C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 24/24 (2006.01) C04B 28/04 (2006.01) E02D 29/02 (2006.01)
Patent
CA 2108964
In general, conventional gabions include metal baskets filled with rocks. These structures have several drawbacks including the susceptibility to destruction of the baskets under ice exposure conditions. Other systems include concrete slabs with horizontal tie backs or vertical concrete slabs hinged between poles or columns attached to a basket formed of synthetic material filled with rocks. The drawbacks of these systems include the requirement for labour intensive earthwork and heavy compacting equipment, and the expensive components. A simple gabion which avoids the above problems includes a lightweight, polymeric concrete panel and a basket defined by a flexible mesh sheet, at least the ends of which are embedded in and retained by the panel for reinforcing the panel, the sheet extending from the end of the panel and defining a closed loop with the panel for receiving fill, whereby similar baskets can be stacked on each other to form a retaining wall. The polymeric concrete mixture used in the gabion (and for other uses) includes approximately 16.9 to 24.04 weight percent portland cement, approximately 59.0 to 72.1 weight percent expanded shale or clay, approximately 5.5 to 13.0 weight percent water, approximately 3.3 to 7.4 weight percent polymer, and approximately 0.21 to 0.32 weight percent superplasticizer.
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