Border — decoration of the sidewalk is not plain. Its installation is obligatory for protection of covering against spread and washing out. It is the finishing path fragment, it also plays role of the limiter which does not allow vehicles to come around on the pedestrian zone.
Types of borders and materials
The choice of any given type of border depends on type of road surfacing. If it is necessary to separate the busy carriageway from pedestrian path, use granite onboard stone. In aulas, on parking, as a rule, establish the vibropressed stones. And at playgrounds in shopping centers and on the pedestrian zones paved with paving slabs use the color decorative limiter from the same material, as the main covering. In this case the border performs exclusively decorative function.
At the device of paths of irregular shape the figured curbs representing the rounded or angular stone are used. If that is not available, the available rectangular element is cut on equal pieces.
Technology of laying of borders
The location of borders is defined at stage of planning of the site. Further there is breakdown of contours and installation of indicators to dredging for alignment of height. Under borders trenches of 10-15 cm in depth depending on type of stone escape. All prepared site is carefully rammed, stack the leveling binding gravel which performs also drainage function on it. That water did not stand within pedestrian path, this layer needs to be prolonged out of border limits with observance of biases from the center to edges. Under stone blocks fill sand layer. At this stage for curb or border leave deepening of the necessary height. In case with laying of paving slabs or stone the border is established along with stone blocks not to allow its razbeganiye. In case with road surfacing the borders can be established both to, and after laying of asphalt.
If there are no suitable curbstones, the paving slabs can replace them, only in that case it is put vertically, burying on the necessary height. It is not really economical, but in certain cases is the only exit.
For ensuring durability curbstones fix in deepenings with use of M100 solution, places of joints need also to be spilled solution and to fill up with sand. If the site experiences heavy load, the surface cover keeps within on concrete pad with preliminary installation of timbering which does not need to be removed at stage of installation of onboard stones. Curvilinear sides give all the best with use of curves in order to avoid violation of geometry.