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TSY-9 Geosynthetic Vertical Permeability Tester

Applicable to all types of geotextiles and composite geotextiles with permeability.

Category:

Geosynthetic Testing Equipment

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E-mail:

lbt@lbt.ltd

WhatsApp:

+86-15102211717

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TSY-9 Geosynthetic Vertical Permeability Tester

Description

Product Introduction

According to the “Test Procedures for Geosynthetic Materials in Highway Engineering” JTG 3460-2026, this method is used to determine the vertical permeability of geosynthetic materials under unloaded conditions, at a constant hydraulic head, and under laminar flow conditions. It is applicable to all types of permeable geotextiles and composite geotextiles.

Product Features:

1. Specimen holder with a high-strength alloy aluminum structure

2. Colorful large-screen touch-control system with digital display and automatic timing.

Technical Specifications

Parameter Name	Parameter Specifications
Specimen dimensions	Φ50mm
External dimensions	700×650×1850(mm)
Overall machine weight	120kg

Test Procedure

1. Place the specimen in water containing a wetting agent, gently stir to remove any air bubbles that may be trapped within the specimen, and soak for at least 24 hours until the specimen is fully saturated. The wetting agent used is sodium alkylbenzene sulfonate at a volume fraction of 0.1%.

2. Place the saturated specimen into the permeameter’s clamping device, ensuring that no air enters the specimen during installation; if possible, perform the loading underwater.

3. Fill the permeameter with water until a hydraulic head difference of 50 mm is established across the specimen. Shut off the water supply; if the heads on both sides of the specimen do not equalize within 5 minutes, check for trapped air that has not been fully removed, re‑purge the system, and document this in the test report.

4. Adjust the water flow so that the head difference reaches 70 mm ± 5 mm, and record this value to the nearest 1 mm. After the head has stabilized for at least 30 seconds, collect the volume of water passing through the apparatus using a graduated cylinder over a specified time interval, with volume measured to the nearest 10 mL and time measured to the nearest 0.1 s. Collect a minimum of 1000 mL of water or maintain collection for at least 30 seconds.

5. For head differences of approximately 0.8, 0.6, 0.4, and 0.2 times the maximum head difference, repeat the procedure described in Section 4.4, starting with the highest flow velocity and ending with the lowest, while recording the corresponding seepage discharge and duration. For materials whose permeability characteristics are already well established, to ensure product quality, it may be sufficient to measure the flow velocity at a head difference of 50 mm.

6. Record the water temperature to an accuracy of 0.5°C.

7. Repeat steps 4.2–4.6 for the other specimens.

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FAQs

Do you supply full-set testing instruments for asphalt and geotechnical engineering projects?

We offer complete lab solutions including asphalt viscosity tester, asphalt rutting tester, geotextile permeability tester, low-temperature flexibility tester and concrete/cement test equipment, covering raw material detection for road, water conservancy and construction engineering projects

Can you customize fixtures or test machines based on our special test requirements? How about after-sales service and warranty?

We provide non-standard customization of test equipment and customized fixture clamps according to customers’ specimen size and test standards. All our testing machines enjoy 12-month factory warranty; overseas customers get remote online debugging guidance, spare parts supply and technical operation training. Our products have been exported to over 70 countries globally

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Does your pipe pressure burst testing machine control test temperature automatically? What’s its main application?

Yes, the constant-temperature circulating system keeps stable test environment during long-time hydrostatic resistance and instant burst pressure measurement of thermoplastic pipes. It complies with GB6111 standard and serves raw material inspection, new product R&D for plastic pipe manufacturers, third-party testing labs and university laboratories.

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What test items can your WDW series computer-controlled electronic universal testing machine complete? Which international standards can it meet?

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Customer Reviews

European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester

From Thomas Bennett, Quality Director, UK plastic pipe factory

2026.06.05

★★★★★

“We have purchased two sets of pipe testing equipment from Laibote (Tianjin) for 18 months. The ring stiffness and hydrostatic burst testing machines run stably for daily batch inspection, test data matches ISO standard requirements precisely, and the intelligent test software is easy for our operators to master. Their after-sales team offers timely remote technical guidance whenever we have operational problems, spare parts supply is efficient. We have arranged a second bulk order for our new production workshop and will recommend Laibote’s testing machines to our industry partners across Europe.”

Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment

From Mohamed Kareem, Lab Manager, UAE third-party construction inspection institute

2026.06.05

★★★★★

“We compared multiple testing equipment brands from Europe and China before cooperating with Laibote. Their WDW universal tester and full-set geotextile testing instruments meet local construction testing standards perfectly. Custom fixtures tailored per our specimen specifications save much testing time. Pre-sale technical communication was patient and professional; engineers provided online operation training after goods arrived. Stable machine performance greatly improves our laboratory’s detection efficiency, we are satisfied with cost performance and overall service.”

Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine

From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise

2026.06.05

★★★★★

“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

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Keywords:

TSY-9 Geosynthetic Vertical Permeability Tester

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E-mail:lbt@lbt.ltd

Address:Tianjin Jinghai Economic Development Zone

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