Structural module
AssigneePermavoid Limited
InventorRichard Granville Marshall
Life of this patent
Estimating the term…
Abstract
A sub-base layer for use in construction, comprises a plurality of connected substantially cuboid modules each having spaced-apart, substantially parallel top and bottom walls joined by a peripheral sidewall defining an enclosed volume. The connection between the modules is effected by a plurality of tie members which prevent lateral movement of the modules relative to one another. The layer is particularly useful as a lightweight replacement for aggregate sub-base layers in foundations, roadways, pavement, carparks, and the like.
Claims20
A vehicular trafficked pavement structure comprising:
- a sub-base layer, said sub-base layer including a plurality of connected, substantially cuboid modules each including spaced-apart, substantially parallel top and bottom walls joined by a peripheral sidewall defining an enclosed substantially hollow volume, the walls comprising apertures to permit the flow of fluid through each of the modules and between the modules, the connection between said modules being effected by a plurality of tie members which prevent lateral movement of the modules relative to one another, the sub-base layer including a structural layer, the pavement structure including a sub-grade where the sub-base layer is disposed directly on the sub-grade;
- and
- a plurality of surface layers separate from the sub-base layer and not comprising modules, said plurality of surface layers being disposed directly on top of the sub-base layer to provide a finished surface to support vehicular traffic.
A method of providing a vehicular trafficked pavement structure comprising:
- providing a sub-base layer, said sub-base layer including a plurality of connected, substantially cuboid modules each including spaced-apart, substantially parallel top and bottom walls joined by a peripheral sidewall defining an enclosed substantially hollow volume, the walls comprising apertures to permit the flow of fluid through each of the modules and between the modules, the connection between said modules being effected by a plurality of tie members which prevent lateral movement of the modules relative to one another;
- forming a sub-grade;
- disposing the sub-base layer directly on the sub-grade, the sub-base layer including a structural layer;
- and
- then disposing a plurality of surface layers distinct from the sub-base layer and not comprising modules on top of the sub-base layer to provide a finished surface for vehicular traffic.
Dependencies are inferred from the claim text.