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The Role of Concrete Release Agents in Formwork Separation

What is a concrete release agent?

A concrete release agent is actually a material applied to the building template prior to the concrete is added so the template doesn’t stick to the concrete surface after putting, is just not simple to dismantle the cast or affects the finish of the concrete surface. Its main role in the template and the concrete covering to form a movie that is going to be separated from the two is also referred to as an isolation agent.

A water-based release agent is surely an crucial auxiliary in the release agent and can change the water-based release agent flow and levelling; its main attribute is stability to microorganisms and enzymes, which can reduce the expense of raw materials. A water-based mould release agent is used in forms and products functional processing additives; in the rubber, plastic, and Jinsu processing market, manufacturing mould items are not only so as to let the form release to enhance productivity and prolong the life of the form utilize. And can make the merchandise clean, size qualified, and decrease the generation of scrap, that is an crucial additive essential to casts and products – concrete release agent.

Concrete release agent plays an important role inside modern building building; its primary role is always to develop a layer of isolation motion picture between the design and the concrete area in order that the template doesn’t stick to the concrete surface so that it is much easier to dismantle the cast following flowing and to maintain the end of the concrete covering. Here, we will present the sorts, features, use and program of concrete release agent in detail.

Sorts of concrete release agent

Concrete release agents can be divided into many sorts in accordance with different grouping methods, and the typical grouping techniques are the subsequent:

  • According to the scope of use: it can be divided into concrete release agent for building, concrete release agent for bridges, concrete release agent for tunnels and so on.
  • According to the composition: it can be divided into water-based concrete release agents, petroleum-based concrete release brokers, silicone oil concrete release representatives, etc.
  • According to the the use effect: it can be divided into ordinary concrete release representatives, simple to remove concrete release representatives, high-gloss concrete release agents and etc.

Qualities of Concrete release agent

A concrete release agent is additionally called a concrete separation agent or mould release lubricant. It is actually a kind of compound coated on the inner wall of the formwork to play the role of lubricating and remoteness to ensure that the concrete may be smoothly detached from the formwork when taking down the formwork, and the condition of the concrete may be kept intact and undamaged. Compared with the traditional release material motor oil or waste motor oil, the release agent has the benefits of simple release, no pollution of the concrete surface, no corrosion of the template, easy to paint, low value and etc. However, not all types of concrete release representatives with a selection of materials made of templates are suitable for different supplies of the template and different building problems and finish requirements of the concrete must be selected for the suitable release agent in order to receive good results.

As an essential construction auxiliary material, concrete release agent has the next qualities:
Good isolation performance: concrete release agent can develop a dense remoteness movie between the formwork and the concrete covering, successfully preventing the formwork from bonding with the concrete covering and facilitating the dismantling.

Excellent lubrication performance: concrete release agent has good lubrication overall performance, which can lower the chaffing between the formwork and concrete area, decrease the resistance during pouring and enhance the construction effectiveness.

Good anti-adhesion efficiency: concrete release agents can successfully stop the formwork from bonding with the concrete covering, avoiding the formwork from damaging the concrete area when taking down the formwork.

Good waterproof efficiency: concrete release agent has good waterproof performance, which can successfully stop moisture from penetrating between the formwork and concrete, avoiding deformation of the formwork by moisture and enhancing the service life of the formwork.

Easy to use and safe: concrete release agent is easy to use; you only need to apply a layer evenly on the formwork; at the same time, it is safe and environmentally friendly and will not pollute the human body and the environment.

When using a concrete release agent, the following steps should be followed:

Prepare tools: concrete release agent is usually sprayed or brushed for construction. You need to prepare construction tools such as a sprayer or brush.

Choose the right release agent: According to the different environments, choose the right concrete release agent, such as indoor use can choose a water-based concrete release agent, and outdoor use can choose an petroleum-based concrete release agent.

Apply the release agent: Pour the appropriate amount of release agent into the sprayer or container, and then evenly spray or brush on the formwork to ensure that each part is coated in place.

Air drying: After application, wait for a period of time to allow the release agent to dry naturally. Generally, it takes 10-20 minutes, depending on the environment.

Pouring concrete: After the release agent is completely air-dried, the concrete can be poured. During the pouring process, care should be taken to avoid air bubbles or voids between the formwork and the concrete surface.

Demolding: Demolding can be carried out after the concrete reaches the strength of demolding. When dismantling the formwork, the connectors at the edge of the formwork should be dismantled first, and then the surface of the formwork should be knocked gently to separate the formwork from the concrete covering gradually. In case of tight bonding between the formwork and the concrete area, tools can be used appropriately to assist in the dismantling.

Clean up the template: after dismantling the template, the template should be cleaned up to remove the residual concrete and mould release agent. After cleaning, it can be used for the next time.

Application areas of concrete release agent:

Concrete release agent is widely used in all kinds of development projects, mainly including the following aspects:

Reinforced concrete structure: In the building of a reinforced concrete structure, concrete release brokers can be used for formwork isolation, stopping formwork from bonding with concrete and improving construction efficiency and quality.

Road construction: in road construction, the concrete release agent can be used to isolate the bond layer between the road formwork and concrete area, to avoid road bubbles, hollow drums and other problems.

Bridge project: In a bridge project, a concrete release agent can be used to isolate the bond layer between the bridge formwork and the concrete covering and boost the construction quality of the bridge pier and abutment.

Tunnelling project: In the tunnelling project, a concrete release agent can be used to isolate the bond layer between tunnel formwork and shotcrete surface to improve the quality and safety of tunnel construction.

Nuclear power project: In nuclear power project, a concrete release agent can be used to isolate the bond layer between the shell of nuclear power equipment and internal components to ensure the safety and stability of the equipment.

Other fields: concrete release representatives can also be widely used in water conservancy projects, wharf projects, airport projects and other fields to provide effective formwork isolation protection measures for various building projects.

In conclusion, concrete release agent, as an important construction auxiliary material, plays an indispensable role in modern development projects. By choosing the right type, the correct use method and a reasonable application field, can effectively improve the construction efficiency and quality of the building project and provide a strong guarantee for the growth of the development industry.

Concrete concrete release agent Supplier

TRUNNANO is a reliable concrete additives supplier with over 12-year experience in nano-building energy conservation and nanotechnology development.

If you are looking for high-quality concrete additives concrete release agent, Concrete water-reducing agent, please feel free to contact us and send an inquiry.

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