{"product_id":"multi-layer-geotextile-thickness-gauge","title":"Multi-Layer Geotextile Thickness Gauge","description":"\u003ch2\u003e\u003cspan\u003eMulti-Layer Geotextile Thickness Gauge – QualiGTX™ TG ML\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe QualiGTX™ TG ML Multi-Layer Geotextile Thickness Gauge measures the thickness of individual layers within multilayer geosynthetic products without separating the bonded components. Mechanically separating bonded geocomposites can be difficult, and peeling a needle-punched nonwoven layer away from a drainage core alters the dimension being evaluated. This instrument maintains a stack of specimens under the specified pressure, allowing individual layers to be assessed in their compressed condition as installed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe gauge features a rigid frame with a fixed, flat lower plate and a movable upper plate of matching dimensions. Both plates have a rectangular shape and sufficient rigidity to limit deflection to no more than 0.1 mm across the specimen area under the test pressure, preventing measurable errors caused by the frame itself. The upper plate can be locked at any position along its travel, maintaining the target pressure throughout the measurement rather than only during the loading process.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFour smooth intermediate plates, each 1.0 mm thick and matching the specimens in area and shape, separate the five specimens arranged in the stack. Manufacturers of drainage geocomposites, geosynthetic clay liners, and composite separation products use the QualiGTX™ TG ML to record individual layer thicknesses for technical data sheets and conformity documentation. This procedure is performed after the average total thickness of the multilayer product has been established through single-layer measurement.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMulti-Layer Geotextile Thickness Gauge – QualiGTX™ TG ML Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe QualiGTX™ TG ML meets the need for individual layer thickness reporting when the components of a multilayer geosynthetic product cannot be separated.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDrainage Geocomposite Manufacturing\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e: Measures the nonwoven filter layer and drainage core independently, allowing the thickness of each component to be reported on the product data sheet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eGeosynthetic Clay Liner Production\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e: Records carrier and cover geotextile thicknesses in bentonite-cored products whose layers remain bonded together.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLaminated and Composite Geotextile Production\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e: Determines individual layer thicknesses in products that combine nonwoven, woven, and film components.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConformity and Type Testing\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e: Provides layer-specific measurements required for product certification documentation and CE marking dossiers.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eThird-Party Testing Laboratories\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e: Expands geosynthetic testing capabilities beyond total-product thickness measurement to include individual layer determination.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eProduct Development Laboratories\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e: Evaluates compression behavior in each layer of a composite as bonding methods, fiber weight, or core geometry are modified during development.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDispute and Claim Investigation\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e: Verifies whether a delivered composite meets the specified thickness requirements for its individual layers.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAcademic and Research Geosynthetics Programs\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e: Supports investigations into layer interactions and compression characteristics in bonded composite systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eMulti-Layer Geotextile Thickness Gauge – QualiGTX™ TG ML Key Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe QualiGTX™ TG ML is designed around the apparatus requirements for determining individual layer thicknesses rather than being adapted from a general-purpose thickness gauge.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFixed and Movable Plate Frame\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e: Combines a fixed, flat lower plate with a movable upper plate of identical dimensions, positioning the specimen stack between two parallel reference surfaces.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLockable Upper Plate\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e: Locks at any position along its travel to maintain the specimen stack at the test pressure during measurement, eliminating the need to release the load between compression and reading.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eControlled Plate Deflection\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e: Limits plate deflection to less than 0.1 mm across the specimen area under test pressure, preventing frame flexure from affecting the measured layer thickness.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWeight-Limited Upper Plate\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e: Keeps the upper plate's mass below the level at which its own weight would exceed the specified specimen pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFour Matched Separator Plates\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e: Uses four smooth, identical plates with the same area and shape as the specimens to prevent adjacent samples from interlocking within the stack.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e1.0 mm Separator Plate Thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e: Establishes a known, consistent separation between specimens, supporting repeatable measurements across successive tests.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFive-Specimen Stack Capacity\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e: Multiplies the dimension being measured, enabling thin individual layers to be resolved more clearly relative to the instrument's graduation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRectangular Plate Geometry\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e: Follows the specimen shape specified by the test method and promotes uniform pressure distribution across the contact area.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eTheory and Method\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eDetermining the thickness of an individual layer within a bonded composite presents a fundamental challenge. Needle-punched and thermally bonded products are designed to keep their layers joined. Attempts to separate these components can stretch fibers, disrupt the material structure, and produce measurements that no longer represent the product in its manufactured condition. Instead, this method keeps the composite intact and establishes the required measurement conditions around it. The product is compressed to the pressure at which its thickness is defined and held in that state while the individual layer boundaries are evaluated.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUsing a stack of five specimens provides more than a convenient testing arrangement. An individual layer in a geocomposite may measure considerably less than one millimeter thick, placing its dimension close to the resolution limits of mechanical measurement. Repeating the layer five times within the stack increases the measured dimension, allowing the instrument's existing resolution to provide finer effective resolution for each individual layer. The four intermediate plates prevent neighboring specimens from nesting together. Without these separators, compressed nonwoven surfaces can interlock with adjacent specimens, reducing the overall stack height and affecting the result.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlate performance is essential to measurement accuracy. The lower plate remains stationary while the upper plate moves downward, and both plates must maintain their flatness under load. Deflection exceeding 0.1 mm across the specimen area can introduce an error comparable to the thickness of the layer being measured. The upper plate's mass is also restricted to ensure that its weight alone does not compress the specimen beyond the specified pressure before testing begins. Locking the upper plate in position preserves the compressed specimen geometry throughout the measurement, ensuring that the recorded thickness represents the layer under load rather than its thickness after the material begins to rebound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eMulti-Layer Geotextile Thickness Gauge - QualiGTX™ TG ML Technical Specifications\u003c\/h2\u003e\n\u003ctable class=\"table table-style-align-center\" align=\"center\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\" width=\"611\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Configuration\u003c\/td\u003e\n\u003ctd\u003eFixed flat lower plate with movable upper plate of identical size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlate Geometry\u003c\/td\u003e\n\u003ctd\u003eRectangular\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpper Plate Positioning\u003c\/td\u003e\n\u003ctd\u003eLockable at any point in its travel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpper Plate Self-Weight\u003c\/td\u003e\n\u003ctd\u003eLimited so specimen pressure stays within the specified limit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlate Rigidity\u003c\/td\u003e\n\u003ctd\u003eDeflection no greater than 0.1 mm over the specimen area under test pressure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntermediate Separator Plates\u003c\/td\u003e\n\u003ctd\u003e4, smooth and identical, matching specimen area and shape\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeparator Plate Thickness\u003c\/td\u003e\n\u003ctd\u003e1.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecimen Capacity\u003c\/td\u003e\n\u003ctd\u003e5 specimens per stack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasuring Device Graduation\u003c\/td\u003e\n\u003ctd\u003e0.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrerequisite Test\u003c\/td\u003e\n\u003ctd\u003eMean total thickness of the multilayer product determined by single-layer measurement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Qualitest USA LC","offers":[{"title":"Default Title","offer_id":53459571474743,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/multi-layer-geotextile-thickness.webp?v=1793359632","url":"https:\/\/qualitest.us\/products\/multi-layer-geotextile-thickness-gauge","provider":"Qualitest USA LC","version":"1.0","type":"link"}