I, Usage:
The In-plane water transmissivity tester is used for determining the flow rate per unit width within the manufactured plane of geosynthetics inder varying normal compressive stresses and a constant head. The test is intended primarily as an index test but can be used also as a performance test when the hydraulic gradients and specimen contact surfaces are selected by the user to model anticipated field conditions.
Test Method:
The flow rate per unit width is determined by measuring the quantity of water that passes through a test specimen in a specific time interval under a specific normal stress and a specific hydraulic gradient. The hydraulic gradient(s) and specimen contact surfaces are selected by the user either as an index test or as a performance test to model a given set of field parameters as closely as possible. Measurements may be repeated under increasing normal stresses selected by the user.
Related standards:
ASTM D4716, ISOI2958 Geotextiles and geotextile-related products - Determining the (In-plane) Flow Rate per Unit Width and Hydraulic Transmissivity of a Geosynthetic Using a Constant Head.
II, Main technical parameters;
1, Sample size: 305x355mm
2, Max. thickness of specimens: 50mm
3, Max. thickness of airproof foam: 25mm
2, Normal pressure range: 10-250kpa
3, Dimension: 600x1200x1500mm
4, Weight: 150kg
Other related testing equipments:
YT010 Electronic geotextile universal testing machine
(Load Capacity 50kN, meet to ISO 10319 wide-width strip tensile, ISO 9037.4 static CBR ball burst test, ISO 12236 Puncture Resistance, ISO 13934-2 Grab Breaking strength test, etc.)
YT020 Geotextile water permeability test apparatus (meet to ISO11058)
YT030 Geotextile pore size test apparatus (dry sieve method, ASTM D4751)
YT030A Geotextile aperture pore size tester (wet sieve method, meet to ISO12956)
YT040 Geosynthetics dynamic perforation tester (meet to ISO13433)
YT050 Geotextile abrasion resistance tester ISO 13427, ASTM D4886
YT060 Geotextile thickness tester ISO9863, ASTM D5199
YT080 Automatic In-Plane Water Flow Capacity Tester (meet to ISO 12958, ASTM D4716)
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YT080 In-plane Hydraulic Transmissivity Testing Machine Images
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