1 Introduction
2 Experiment Overview and Method
2.1 Experiment Overview
Item | Factor | ||
---|---|---|---|
Compressive strength, EMP shielding performance evaluation | W/C: 40% | ||
Series 1 | MCF mixing amount (%) | 1, 5, 10, and 20 | |
Thickness (mm) | 100 | ||
Series 2 | MCF mixing amount (%) | 5 | |
Thickness (mm) | 100, 200, and 300 |
Specimen | W/B | Unit weight (kg/m3) | ||
---|---|---|---|---|
Water | Cement | MCF (cement * %) | ||
Plain | 40% | 720 | 1800 | 0 |
MCF 1 | 1 | |||
MCF 5 | 5 | |||
MCF 10 | 10 | |||
MCF 15 | 15 | |||
MCF 20 | 20 |
2.2 Materials and Specimen Fabrication
Characteristic | |
---|---|
Filament diameter (µm) | 7 |
Bulk density (g/ml) | 0.22−0.28 |
Tensile strength (MPa) | 3150 |
Young’s modulus (GPa) | 210 |
Elongation at break (%) | 1.1–1.4 |
Carbon content (%) | > 90 |
Sizing content (%) | 0.5–1 |
Mean fiber length (µm) | 100 |