Stones used for rough pavement

To cover local squares, pedestrian safety lanes. Road and area coverings for biggest coverings, ditch coverings, and other loads, road borders as supports of asphalt curbs and friezes.

Sort type width cm Weight cm length cm kg /i)cs Piece/in2 correlation of short and long stones can vary freely (Di towards D2, D3 towards D4, D5 towards D6)
stones for rough covering Dl 17...19 17...19 17...19 15 27
D2 25...28 22 18
D3 12...14 17...19 11 27
D4 25... 2 8 16,5 18
D5 15...17 15...17 15...17 11 35
D6 22...25 18 25

A) Hand processing

Front (upper) area, rectangle limited with rectilinear edges, an even surface if possible, i.e. the difference between the hollows and the bulges to be 7mm max., if bigger unevenness it needs machine processing.

The side surfaces and the lower side need to be roughly split in such a way that the side areas can be at an angle of 2 cm as the upper and the lower surface must be in parallel if possible.

Reception is done per piece (one by one)

B) Machine processing

By all sides, split only, at least one surface (the outgoing one) must be within the limit values of length and width and if possible to be rectangular-limited and even; the roughness of the surface, i.e. the difference between the hollows and the bulges to be 10 mm max. The boundary surfaces can be at an angle of up to 2.5 cm and the limit values of the height can be below or over 1.5 cm.

Reception is done according to the weight of the piece.