tools to pry open the formwork.