Product Description
UHPC Corrugated Tube Method Ultra-high Performance Concrete Autogenous Shrinkage Tester
1.Product Introduction
Ultra-high performance concrete (UHPC) is widely used in major infrastructure projects such as bridges, high-rise buildings, and marine engineering due to its extremely high strength, excellent durability, and outstanding mechanical properties. However, the shrinkage problem of UHPC has always been one of the key factors affecting its performance. The necessity of shrinkage testing is mainly reflected in the following aspects:
1. Evaluating material performance
Shrinkage characteristics analysis: The shrinkage of UHPC is an inevitable phenomenon in its hardening process. Measuring shrinkage can help researchers understand its volume stability.
Material optimization: Through shrinkage testing, the mix design of UHPC can be optimized, the occurrence of shrinkage cracks can be reduced, and material performance can be improved.
2. Ensure engineering quality
Crack control: The shrinkage of UHPC may cause microcracks inside the structure, affecting its mechanical properties and durability. Through shrinkage testing, the occurrence of cracks can be predicted and controlled to ensure the integrity and safety of the engineering structure.
Long-term performance evaluation: The shrinkage of UHPC will affect its long-term performance. Measuring shrinkage helps to evaluate its stability during service.
3. Supporting research on high-performance materials
UHPC property research: The autogenous shrinkage of UHPC has a more significant impact on the structure, and measuring autogenous shrinkage helps to further study its characteristics.
Additive influence: Through autogenous shrinkage testing, the influence of different additives (such as water reducers, expansion agents, etc.) on the shrinkage of UHPC can be studied to optimize the material formula.
4. Compliance with standards and specifications
Industry standards: Autogenous shrinkage measurement is an important part of many industry standards (such as ASTM C1698), and the measurement results can provide a basis for project acceptance and quality control.
Scientific research needs: In the field of scientific research, autogenous shrinkage measurement is an important means to study the microscopic mechanism and macroscopic properties of UHPC.
5. Preventing structural failure
Prestress loss: In prestressed concrete structures, autogenous shrinkage may lead to prestress loss, and measuring autogenous shrinkage can help evaluate and prevent this problem.
Deformation control: Autogenous shrinkage can cause deformation of the structure. Measuring autogenous shrinkage can provide data support for design and construction to ensure the safety and stability of the structure.
6. Promoting technological innovation
New material research and development: Through autogenous shrinkage measurement, the performance of new UHPC materials can be evaluated and technological innovation of building materials can be promoted.
Process improvement: Determining autogenous shrinkage can help optimize the construction process and reduce quality problems caused by shrinkage.
UHPC Corrugated Tube Method Ultra-high Performance Concrete Autogenous Shrinkage Tester
2.Product Paremeter
| Wide temperature range measurement |
| The temperature range of the eddy current displacement sensor is 10ºC~90ºC (higher temperature can be customized), which is suitable for a variety of test environments. |
| High and low temperature precision control |
| Equipped with high and low temperature test chambers, it can achieve uniform, stable and accurate temperature control to ensure consistent test conditions. |
| Temperature compensation design |
| Adopt Invar material rigid bracket and fine-tuning structure to minimize the impact of temperature change on the reference length. |
| Intelligent temperature correction |
| The software automatically corrects high and low temperatures to ensure that the measurement accuracy reaches the highest level during the test. |
| Forming consistency guarantee |
| Equipped with auxiliary forming base to ensure consistent loading during each forming process and improve test repeatability. |
| Non-contact bidirectional measurement |
| Non-contact bidirectional measurement can be performed after forming to ensure that the specimen is completely free to deform without external constraints. |
| Multi-group test support |
| One, two or three groups of tests can be performed at a time, and subsequent tests can be started at any time, which is flexible and efficient. |
| Intelligent touch screen operation |
| 7-inch large screen true color touch screen, friendly interface, easy operation. The software has obtained computer copyright (2019SR0630257). |
| Power-off data protection |
| After power failure, data is automatically restored and will not be lost. After power is restored, the test can be restarted and resumed. |
| Real-time data display |
| Online display of temperature, humidity and shrinkage data facilitates real-time monitoring of the test process. |
| Data export and analysis |
| Test data can be exported via a USB flash drive, and Excel file opening and analysis processing are supported for subsequent research. |
| Flexible range expansion |
| The measurement range can be expanded arbitrarily according to needs to meet different test requirements. |
| Convenient data storage |
| Equipped with a 16GB USB flash drive, it is convenient for data export and storage, and improves work efficiency. |
| High-precision measurement |
|
| Resolution |
1um |
| Measurement error |
No more than 2um |
| Range |
2mm (expandable) |
| Structural design |
|
| Maximum length of rigid bracket |
530mm |
| Bellows size |
Φ50×425mm |
| Data storage and expansion |
|
| Data file storage capacity |
256M (can be connected to external storage disk) |
| Temperature and humidity control |
|
| Eddy current sensor operating temperature |
10ºC~90ºC (higher temperature can be customized) |
| Host operating temperature |
0ºC~50ºC |
| Temperature measurement range |
0ºC~90ºC (higher temperature can be customized) |
| Humidity measurement range |
0%~100% |
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