The Role of Concrete Additives in Tailoring Mix Designs

What is a concrete release agent?

A concrete release agent is definitely a material applied to the building design before the concrete is poured so that the design doesn’t stick to to the concrete surface following flowing, isn’t simple to take down the cast or impacts the end of the concrete surface. Its principal role in the template and the concrete area to create a film that will probably be separated from the two can also be referred to as an remoteness agent.

A water-based release agent is an essential auxiliary inside the release agent and can change the water-based release agent flow and levelling; its primary attribute is actually stability to microorganisms and enzymes, which can reduce the expense of raw materials. A water-based mould release agent is used in casts and products functional processing additives; in the rubber, plastic, and Jinsu processing industry, manufacturing cast goods are not only so as to let the cast release to improve productivity and prolong the life of the form utilize. And can make the merchandise thoroughly clean, size qualified, and reduce the creation of scrap, which can be an important additive essential to moulds and goods – concrete release agent.

Concrete release agent plays an important role within modern building development; its principal role is always to create a layer of separation film between the template and the concrete covering to ensure that the design will not stick to the concrete area so that it is easier to dismantle the mould following flowing and to maintain the finish of the concrete covering. Here, we will present the kinds, features, use and application of concrete release agent in detail.

Sorts of concrete release agent

Concrete release representatives can be divided into many types based on different category techniques, and the common grouping methods are the subsequent:

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

Features of Concrete release agent

A concrete release agent is also referred to as a concrete isolation agent or mould release lubricant. It is really a kind of substance coated on the inner wall of the formwork to play the function of lubricating and separation so that the concrete can be effortlessly detached from the formwork when taking apart the formwork, and the shape of the concrete may be kept intact and undamaged. Compared with the conventional release material motor oil or waste motor oil, the release agent has the positive aspects of easy release, no pollution of the concrete covering, no corrosion of the template, easy to paint, low price and so on. However, not all sorts of concrete release agents with a selection of components made of templates are suitable for different components of the template and different construction 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 following characteristics:
Good remoteness efficiency: concrete release agent can create a dense remoteness movie between the formwork and the concrete surface, efficiently avoiding the formwork from bonding with the concrete covering and facilitating the demolding.

Excellent lubrication efficiency: concrete release agent has good lubrication overall performance, which can decrease the rubbing between the formwork and concrete surface, decrease the resistance during pouring and enhance the construction efficiency.

Great anti-adhesion performance: concrete release agents can efficiently stop the formwork from bonding with the concrete covering, steering clear of the formwork from damaging the concrete covering when taking down the formwork.

Great waterproof overall performance: concrete release agent has good waterproof overall performance, which can efficiently avoid moisture from penetrating between the formwork and concrete, steering clear of deformation of the formwork by moisture and increasing the service life of the formwork.

Easy to use and safe: concrete release agent is simple 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 area.

Demolding: Demolding can be carried out after the concrete reaches the strength of demolding. When taking down the formwork, the connectors at the edge of the formwork should be dismantled first, and then the covering of the formwork should be knocked gently to separate the formwork from the concrete area gradually. In case of tight bonding between the formwork and the concrete surface, 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 building projects, mainly including the following aspects:

Reinforced concrete structure: In the building of a reinforced concrete structure, concrete release representatives can be used for formwork isolation, stopping formwork from bonding with concrete and enhancing 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 covering, 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 surface 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 agents 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 development projects.

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