NL9200735A - Set of concrete blocks and method for producing a layer of concrete blocks which is suitable for mechanical paving - Google Patents

Abstract

A set of concrete blocks comprises a number of layers of concrete blocks in a bond arrangement, which layers are suitable for mechanical paving. At least a limited number of blocks which are present at the edge of each layer are connected to an adjoining block by false joint 1 which extends over part of the thickness of the blocks and can be broken by vibration. In this way, the assembly becomes sufficiently stable without auxiliary means, such as half blocks and posts (piles) having to be introduced. <IMAGE>

Description

Title: Concrete brick package and method for the production of a layer of concrete bricks suitable for mechanical paving.

The invention primarily relates to a concrete stone package comprising a number of layers of concrete stones arranged in connection, which layers are suitable for mechanical paving. Such a package consisting of, for example, ten layers is usually transported on a pallet to a road to be provided with a new pavement. The package is strapped and to prevent stones from falling out of the package, free spaces on the outer edge of the package are filled with half stones and with poles extending over the height of the package. Installing these half stones and posts and removing them at work takes time and money.

The object of the invention is to avoid these drawbacks and to provide a concrete stone package indicated in the preamble that, without or less additional aids such as half-stones, is sufficiently stable to prevent stones from being moved from a layer or falling out of the layer.

According to the invention, the concrete stone package referred to in the preamble is characterized for this purpose in that at least a limited number of stones present at the edge of each layer are formed by a false joint with an adjacent stone extending over part of the thickness of the stones upon vibration. is connected.

By applying the invention, the paver can work faster and, apart from the pallets to move the stone packages, does not need auxiliary materials at work.

The invention also relates to a layer of concrete stones and a method for the manufacture of such a layer. It is known to pour concrete mortar into spaces bounded by a mold on a plank and to compact the poured mortar by means of stamping plates. At the location of a false joint to be applied, two outrigger plates with their bottom surface connect seamlessly to each other and at the location of this connection a downwardly projecting strip is formed which, when the outrigger plates are pressed into mortar, forms a gap that extends only over part of the thickness of the grout. Thus the false joint is formed. The stamp unit therefore deviates from the usual stamp unit, while the mold will also deviate slightly from the usual mold.

The invention will now be explained in more detail with reference to the figures.

Figure 1 shows a top view of a package consisting of layers of bonded concrete bricks using posts to hold the bricks in place in the package.

Figure 2 shows a top plan view of a package consisting of layers of related fabricated concrete bricks with no posts required to hold the bricks in place in the package.

Figure 3 shows a perspective view of the underside of a part of a stamping unit, which part is suitable for making a false joint between two stones.

Figure 4 shows a section through concrete stones that are connected to each other by a false joint.

The concrete brick package according to figure 1 comprises a number of identical layers of bricks stacked on top of one another, which have been manufactured in connection (for example a twill bandage or an elbow bandage). The package is transported on a pallet in a strapped condition. In three places, stones (which are provided with dots for clarity) are connected to each other by a false joint 1. The other stones are separate from each other. Poles 2 are provided in a number of open spaces on the side edges of the package, which make the package stable. If there were no stones connected by a false joint 1, the spaces indicated by 3 should be filled with half stones.

In Figure 2, six pairs of bricks are connected to each other by sham joints 1. If necessary, the dividing lines indicated with 1a (drawn with dotted lines) can also be designed as false joints. A package composed of layers according to figure 2 is stable without the use of posts 2 and half stones.

Figure 4 shows how a false joint 1 is constructed: two stones, which are adjacent to each other, are connected only over the lower part of their height. Above that connection point there is a slit 4 which widens at the top by two oblique facet edges 5. The slit 4 is, for example, 16 mm high and its width is, for example, 2 mm.

By connecting a limited number of bricks on the outside of a package by pairing a false joint in pairs, at least the half bricks in the spaces 3 can be left out and by adding more false joints in the stone layers, the piles 2 can also be removed. apart.

The stone layers of a package are made on a board which is pushed into the machine in a manner known per se. A mold is placed on the shelf consisting of perpendicular walls that delimit spaces in which concrete mortar can be poured. After the mortar has been poured, the concrete is compacted in the mold by means of a stamping unit, which is connected to vibration motors. The stamp unit and the mold are moved up successively and the shelf is slid out of the machine. The stones require approximately 24 hours of curing time to be removed from the shelf without risk of damage.

The stamp unit usually consists on the underside of a number of separate stamp parts corresponding to the number of stones to be formed, each of which fits into a mold part. Figure 3 shows a stamp part of such a deviating shape that two concrete stones with intermediate false joints can be compacted. The stamping part comprises two rectangular plates 6 and 7 with facet edges 8. The plates 6 and 7 are connected to each other and a downwardly protruding strip 9 is provided at the connection point, which can form a gap 4 above a false joint 1.

Each stamp part is, for example, connected via a rod 10 to a unit to be vibrated by a vibration motor (not shown). The longitudinal direction of the strip 9 preferably corresponds to the direction of movement of the board in and out of the machine in which concrete mortar is poured and compacted in the mold.

With mechanical paving, a layer of concrete stones is picked up by a suction part provided with suction cups or a mechanical clamp and placed on a surface to be paved. With the usual vibration, the false joints 1 will break.

Claims (3)

Concrete stone package comprising a number of layers of concrete stones arranged in connection, which layers are suitable for mechanical paving, characterized in that at least a limited number of stones present at the edge of each layer are spread over a part of the thickness of the stone-extending false joint (1) that is fragile when vibrating is connected to an adjacent stone. 2. Layer of concrete bricks intended for mechanical paving, characterized in that at least a limited number of bricks present at the edge of the layer is due to a false joint with an adjoining brick extending over part of the thickness of the bricks. connected. Method for the production of a layer of concrete stones according to claim 2, comprising pouring concrete mortar into spaces bounded by a mold on a plank and compacting the poured mortar by a stamping unit, characterized in that at the location of a two false plates with their bottom surface seamlessly connect to each other and at the location of this connection a downwardly projecting strip is formed which forms a gap when the stamping plates are pressed into the mortar, which extends over only a part of the thickness of the mortar .