Product Introduction
Used for measuring the conversion of volumetric strain to length strain in mortar or concrete during the plastic stage by horizontally measuring length. This device employs advanced bidirectional non-contact measurement technology, enabling continuous monitoring of autogenous shrinkage in concrete or cement-based materials from the onset of casting. It 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, capable of conducting corrugated tube tests for both cement-based materials and concrete;
6、Data collector: Uses imported acquisition modules, each channel independent;
7、Maximum length of cement rigid support: 530mm ;
8、Cement corrugated tube: 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: Adjustable from 1-99 minutes;
13、※Connectable to the Internet, access official website for online upgrades;
14、Sensors use DB port mode, more stable, reliable, and convenient for plugging and unplugging;
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. The entire stand surface employs a mirror-finish process to minimize test errors;
18、※After the test, the device automatically calculates shrinkage results and stores them. Data can be copied to a computer, and built-in specialized software automatically generates test process data and related information, facilitating the publication of research results;
19、※Simultaneous dual display of specimen shrinkage and temperature/humidity change curves and tables;
20、Data supports USB export; with specialized analysis software, test data, curves, results, etc., can be viewed on PC;
21、Main unit weight: 5.0kg, can be placed on the operating table.
