Geocell for load support applications
AssigneePRS Mediterranean Ltd.
InventorsIzhar Halahmi, Oded Erez, Adi Erez
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Abstract
A geocell is disclosed that has high strength and stiffness, such that the geocell has a storage modulus of 500 MPa or greater at 23° C.; a storage modulus of 150 MPa or greater at 63° C. when measured in the machine direction using Dynamic Mechanical Analysis (DMA) at a frequency of 1 Hz; a tensile stress at 12% strain of 14.5 MPa or greater at 23° C.; a coefficient of thermal expansion of 120×10−6/° C. or less at 25° C.; and/or a long term design stress of 2.6 MPa or greater. The geocell is suitable for load support applications, especially for reinforcing base courses and/or subbases of roads, pavement, storage areas, and railways.
Claims27
A geocell formed from a plurality of polymeric strips, at least one polymeric strip having a storage modulus of 500 MPa or greater when measured in the machine direction by Dynamic Mechanical Analysis (DMA) according to ASTM D4065 at 23° C. and at a frequency of 1 Hz.
A geocell formed from a plurality of polymeric strips, at least one polymeric strip having a storage modulus of 150 MPa or greater when measured in the machine direction by Dynamic Mechanical Analysis (DMA) according to ASTM D4065 at 63° C. and at a frequency of 1 Hz.
A geocell formed from a plurality of polymeric strips, adjacent strips being bonded together to form a honeycomb pattern when stretched in a direction perpendicular to the faces of the strips, at least one polymeric strip having a long term design stress of 2.6 MPa or greater, when measured according to the PRS SIM procedure.
Dependencies are inferred from the claim text.