OpenHW3 - An open-source, low-cost temperature-controlled orbital shaker.
Matthew Hollingham1, Yi Xiang1, Titus Reed1
1Re-AIM Laboratory, The Pennsylvania State University, USA.
Hardwarex
|September 12, 2024
Summary
A new low-cost apparatus, OpenHW3, offers standardized ion binding isotherm measurements for cementitious materials. This improves data reliability for infrastructure service life models.
Area of Science:
- Materials Science
- Civil Engineering
- Chemical Engineering
Background:
- Standardized methods for measuring ion binding isotherms in cement and concrete are lacking.
- This variability hinders accurate material characterization and performance prediction.
Purpose of the Study:
- To introduce OpenHW3, an open-source, low-cost apparatus for precise ion binding isotherm measurement.
- To validate the apparatus's performance against conventional methods.
Main Methods:
- Development of an open-source apparatus (OpenHW3) with optional temperature-controlled orbital shaking.
- Comparison of OpenHW3 results with conventional water bath and horizontal shakers.
- Testing temperature control accuracy between 25°C and 75°C.
Main Results:
- OpenHW3 provided comparable results to conventional water bath shakers.
- The apparatus yielded more reliable data than horizontal commercial shakers.
- Accurate temperature control was achieved within the specified range.
Conclusions:
- OpenHW3 offers a standardized, reliable, and accessible solution for ion binding isotherm studies.
- High-quality data from OpenHW3 can enhance service life models for infrastructure.
- Promotes open access to scientific equipment and reliable data for global infrastructure development.
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