TYPES OF FORMBOARDS USED IN CONSTRUCTION

1. What elements must be included in construction formwork for concrete structures? 

• Strong enough to resist the pressure or weight of concrete plus any construction loads.
• Stiff enough to retain shape without excessive deformation.
• Economical in total cost of concrete forms and surface finishes when required.
• Watertight enough to prevent leaks at joints.

- To reduce formwork costs for concrete structures, the following should be considered:

• Design the formwork to provide adequate but not too strong and rigid.
• Fabricate forms into modular sizes to provide multiple reuse without the need for recycling when practical.
• Prepare working drawings before fabricating samples.
• Craft formations on the ground rather than on scaffolding.
• Use the most economical formwork material considering initial costs and reuse.
• Do not use more nails than necessary to securely join the forms together.
• Remove formwork as soon as permitted.
• Clean and form the oil using a release agent after each use.
• When installation is permitted, construction works will be involved to reduce the total amount of material needed and allow tradesmen to work more continuously.

2. Construction formwork materials

Formwork materials can be classified as:

• Wooden formwork
• Metal formwork
• Plastic formwork

2.1 Wooden formwork in construction

Wood is classified as:

• Lumber: Lumber is a commonly available material and has excellent strength, weight and cost factors.

• Plywood

  • The use of plywood in shaped concrete to face the form has improved the quality of finished concrete.

  • The relatively large plywood panels have reduced construction costs and at the same time have provided smooth surfaces that reduce the cost of finishing concrete surfaces.

  • PIywood is a manufactured wood product consisting of a number of veneer panels, or plies.

2.2. Metal formwork

• The initial cost of metal formwork is more than that of wood formwork but the number of reuse of metal formwork is higher than that of wood.
• In the long run metal formwork can be economical.
• Large metal formwork constructions may require a lifting device to handle the formwork panels.
• Steel plate formwork has rust problems. To avoid rust, during each use the surfaces must be oiled with a suitable release agent.
• In using metal formwork, metal panels are prepared in panels of standard sizes. This brings difficulties in erecting irregular dimensions of formwork.
• Steel or aluminum or magnesium are the most widely used metals.

2.3. Plastic formwork

• They have an impermeable surface that typically creates a smooth layer to the concrete.
• Plastic formwork can be reinforced or unreinforced.
• The plastic is reinforced with fiberglass.
• Reinforced plastic is specially produced for a specific type of formwork.
• Unreinforced plastics are produced in sheet form with smooth or textured surfaces.
• Plastic formwork is lighter but less durable than metal formwork.

2.4. Types of formwork (according to shape)

• Column formwork
• Beam formwork
• Floor formwork
• Wall formwork

- Column formwork

• Column formwork is usually made of wood or metal panels.
• The principle is to create a closed box with frames at the exact size of the columns and fixtures.
• The box is held in position by steel post clamps or bolted pins and supported by rivets.

- Beam formwork

• Beam formwork includes a through opening and as it is not closed at the top requires more support framing to restrain the sides.
• The support needs to be maintained for the underside and also provide lateral support to the sides.
• Timber formwork, this is done using a tie on top of a vertical wall.
• Metal panels are joined together at the corners; but wooden posts are needed for vertical support.

- Floor formwork in construction

• The floor requires a large area of ​​formwork; usually supplied regularly from beam to beam.
• Wooden floor formwork consists of wooden panels; or plywood panels installed on a series of wooden slats.
• Wooden or metal base supports can be used for vertical supports.
• Metal plates can be used and bolted; or clamped together and held in place by a system of metal purlins; or board scaffolding system.

- Wall formwork

• Wall formwork is simpler in comparison; with other concrete structures because the actual force resisting it is less; most of the load is carried vertically down.
• The panels on both sides are held in position by locking joints.
• Locks are also used as spacers, aligning the wall thickness.
• Wall support systems are usually sloped trees.

3. Introducing a reputable design & construction consulting service provider

The importance of construction units is undeniable because their reputation will ensure the quality and aesthetics of your project. Today, there are many units providing construction design services to meet the increasing construction demand in our country. Therefore, finding a reputable unit is not easy and requires you to spend time researching. During the selection process, you need to research carefully and ensure that the accompanying unit must have high professional qualifications, many years of experience, have a clearly signed contract, transparent costs,... Currently Nowadays, according to feedback from some customers who have contacted Hung Nghiep Phu shows that there are currently many fraudulent units that are construction design consulting companies to scam people for many different purposes. To help customers save time searching, Công ty TNHH Đầu tư Xây dựng Hưng Nghiệp Phú confident that it will be the best choice for you.

Hung Nghiep Phu Construction Investment Co., Ltd. with the mission of bringing the best solutions and services, and building a prosperous community with customers, Hung Nghiep Phu is gradually asserting its brand through the Sincere cooperation, with a leadership team with ethical capacity, creativity, dedication to the profession and strategic vision. Hung Nghiep Phu owns a team of skilled and highly qualified staff who will bring customers the best quality projects. 

Hung Nghiep Phu Construction Investment Company Limited - specializes in constructing civil and industrial projects. We look forward to accompanying customers in construction projects as well as legal procedures such as planning diagrams, applying for construction permits, completing processes, and applying for fire prevention and fighting certificates. ,... If you have any questions or are in need of designing and perfecting the process, please contact us immediately for a free consultation!

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