Concrete mixing plant - Mixer protection
Ready-mix concrete, which is produced in concrete mixing plants in stationary concrete plants, requires water-repellent high-performance greases as well as mixer protection products for the heart of the plant - the concrete mixer. This has the task of mixing the concrete batch in a short time. Divinol mixer protection effectively prevents the concrete from sticking.
The drum of the truck and the discharge chute are sprayed with high-quality mixer protection with dewatering properties to prevent the concrete from sticking and to protect the metal parts from corrosion. This ensures a long service life for the equipment. Environmentally friendly products based on vegetable oil are preferred here.
Product examples
- Divinol Mixer Protection Special
- Divinol Mixer Protection DW
- Divinol SYN BE Plus (Environment)
- Divinol Multimax Advanced 5W-30
- Divinol Multimax Premium 10W-40
- Divinol multi-purpose grease 2
- Divinol Grease Top 2003
Structural and civil engineering / precast plant
Preparation of the formwork and cleaning
In order to achieve the desired quality of the concrete surface, it is essential to clean and remove any dirt, concrete and dust adhering to the formwork. After the cleaning process, the formwork must be dried. Careful drying is important, as the release agent cannot be properly applied to
damp surfaces. In the precast plant, the formwork is roughly cleaned manually before use and then concrete residues and dust are removed using automatic brushing systems. It should also be noted that corrosion protection agents are removed from steel formwork that has not been used for some time. Our Divinol concrete remover provides good service for stubborn concrete residues. The cleaner can be used effectively against deposits in a ratio of pure up to 1:5.
Product examples
- Divinol concrete remover
Pre-treatment of formwork
Divinol concrete release agents can be applied to all formwork used in practice. For the various types of formwork, such as steel formwork, all-plastic formwork, high-quality plastic-coated formwork, etc., we have the appropriate high-quality release agent for you in our range, depending on the requirements of the formwork. These formwork types do not require any pre-treatment.
Pre-treatment of the formwork is necessary for rough-sawn timber formwork in order to avoid so-called "wood sugar". This occurs when exposed to sunlight, releasing wood constituents and causing sanding on the concrete surface. This can be prevented by using our Divinol formwork wax HFP. The product is sprayed on. After it has dried, the appropriate release agent can be applied.
Product examples
- Divinol shuttering wax HFP
Application of the release agent
For perfect results and easy stripping, the concrete release agent must be applied professionally. The spraying method with portable pressure sprayers on the construction site, in which the selected release agent is sprayed onto the formwork at high pressure, has proven itself for this purpose.
A flat spray nozzle delivers ideal results. On the one hand, this ensures that the release agent is applied evenly and thinly, which also means that the product is used sparingly and the cost-effectiveness of the application is guaranteed. Round jet nozzles, on the other hand, often lead to an increased application of the release agent. The optimum pressure of 4-5 bar in the container is generated by pumps, ensuring a clean spray pattern.
In addition to the portable sprayers already mentioned, stationary spraying systems are also used in the industrial production of construction elements in prefabrication plants. The working pressure is significantly higher here. Nozzles with smaller diameters are used there, which ensure a smaller,
even application. It is also important to work cleanly, as dirt particles can get into the release agent layer when the formwork is installed. These in turn cause stains or discoloration on the concrete surface.
Product examples
- Divinol B Classic
- Divinol SYN BE Plus
- Divinol Surface Premium KS
- Divinol High Liquid Surface