The main function of lubricant for formwork - a reduction of the adhesion between the formwork elements and the concrete mixture, creating a protective film on the inner surface of the structure. In General, the use of lubricant for formwork will help us to avoid many of the problems that can occur in monolithic construction. Let's examine them in more detail.
When carrying out solid work, we need that the solution is completely filled out the form and does not form voids. For small structures using simple techniques like tapping the formwork on all sides or shtykovaniem shovel solution. In industrial construction it is used a special vibration equipment, which concrete mix is displayed and the air it becomes more dense and durable. So when sealing the solution it fits snugly against the inner side of the casing, which complicates its subsequent dismantling.
During disassembly of the formwork, there is a high likelihood of damage to not only the shuttering boards, but also the very concrete design. Now increasingly used formwork systems, which consist mostly of metal structures and plastic sheeting, these materials are concrete not as much as stick to wood, but metal is subject to corrosion, to avoid it will help the use of lubricants for formwork.
And what properties should have the grease for formwork? For starters, such a mixture must be chemically neutral and to concrete mixes and formwork elements. Further, the lubricant must have sufficient viscosity, which allows it to tightly hold on both horizontal and vertical structures, even at elevated temperatures and in conditions of technological steaming. Of course, the lubricant must not leave spots and stains on concrete products, so as not to impede finishing. Well, security, of course. The composition must not be harmful to human health.
As for the consumption of lubricant for formwork, it varies depending on the type and quality of surface coating. Having considered all kinds of lubricants, we know that 1 l of lubricant is enough for 10-20 m2 of surface.
Please note that the consumption of wood more than metal and plastic.
After reviewing all these factors, we developed a special grease for forms and formwork "Monolith", which is a modified mixture of oils without solvents and is safe for human health.
It is suitable for use on the surface of any type, completely eliminating the grip surface and shape. This lubricant does not leave any traces on the finished product, does not spoil their appearance even when heated to 80C. Unlike analog, greasing for forms and timbering "Monolith" has a small flow rate (1 l 20-40 m2 for wooden and 65-80 m2 on a plastic or metal surface), and the best cost. Applied to the surface it can be as automatic dispensers, and manually using a roller, brush or brush.
Remember that the use of lubrication not only extends the life of the formwork of any type, but will also prevent the destruction of ready-made designs during removal.