Ambient temperature (°C) | -5 | 0 | 10 | 20 | ≥30 |
Operable time (min) | 60 | 45 | 30 | 15 | 20 |
Curing time (h) | 72 | 48 | 24 | 12 | 6 |
Mixture Ratio (weight ratio) | Density After Curing | Mixture Viscosity | Part A (Epoxy) | Part B (Solidifying Agent) |
3:1 | 1.5±0.1 g/cm³ | 18-22 pa·s | White paste | Red paste |
Colloidal Performance | Tensile strength (ASTM D638) | ≥55Mpa |
Tensile modulus (ASTM D638) | ≥3500Mpa | |
Elongation at break (ASTMD638) | ≥1.7% | |
Flexural strength (ASTM D790) | ≥70Mpa | |
Compressive strength (ASTMD695) | ≥82Mpa | |
Thixotropy index | ≥4.0 | |
Sagging mobility (25°C) | ≤2.0mm | |
Distortion temperature | ≥65°C |
Adhesion Performance | Steel-steel tensile anti-shear strength | ≥16Mpa |
Under the constraint drawing condition, ribbed steel bars and C30, Φ25, L=150mm tensilestrength | ≥11Mpa | |
Bonding strength with concrete C60, Φ25, L=125mm | ≥17Mpa | |
Steel-steel T impact stripping length | ≤25mm | |
Non-volatile matter content(solid content) | ≥99% |
Long-Term Performance | Wet and heat ageing | Compared with the short-term results at room temperature, -Decrease rate of shear strength: ≤12% |
Heat aging resistance | Compared with the short-term results at same temperature 10min, -Decrease rate of shear strength: ≤5% |
|
Freezing and thawing | Compared with room temperature, short-term results, -Shear strength decrease rate is not greater than 5% |
|
Fatigue stress | After 2×10^6 times continuous wave of fatigue loads, -Specimen still does not have sign of destruction |
|
Resistance to stress |
Steel tensile shear specimens - not destroyed creep deformation value less than 0.4 mm |
Resistance to Corrosion Medium | Resistance to salt | Strength decrease rate is only ≤5% No concrete damage, No cracks and still intact |
Alkaline medium | Strength does not decrease No concrete damage, No cracks and still intact |
|
Acid medium | Strength does not decrease No concrete damage, No cracks and still intact |