Product Introduction
This device is used to measure the volumetric strain of mortar or concrete in the plastic stage by converting it into length strain through horizontal length measurement. It employs an advanced bidirectional non-contact measurement method, which not only enables continuous monitoring of autogenous shrinkage in concrete or cement-based materials from the beginning of pouring and forming but also effectively avoids the influence of gravity, temperature changes, and mold constraints on test results.
Technical Parameters
1、Data file storage: 256M, expandable with external storage;
2、Number of test groups: 1 group/2 groups;
3、※Non-contact sensor, unidirectional/bidirectional measurement optional, range 3.0mm;
4、Device measurement accuracy: ≤2μm;
5、After upgrade, it can perform both cement-based material corrugated pipe tests and concrete corrugated pipe tests;
6、Data collector: uses imported acquisition modules, each channel independent;
7、Maximum length of cement rigid support: 530mm;
8、Cement corrugated pipe: Φ29×420mm;
9、Maximum number of records per test: over 30,000 records;
10、Control method: color touch screen;
11、Power-off memory function: automatically resumes previous test after power recovery without manual intervention, auto-recovery time adjustable;
12、Sampling frequency: 1-99 minutes adjustable;
13、※Can connect to the Internet, access official website for online upgrades;
14、Sensors use DB port mode, more stable and reliable, easy to plug and unplug;
15、Main unit operating temperature: 0℃～+50℃;
16、Sensor operating temperature: -20～+80℃;
17、※Multifunctional magnetic test stand uses the most stable triaxial triangular distribution for fixed installation, with mirror surface treatment to minimize test errors;
18、※After test completion, the device automatically calculates shrinkage results and stores them; data can also be copied to a computer for automatic generation of test process data and related information using dedicated software, facilitating research publication;
19、※Simultaneous dual display of specimen shrinkage, temperature, and humidity change curves and tables;
20、Data supports USB export; with dedicated analysis software, test data, curves, and results can be viewed on PC;
21、Main unit weight: 5.0kg, can be placed on the operating table.
