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LBT-1B30B Asphalt Mixture Low-Temperature Constrained Stress Tester (Low-Temperature Performance Test for Asphalt Mixtures—TSRST Method)

This system complies with the Ministry of Transport’s “Test Specifications for Asphalt and Asphalt Mixtures in Highway Engineering, JTG 3410‑2025,” as well as T0748‑2025, which specifies the low‑temperature performance test for asphalt mixtures (TSRST method). The TSRST method is used to determine the fracture temperature and fracture strength of asphalt mixtures during uniform cooling, thereby evaluating their low‑temperature performance.

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Asphalt Mixture Testing Equipment

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lbt@lbt.ltd

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+86-15102211717

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LBT-1B30B Asphalt Mixture Low-Temperature Constrained Stress Tester (Low-Temperature Performance Test for Asphalt Mixtures—TSRST Method)

Description

Product Introduction:

This system complies with the Ministry of Transport’s “Test Specifications for Asphalt and Asphalt Mixtures in Highway Engineering, JTG 3410‑2025,” specifically T0748‑2025, which outlines the low‑temperature performance test (TSRST method) for asphalt mixtures. It employs the constant‑rate cooling method—referred to as the TSRST method—to determine the fracture temperature and fracture strength of asphalt mixtures during uniform cooling, thereby evaluating their low‑temperature performance. The cooling rate is set at −10°C/h ± 1°C/h. The system was developed in accordance with the requirements of relevant research institutes and incorporates imported servo‑motor drive and control technology, advanced electronics, computer data‑processing capabilities, and refrigeration technology. By utilizing other fixtures manufactured by our company, it can also perform tests on other vertical loading mechanical parameters. The testing apparatus is driven by an imported servo motor that enables stepless speed regulation for both loading and unloading; sensor‑based data acquisition ensures precise measurement of test results. The entire testing process is automatically controlled by a microcomputer running under the Windows operating system. As a multifunctional domestic device for assessing the mechanical properties of asphalt mixtures, it is well suited for research and production testing in scientific research institutions and educational establishments.

Technical Specifications:

Parameter item	Parameter value
Loading speed	0.005 ~ 10 mm/min (stepless speed regulation)
Maximum load	30kN
Deformation Measurement System	Deformation measurement range ≥ ±2.5 mm, accuracy ±0.5 μm, resolution 0.1 μm; the deformation‑measuring material is an indium‑steel rod with a diameter of 6 mm ± 1 mm and a length of 210 mm ± 5 mm.
Load measurement system	Measurement range ≥ 25 kN, resolution 1 N, accuracy ± 10 N
Temperature sensor	Measurement range: +30 to -40°C; resolution: 0.1°C; accuracy: ±0.3°C.
Data acquisition instrument	A digital unit interface connected to the computer, capable of monitoring and recording electrical signals from load and strain sensors; data acquisition frequency ≥ 60 Hz.
Environmental chamber	Temperature control range: -40 to +30°C; temperature control accuracy: ±0.5°C; temperature ramp rate up to 10°C/h.
Total power	Approximately ≤5 kW
Power supply voltage	380V 50Hz
Computer and Peripheral Configuration	Intel Core i5 processor, 16 GB RAM, 320 GB hard drive, touchscreen monitor; HP monochrome laser printer, computer desk; running Windows control and processing 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?

Our WDW universal tester is applicable for tension, compression, bending, shearing and peeling tests of metal, plastic, rubber and composite materials. It supports test procedures in accordance with GB, ISO, ASTM, DIN, JIS multiple domestic and global standards. Equipped with high-precision servo drive and dedicated test software, it automatically collects, calculates and exports test data including tensile strength, elongation at break and elastic modulus.

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:

LBT-1B30B Asphalt Mixture Low-Temperature Constrained Stress Tester (Low-Temperature Performance Test for Asphalt Mixtures—TSRST Method)

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