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US 700/720/740DB

Prefabricated Drainage Composite

US 700DB consists of a high flow, dimpled drainage core formed from a heavy duty impermeable polymeric sheet cuspated under heat and pressure, then bonded to a layer of woven filter fabric. The filter fabric retains soil and sand particles or freshly placed concrete or grout, allowing filtered water to pass into the drainage core.

US 720DB includes the addition of a protection sheet bonded to the back side of the core for soft membrane waterproofing systems. US 720DB is compatible with waterproofing systems without the use of a protection board.

US 740DB has the same core as 700 but bonded to a layer of 4 oz/sy non-woven filter fabric.

US 760DB has the same core as 700 but bonded to a layer of 6 oz/sy non-woven filter fabric.

US 780DB has the same core as 700 but bonded to a layer of 8 oz/sy non-woven filter fabric.

US 700/720/740DB
US 700/720/740DB Test Results
Property Test Method English Metric
Compressive Strength - CoreASTM D-162121,000 psf1,005 kNm2
Thickness - CoreASTM D-1777.40 in1.016 cm
Flow - CoreASTM D-471623 g/min/ft width286 l/min/m width
Flow - FabricASTM D-449160 g/min/ft2 (700/720)2,460 l/min/m2
Flow - FabricASTM D-4491140 g/min/ft2 (740)5,704 l/min/m2
Flow - FabricASTM D-4491110 g/min/ft2 (760)4,482 l/min/m2
Flow - FabricASTM D-449195 g/min/ft2 (780)3,870 l/min/m2
CBR Puncture - FabricASTM D-6241850 lbs (700/720)3,781 kN
CBR Puncture - FabricASTM D-6241250 lbs (740)1,113 kN
CBR Puncture - FabricASTM D-6241410 lbs (760)1,825 kN
CBR Puncture - FabricASTM D-6241500 lbs (780)2,224 kN
Apparent Opening Size - FabricASTM D-475140 US Sieve (700/720).42 mm
Apparent Opening Size - FabricASTM D-475170 US Sieve (740).21 mm
Apparent Opening Size - FabricASTM D-475170 US Sieve (760).21 mm
Apparent Opening Size - FabricASTM D-475180 US Sieve (780).18 mm
Grab Tensile - FabricASTM D-4632370 x 250 lbs (700/720)1.647 x 1.113 kN kN
Grab Tensile - FabricASTM D-4632100 lbs (740).445 kN
Grab Tensile - FabricASTM D-4632160 lbs (760)1,005 kNm2
Grab Tensile - FabricASTM D-4632205 lbs (780).912 kN
US 700/720/740DB Shipping & Packaging
Roll Sizeselect roll size from this list ->
Roll Diameter 20.0 in
Roll Width 4'
Roll Weight 50 lbs
Rolls per Trailer 265
AASHTO Plain Drainage
Geocomposite Drain
 
 

Puncture Strength ASTM D4833 is not recognized by AASHTO M288 and has been replaced with CBR Puncture ASTM D6241.

This information is provided for reference only and is not intended as a warranty or guarantee. US Fabrics assumes no liability in connection with the use of this information (1/2019).