Plate-shaped concrete block and process and device for the manufacture of the same
AssigneeSF-Vollverbundstein-Kooperation GmbH
InventorGerhard Hagenah
Life of this patent
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Abstract
In the case of earth coverings made from concrete paving slabs, the noise generated by rolling traffic is disadvantageous. In order to reduce the generation of noise, plate-shaped concrete blocks exhibiting a significantly larger format than traditional paving slabs are proposed. The top side of the concrete blocks consists of a sound absorption layer (13) of porous concrete. On the bottom side, the concrete block is curved inwards, so that the fringe areas are subjected to a higher load. This results in a stable situation. For the purpose of draining off the surface water, the concrete block is equipped at the sides with upright slots (16), which adjoin the absorption layer (13) of porous concrete.
Claims11
Plate-shaped concrete block for covering roads, paths and squares, characterised by the following features for the reduction and absorption of sound caused by rolling traffic:
- a) a sound-absorbing absorption layer (13) of porous concrete is disposed on a block element (12) made from concrete,
- b) a top side of the absorption layer (13) is level, a bottom side of the absorption layer and, accordingly, a top side of the block element (12) are of curved configuration, the absorption layer (13) exhibiting greater thickness at fringes of the block,
- c) the block element (12) is equipped on a bottom side thereof with a curvature (18), such that the concrete block is configured to exhibit a greater height at the fringes of the block.
A process for the manufacture of concrete blocks for covering roads, paths and squares, wherein each block is plate-shaped and is characterized by the following features for the reduction and absorption of sound caused by rolling traffic;
- a) a sound-absorbing absorption layer (13) of porous concrete is disposed on a block element (12) made from concrete,
- b) a top side of the absorption layer (13) is level, a bottom side of the absorption layer and, accordingly, a top side of the block element (12) are of curved configuration, the absorption layer (13) exhibiting greater thickness at fringes of the block,
- c) the block element (12) is equipped on a bottom side thereof with a curvature (18), such that the concrete block is configured to exhibit a greater height at the fringes of the block;
- said process characterised in that the block (11) is shaped, having its top side (14) downwards, in a mould (22), an ancillary charge for the formation of the absorption layer (13) being first poured into the mould (22) and, following on from this, a core charge for the formation of the block element (12).
A plant for the manufacture of concrete blocks for covering roads, paths and squares wherein each block is plate-shaped and is characterized by the following features for the reduction and absorption of sound caused by rolling traffic:
- a) a sound-absorbing absorption layer (13) of porous concrete is disposed on a block element (12) made from concrete,
- b) a top side of the absorption layer (13) is level, a bottom side of the absorption layer and, accordingly, a top side of the block element (12) are of curved configuration, the absorption layer (13) exhibiting greater thickness at fringes of the block,
- c) the block element (12) is equipped on a bottom side thereof with a curvature (18), such that the concrete block is configured to exhibit a greater height at the fringes of the block;
- said plant being for the execution of a process characterized in that the block is shaped having its top side (14) downwards, in a mould (22), an ancillary charge for the formation of the absorption layer (13) being first poured into the mould (22) and, following on from this, a core charge for the formation of the block element (12);
- said plant comprising a table on which one or more moulds (22) for the shaping of paving slabs (11) can be disposed, and storage containers for an ancillary charge and for a core charge, from which the charges for the formation of a twin-layer paving slab (11) can be poured into the moulds (22).
Dependencies are inferred from the claim text.