| Customization: | Available |
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| After-sales Service: | Online |
| Warranty: | 1 Year |
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LR-JY1581 ring-type limited shrinkage crack tester is based on ASTM C1581 standard, combined with advanced sensor technology, to limit the shrinkage of the specimen through a ring mold to simulate the constraints of the material in actual use. The shrinkage stress generated by the specimen during the drying process will cause cracking. By measuring the cracking time or stress development coefficient, the crack resistance of the material can be evaluated.
Evaluate crack resistance: Determine the shrinkage cracking tendency of the material under restricted conditions.
Quality control: Used to detect the quality of concrete and mortar to ensure that its crack resistance meets the requirements.
Material research and development: Help optimize material formulation and improve crack resistance.
Engineering application: Provide crack resistance data support for engineering design and construction.
Significance:
Prevent cracking: Help prevent material cracking and improve durability by measuring shrinkage stress.
Optimize design: Provide a basis for material ratio and structural design to reduce the risk of cracking.
Improve durability: Ensure that the material maintains good performance in long-term use and prolongs service life.
Reduce costs: Reduce maintenance costs caused by cracking and reduce engineering costs.
Zero-point saving function: ensure the continuity and reliability of the test.
No need to bond strain gauges: support direct use on site, easy to operate.
Diversified data export: test data can be exported to Excel, Word, and text formats for easy analysis.
Real-time display function: strain and curve are displayed online, which facilitates accurate judgment of the end of the test.
Reliable sensor design: the ring comes with wiring terminals to improve the stability and reliability of the sensor.
Innovative ring structure: installation, disassembly, vibration and transportation are more convenient and efficient.
Minimize temperature effects: effectively reduce the interference of temperature on test results.
Performance benchmarking internationally: product performance is comparable to similar imported products abroad, with excellent quality.
| Model Number | Type I | Type II | Type III |
| Test Capacity | 3 rings | 6 rings | 9 rings |
| Number of Channels | 3 channels | 6 channels | 9 channels |
| Outer Ring Inner Ring Diameter | 406mm | ||
| Inner Ring Outer Ring Diameter | 330mm | ||
| Inner Ring Inner Ring Diameter | 305mm | ||
| Height | 152mm | ||
| Measurement Range | 0~±30000με | ||
| Sensitivity Coefficient | 1.000~3.000 | ||
| Working Mode | Computer external control | ||
| Resolution | 0.1uε | ||
| Zero Drift | ±3με/4 hours | ||
| Power Supply | AC220V±22V 50Hz | ||
| Power Consumption | less than 60W | ||
| Software Size | 130M |
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