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LBT328-1 Bridge Expansion Joint Assembly Tolerance and Waterproofing Performance Test Apparatus

This testing apparatus was developed in accordance with the test requirements of JT/327-2016, “General Technical Specifications for Expansion Joints of Highway Bridges,” and other relevant standards. It is primarily used for evaluating assembly tolerances, waterproofing performance, and deformation characteristics in the field of bridge expansion joints. The device can perform compression and tension tests on bridge expansion joints, simulating their actual stress conditions on highway bridges. It is suitable for conducting tests and assessments of assembly tolerances, waterproofing performance, and deformation behavior for modular single‑joint and double‑joint specimens.

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Specialized Testing Machine Series

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lbt@lbt.ltd

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+86-15102211717

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LBT328-1 Bridge Expansion Joint Assembly Tolerance and Waterproofing Performance Test Apparatus

Description

Product Introduction:

This testing apparatus was specifically developed in accordance with the test requirements of relevant standards, including JT/327-2016 “General Technical Specifications for Expansion Joints of Highway Bridges.” It is primarily used to evaluate assembly tolerances, waterproofing performance, and deformation characteristics in the field of bridge expansion joints. The device can perform compression and tension tests on bridge expansion joints, simulating their actual stress conditions on highway bridges. It is suitable for conducting tests and inspections of assembly tolerances, waterproofing performance, and deformation behavior for modular single‑joint and double‑joint specimens.

Meets the standard:

JT/T 327-2016 6.1.3.5.2 Assembly Tolerance Requirements – Compression Performance Test

JT/T 327-2016 General Technical Specifications for Expansion Joints of Highway Bridges, Appendix C: Test Method for Waterproof Performance

CJ/T 497-2016 Appendix C: Test Method for Waterproof Performance of Finished Expansion Joints

Technical specifications:

Project	Parameter
Display and Control	Microcomputer-controlled, with a 7.8-inch extra-large color display.
Clamping force unit	Units such as kN, N, and kgf are optional.
Test stand	1000mm*2200mm, two sets
Porous auxiliary fixture for testing	1.6 m² × 2 sets
Optical axis guide rail	6 items
Sample clamping method	Adjustable fixture positioning bolt
Sample clamping tool	Several
Maximum expansion space of the expansion joint	1000mm
Speed range	0–200 mm/min adjustable
Adjustable stroke of the specimen support device’s height difference	0-20mm
Sensor	50 kN × 2 sets (optional 100 kN)
Sensor load measurement range	2%–100%F.S
Sensor full-scale measurement accuracy	±0.02%F.S
Load displacement accuracy	±0.5mm
Displacement Control	0–100 mm, accuracy 0.5 mm (jogging + automatic)
Control method	Servo motor drive control, featuring bidirectional pushing and pulling forces, with wireless remote operation.
Test bench horizontal adjustment range	0-10mm
Constant-Load Displacement Dual-Function Synchronous Measurement and Control System	/
Display function	It features the ability to display both the magnitude of the push‑pull force and the displacement. The force, displacement, and velocity of the left and right worktables can be set independently and are controllable in magnitude.
Lateral misalignment deformation stroke	100mm
Maximum lateral displacement push-pull test force	50 kN × 2 (optional 100 kN)
Vertical misalignment deformation stroke	100mm
Maximum vertical displacement push-pull test force	50 kN × 2 (optional 100 kN)
Measurement accuracy of misalignment, deformation, and displacement	0.5mm
Test fixture	One set Quantity
Structural Design	It adopts a split‑type structural design, making it suitable for testing various samples.
Weight	3800KG
Power supply	220V 2000W
Appearance dimensions	2200×1000×760 mm (length × width × height), single test platform; 700×650×1400 mm (length × width × height), microcomputer control system.
Operational footprint	3.5*5 meters

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FAQs

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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

★★★★★

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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.”

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★★★★★

“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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LBT328-1 Bridge Expansion Joint Assembly Tolerance and Waterproofing Performance Test Apparatus

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