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LBT-1Z Geotechnical Rheological Direct Shear Creep Tester (Triple‑Channel Computer‑Automated Data Acquisition)

The LBT-1Z geotechnical rheological direct shear creep tester is used to apply a specified normal stress to the shear plane of a soil specimen and a controlled shear stress, thereby measuring the specimen’s shear deformation. This allows for the evaluation of the soil’s creep resistance under loading conditions and is well suited for use by institutions engaged in geotechnical testing and research.

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Geotechnical and Soil Testing Equipment

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lbt@lbt.ltd

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+86-15102211717

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LBT-1Z Geotechnical Rheological Direct Shear Creep Tester (Triple‑Channel Computer‑Automated Data Acquisition)

Description

Product Introduction:

The LBT-1Z geotechnical rheological direct shear creep tester is used to apply a specified normal stress to the shear plane of a soil specimen and a controlled shear stress, thereby measuring the shear deformation of the soil sample to evaluate its creep resistance under loading. It is well suited for use by institutions engaged in geotechnical testing and research.

Computer-based data acquisition, recording, and real-time graphical display, with data export in Excel format.

Technical Specifications:

Parameter Category	Parameter content
Soil sample specifications	Φ6.18*2.0cm
Normal force	4.8 kN (0–1600 kPa); Control accuracy: ±1%
Shear force	3 kN (0–1000 kPa); Control accuracy: ±1%
Vertical Deformation Measurement	Range: 0–10 mm; Measurement accuracy: ±1%
Horizontal Deformation Measurement	Range: 0–10 mm; Measurement accuracy: ±1%
Environmental Requirements	Temperature: 15–25°C; Humidity: 100%

The basic principles and structure of the instrument

1. Basic Principle of the Triaxial Rheological Direct Shear Tester

a. The normal force is applied using a rolling diaphragm pneumatic cylinder, with both the pressure regulator and the display unit supplied by CKD of Japan. The normal load reaches 4.8 kN, with a control accuracy of ±1%.

b. The shear force is controlled via a servo system, enabling both strain-controlled direct shear testing (with a rate range of 0.02–2.4 mm/min) and constant-shear-force control (for rheological tests). Shear force is measured using a dedicated sensor with an accuracy of ±1%.

c. The shear box is made of stainless steel to prevent corrosion under long-term, high-humidity conditions. A plexiglass structure is used to create a low‑humidity environment; its transparency allows observation of the shearing process. Humidification of this structure is achieved manually by providing an artificial water‑addition device to maintain 100% relative humidity.

d. Normal deformation, shear deformation, and shear force are all measured using sensors, with a measurement accuracy of ±1%.

e. Measurement controller: provides nine sensor input channels and three stepper motor output ports.

f. The data acquisition software supports acquiring test data at specified shear‑deformation or time intervals, includes sensor calibration functionality, provides real-time display of test data plots, and enables motor speed control. Upon completion of the test, the data can be exported in Excel format.

2. Structure of the Triaxial Direct Shear Creep Tester (Design Sketch)

Instrument Configuration

1. One direct shear creep tester

2. Three specially designed straight-cut boxes

3. Six 10 mm displacement sensors

4. Three 3 kN load cells

5. One air compressor

6. One measurement controller

7. Permeable stones (Φ6.18 cm), 6 pieces

8. Ring cutter (Φ6.18 cm), 3 pieces

9. Steel balls arranged in 6 rows

10. One set of computer software

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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.

What kinds of pipes fit your ring stiffness tester? Can it do long-term creep testing?

This equipment is designed for HDPE, PVC corrugated pipes, plastic drainage pipes and various plastic tubular products. Apart from ring stiffness, ring flexibility and flattening tests, it supports continuous long-term creep tests up to 1000 hours (42 days) as required by industry specifications, widely used for pipe factories and construction quality inspection institutes.

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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LBT-1Z Geotechnical Rheological Direct Shear Creep Tester (Triple‑Channel Computer‑Automated Data Acquisition)

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