PL112892B1 - Monolithic pavement element - Google Patents

Description

Patent description published: 02/27/1982 112892 reading room! Urxqd * Patentowego Int. Cl.2 E01C 5/00 Inventors: Wladyslaw Araszkiewicz, Tadeusz Jarosz, Antoni Debow ^ ki The holder of the patent: Warsaw University of Technology, Warsaw (Poland) Element of monolithic pavement The subject of the invention is the element of monolithic surface enabling the formation of this surfaces without the use of binding agents.

There are known elements for paving, which have the shape of a cuboid, in particular a cube, and are made of natural stones such as granite or base. In order to facilitate the monolithic pavement, these elements need to be joined with a cement mortar, which increases the cost of execution.

Paving stone elements are also known, as described in Polish Patent No. 48012. The stone has a regular hexagonal base and its side walls are inclined from the vertical plane alternately one to the outside and the other to the inside. The angle of inclination of the side walls to the vertical plane is alike, thanks to which, after laying the pavement, the cubes interlock with each other, and the pressure acting on each of them is evenly distributed over the adjoining k-stones. the production of cubes in mass production resulting from the hexagonal shape of the base.

The aim of the invention is to provide a paving element with a structure that facilitates forming in strip production, while maintaining mutual overlap of the elements placed next to each other.

According to the invention, this object is achieved by constructing an element whose upper surface has the shape of a rectangle. The side walls at the longer sides of the rectangle on one half of their length) deviate from the vertical planes to the outside, and on the other half of their length, at the same angle, to the inside.

The front walls and the planes connecting between the aforementioned side walls are inclined in one direction below. 10 with the same angle. The lower surface of the element results in the shape of a concave octave with right angles. This valley surface is provided with two depressions, preferably in the shape of half-cylinders or sections of cylinders with two different radii, which depressions follow the shape of the lower surface.

A pavement composed of elements according to the invention does not require the use of a joint mortar, as the elements interlock with each other and the pressure acting on each of them is evenly distributed over the adjacent elements. At the same time, the unexpected advantage is obtained, that thanks to the contact of the walls at an angle of 90 °, the structure of molds and machines for the mass production of 25 elements is significantly simplified compared to the molds and machines needed for the production of cubes according to the Polish patent. No. 48012. Moreover, the elements, according to the invention, can be laid in normal road and street conditions, also at curbs and rails 112 892 112 892, and the strength of the base may be significantly reduced compared to the value required for paving trilets or other known items. The total unit cost of a pavement made of the elements according to the invention is significantly lower than that of a comparable regular pavement. The invention is described in more detail in connection with the drawing in which Fig. 1 shows the element in top view, Fig. 2 - the same element in a side view, Fig. 3 - the same element in axcmometric projection, and Fig. 4 - a fragment of a pavement composed of elements according to the invention, in an axonometric projection.

As shown in the drawing, the upper face 1 of the element has a rectangular shape. The side walls 2, extending halfway along the side edges, are angled outwards at an angle of 20 °. The side walls 3, lying at the other half of the side edges of the surface 1, are inclined towards the inside pc at an angle of 20 °. The major 4 and minor 5 front walls, as well as the planes 6 joining the side walls 2 and 3, are all inclined in one direction and the same angle 20 °; The lower base of the element has the shape of a concave square with right angles, and in this base there are two semi-cylindrical indentations .7. and .8. The dimensions of the depths are adapted to the dimensions of the concave octagon in question.

Oh, be careful that you don't forget about O 'in 1. The monolithic pavement element having a rectangular upper surface, characterized by the fact that its side walls (2) extending halfway along the rectangle (1) inclined from vertical planes to the outside, and the lateral sockets (3) along the second half of the length of the rectangle (1) are inclined at the same angle inward, while the front walls (4) and (5) as well as the planes (6) they deviate from vertical planes in one direction and cut with the same calf. 2. Element according to claim A method as claimed in claim 1, characterized in that on the lower surface it has two indentations (7) and (8), preferably in the shape of half cylinders or cylindrical sections, adapted to the size and shape of the lower surface. 5 3 e * * Z \ - i.-y \\ .ii Fig. 2 Fig. 4 Fig 3 PZGraf. Koszalin, D-1135 95 copies A-4 Price PLN 45