Abstract:
An impact-absorbing assembly includes a covering layer being one or more of artificial turf, rubber mats, polymer mats, short pile carpeting, particulate infill, wood chips, and ground rubber chips. Also included is a layer of underlayment panels positioned beneath the covering layer. The panels have a panel section with a plurality of drain holes formed therethrough. A top surface of the panels is configured to support the covering layer. A bottom surface of the panels has a plurality of bottom projections that cooperate to define bottom channels suitable to permit water flow across the bottom surface, the bottom channels being in fluid communication with the panel drain holes. The bottom projections define a first spring rate characteristic that is part of a first stage and a second spring rate characteristic is part of a second stage, the first stage having a smaller volume of material than the second stage.
Abstract:
An underlayment panel includes a top surface and a bottom surface. A plurality of projections define drainage channels. A plurality of drain holes arranged through the panel provide fluid communication between the top surface and the bottom surface.
Abstract:
A method for installing a paver system includes positioning a first grid substrate adjacent to a second grid substrate. The first grid substrate and the second grid substrate are flexibly bridged with a first paver piece. A first portion of the first paver piece is movably coupled with the first grid substrate at a first joint, and a second portion of the first paver piece is movably coupled with the second grid substrate at a second joint, the first and second grid substrates and the first paver piece forming an articulated paver linkage. A second paver piece is coupled with the second grid substrate. A third paver piece is coupled with the first grid substrate. The articulated paver linkage is fit within the specified area by movement of at least one of the first, second and third paver pieces and the first and second grid substrates. The movement is transmitted along the articulated paver linkage to maintain a specified alignment and spacing of the first, second and third paver pieces.
Abstract:
An impact absorption panel is adapted for playground use and comprises a panel section and a plurality of projections. The panel section is defined by a top surface and a bottom surface. The plurality of projections extend from the bottom surface of the panel section. The plurality of projections have a first stage and a second stage. The first stage is configured to collapse initially when subjected to an impact load. The second stage is configured to provide greater resistance to the impact load than the first stage. The panel section is configured to provide greater resistance to the impact load than the first and second stages. The first stage can also be distinguished from the second stage by virtue of having a comparatively smaller volume.
Abstract:
Systems and methods for a permeable pavement system are described. The permeable pavement system includes blocks designed to facilitate water seepage between the blocks and to permit water storage within the blocks. The blocks may be cabled together to create paving units that facilitate installation and maintenance of the pavement system. The permeable pavement system provides improved management of stormwater, reducing runoff and facilitating infiltration of stormwater into the subgrade below the paving system.
Abstract:
A plastic extruded member is provided which will induce cracks in concrete and provide drainage for moisture entering the cracks. The member includes a base which sets upon the subgrade surface, with a pair of legs extending upwardly from the base. Arms extend laterally outwardly from each leg. As extruded, the legs are adjacent one another, and then spread apart as the concrete cures and shrinks, thereby inducing a substantially vertical crack in the concrete above the legs. The member includes a drain channel at the lower end of the legs. The gap between the legs which is created by the shrinking cured concrete provides a path from the crack to the drain channel for draining water entering the crack.
Abstract:
An essentially quadrate paving stone having a corresponding base block (21) is provided on all four side surfaces (25, 26) with flange-like, upright spacers (22) which are spaced apart from each other at intervals corresponding approximately to the width of the spacers, making it possible for them to make an interlocking connection with adjacent shaped paving stones of the same type. Furthermore, the bottom side (24) of the paving stone features a number of transverse, gutter-like depressions resulting in the formation of ribs between these depressions. This creates an additional dentification, or anchoring, in the bed surface of the installed paving stones.
Abstract:
An essentially quadrate paving stone having a corresponding base block (21) is provided on all four side surfaces (25, 26) with flange-like, upright spacers (22) which are spaced apart from each other at intervals corresponding approximately to the width of the spacers, making it possible for them to make an interlocking connection with adjacent shaped paving stones of the same type. Furthermore, the bottom side (24) of the paving stone features a number of transverse, gutter-like depressions resulting in the formation of ribs between these depressions. This creates an additional dentification, or anchoring, in the bed surface of the installed paving stones.
Abstract:
Environmental porous pavement materials are formed by encapsulating inner aggregates with cementitious material, adhesive admixture and sealant compounds. Recycled asphalt and recycled concrete products can be used. A mixing machine produces a homogeneous mix of the paving material by surrounding at least part of an aggregate with a coating liquid.
Abstract:
In the case of concrete blocks having narrow through holes for water drainage (perforated blocks), in particular paving stones of various formats and sizes that can be laid on surfaces exposed to the rain, such as streets, paths, squares, parking areas and rings around planted trees, and can be filled by means of jointing means or by means of sand at the lateral ends, the problem exists that the holes become plugged upon jointing or sanding-in. In order to prevent this, the holes are closed at their top end until the jointing or sanding-in operation is complete. This is advantageously accomplished by means of a filling agent that can be floated away or dissolves by means of the addition of water.