PACKING MAT AND PRODUCTION METHOD Russian patent published in 2006 - IPC E02D31/04 E02B3/16 C08J9/06 E04B1/684 

FIELD: protective arrangements for foundations or foundation structures, particularly watertight packings.

SUBSTANCE: packing mat comprises base, open-cell foam plastic material connected to the base and covering web. Opened foam plastic cells are filled with swelling clay. Covering web is connected to the base by means of seams. The base and the foam plastic material are made as a single sheet having 3-10 mm thickness. The sheet has sealed shell arranged from the first sheet side and opened cells located from another sheet side. Cell lengths, widths and depths are from 1 mm to nearly 10 mm. Packing mat production method is also disclosed.

EFFECT: increased time of clay drying, prevention of crack formation in clay layer.

8 cl, 3 dwg