Direct Tensile Measurement for Cemented Paste Backfill
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Test Apparatus
2.2.1. Rectangular Dog-Bone Mold
2.2.2. Compression to Tensile Load Converter
2.3. Experimental Protocol
2.3.1. Sample Preparation
2.3.2. Demolding Process
2.3.3. Test Procedure
3. Results and Discussion
3.1. Geometric Design
3.2. Stiffness Analysis
3.2.1. Critical Buckling Analysis for Rods
3.2.2. Shear Analysis
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
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Chemical Composition | CaO | SiO2 | Al2O3 | MgO | SO3 | Fe2O3 | Na2O | K2O |
---|---|---|---|---|---|---|---|---|
Portland cement, wt% | 61.1 | 19.4 | 4.6 | 3.3 | 2.3 | 2 | 2 | 0.7 |
Blast furnace slag, wt% | 37.1 | 36.1 | 10.4 | 13.2 | 3.4 | 0.7 | 0.4 | 0.5 |
Binder, wt% | 39.5 | 34.5 | 9.8 | 12.3 | 3.3 | 0.8 | 0.6 | 0.5 |
Mineralogy | Volume, % |
---|---|
Microcline | 40.00% |
Dolomite | 12.90% |
Quartz | 11.00% |
Albite | 5.30% |
Clinochlore | 3.20% |
Pyrite | 0.30% |
Amorphous | 27.20% |
Mineralogy | Volume, % |
---|---|
Quartz | 41.20% |
Microcline | 40.80% |
Albite | 6.30% |
Chlorite | 2.60% |
Muscovite | 0.80% |
Amorphous | 8.40% |
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Pan, A.; Grabinsky, M. Direct Tensile Measurement for Cemented Paste Backfill. Minerals 2023, 13, 1218. https://doi.org/10.3390/min13091218
Pan A, Grabinsky M. Direct Tensile Measurement for Cemented Paste Backfill. Minerals. 2023; 13(9):1218. https://doi.org/10.3390/min13091218
Chicago/Turabian StylePan, Andrew, and Murray Grabinsky. 2023. "Direct Tensile Measurement for Cemented Paste Backfill" Minerals 13, no. 9: 1218. https://doi.org/10.3390/min13091218