| Chloride ion permeability test |
Φ10 × 5 cm |
Acceleration voltages: 0V, 20V, and 30V |
Penetration depth, Content |
| Antifreezing test |
10 cm×10 cm×40 cm |
Center temperature: - 17 ± 2°C and 8 ± 2°C Temperature range: 6°C to—15°C |
Mass loss Mechanical property, Stress-strain curve |
| Mechanical property measurement |
10 cm×10 cm×40 cm |
Loading speed: 2400 ± 200N / s |
Flexural strength, Compressive strength |
| Microstructure analysis |
1cm × 1cm × 1cm |
Terminate hydration:48 hours |
C-S-H gel, CH crystals, Micro-pores and cracks |
| XRD analysis |
1cm × 1cm × 1cm |
Test radius: ≥ 200 mm, Scanning speed: 10° / min, Scanning angle 2θ: 10–90°. |
CH crystal, Aft crystal, AFM crystal, C2S, C3S, C3A, and C4AF |
| Differential Scanning Calorimetry |
Fewer than 150 μm |
Dried at 105°C for 4 h, Temperature programmed rate was 15°C / min, Gas flow rate:50 mL/min |
Weight loss |
