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Research on the Rapid Strengthening Mechanism of Microwave Field-Controlled Gypsum-Cemented Analog Materials
- Source :
- Minerals; Volume 11; Issue 12; Pages: 1348, Minerals, Vol 11, Iss 1348, p 1348 (2021)
- Publication Year :
- 2021
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2021.
-
Abstract
- Various geotechnical experiments have used gypsum-cemented analog geotechnical materials. However, this material needs a long curing time, and the target strength is not easy to control. Therefore, this research adopted microwave heating as the curing method for this kind of material. Objectively, the authors investigated the variations in the material strength versus heating power and heating time. On this basis, we clarified the influence mechanism of microwaves on the strength of analog materials by analyzing material temperature, moisture content, and microstructure, which eventually led to an experimental control method for rapid strengthening of microwave field-controlled gypsum-cemented analog materials. Consequently, we drew the following conclusions. The stable strength of the material under high-power microwave curing was much lower than that under natural curing, while the material strength under low-power microwave curing was the closest to the material under natural curing.
- Subjects :
- analog materials
Heating power
Materials science
Gypsum
microwave
Geology
engineering.material
Mineralogy
Geotechnical Engineering and Engineering Geology
Microstructure
analog physical simulation experiment
Strength of materials
gypsum cementation
Curing time
hardening rate
Microwave curing
engineering
Composite material
Curing (chemistry)
Microwave
QE351-399.2
Subjects
Details
- Language :
- English
- ISSN :
- 2075163X
- Database :
- OpenAIRE
- Journal :
- Minerals; Volume 11; Issue 12; Pages: 1348
- Accession number :
- edsair.doi.dedup.....2f539d82d1eddc7408238e0212eaaecb
- Full Text :
- https://doi.org/10.3390/min11121348