Paving block

Abstract

Abstract 1. Parallelepipedic paving stone made from highly compressed concrete filled with free-flowing natural stone material, whose surface (10) parallel to the bottom face has a surface length (2) of 6.0 to 50.0 cm (centimetres), whose surface width (3) is 6.0 to 20.0 cm, whose depth (4) is 5.0 to 20.0 cm, whose side faces (5 to 8) and bottom face (9) are smooth, planer faces formed on mould walls by removal from the mould, whose surface is fracturerough, characterized in that the surface (10) is a fracture surface produced by splitting and whose median plane (15) extends in plain-parallel manner to the bottom face (9) and whose roughness (28) extends over a depth (29) of 4.0 to 14.0 mm (millimetres) preferably 2.0 to 12.0 mm measured at right angles to the median plane (15) and that the surface (10) is dressed (i.e. finely chipped) at least along one border (22) and approximately to the height of the lower limit (26) of the roughness (28) to a straight edge, which passes into the roughness with a rising slope (27) at an angle (31) of 15 to 45 degrees, preferably 25 to 35 degrees.

Inventors

• 👤 Alois Arnheiter

Bibliographic Details