Fasteners consisting of formwork elements are carried out using bolts that are inserted into plastic or metal nests passing through jumpers from the outside. Iron rods with plastic heads serve as spacers. Do not allow the shift and deflection of the formwork, and the reliability of its fastening should also be controlled.
The surface processing of the formwork
For multiple use of formwork, lubricate the shields. For lubrication, special formwork paste, wax, machine oil or lubricant are used for lubrication. Liquid lubrication must be applied with a pistol-spray.
A mixture for concrete having a neo -factory surface is prepared in concrete -components with a forced effect. It is necessary to compact such concrete using a deep vibrator with a frequency of a duration of about 50 seconds. Repeated vibration can be carried out in about an hour, it will reduce the likelihood of cracking. After the formwork is removed, the concrete should be closed with a film to protect it from dirt, dust and moisture. It is necessary to treat the mimic structure of the stone after a complete hardening of concrete, after about 4-6 weeks with manual or mechanical campaigns. This process allows grain to be more noticeable.
The second option implies the flushing of the still not completely hardened concrete using simple water. As a result, the grains become noticeable again. In the case of processing with a sandblasting apparatus, the surface becomes more even, but less plastic. This processing can be carried out after two weeks as the formwork was removed.
Obtaining a special surface of concrete
A special surface of concrete, which is carried out simultaneously with its main part, can be obtained in different ways. For example, using a steel sheet, which is slowly pulled up or pressing the concrete mixture to the formwork in a couple of suits.
Elimination of defects, updating and repairing a neopactive concrete surface.
In order to remove various defects, such as cracks, it is necessary to use synthetic putty. In addition, a trimmed neo -phased surface can be treated with silicone or fluate, which will increase its resistance to corrosion. To create concrete, it is necessary to acquire only high -quality sand.