Epoxy injection material is used in small crack of the concrete material. It is a dry low viscosity injection material designed for grouting on bridges, dams, pillars, beams, slabs and many other parts. DH-200 shows high physical strength once hardened, and provides superior corrosion resistance and rust-proof characteristics, contributing to enhancing the concrete reinforcing effect. DH-200 has been widely used for recovery of concrete strength.
It is intended as grouting material for steel plate reinforcing and crack repairing of all types of concrete structure without vibration.
Thanks to the high fluidity based on its low viscosity, it enables the easy penetration into the minute cracks or base members of the structure and also enables the perfect injection into the end side of minute cracks of concrete by minimizing surface tension.
Depending on the site condition, you can choose one from low pressure grouting method, medium pressure grouting method and high pressure grouting method, which makes your injection of grouting material much easier.
It is hardening slowly and leaves no shrinkage at all after hardening. Due to the low viscosity, it can infiltrate deep into the inside of cracks and the concrete layer of the base member of the structure, thus widens the overall bonding area and brings a strong bonding performance.
The excellent adhesive strength of epoxy resin ensures that the hardened composition makes a strong bondage with cement mortar, concrete and reinforcing bars etc. After epoxy resin is injected, the fully hardened composition does not create any chemical action on the reinforcing bars or concrete structure, and offers an outstanding durability by preventing corrosion.
The treatment of concrete surface can be another way of securing durability and water-tightness for those cracks that have width of below 0.2mm, but it is used for the job sites where surface treatment and filling methods cannot prevent any water leakage from cracks, corrosion of reinforcing bars and carbonization etc.
Main applications are as follows:
• Repair and reinforcement of minute cracks in the subway and tunnel
• Repair and reinforcement of minute cracks on PC plate, concrete molding products
• Grouting reinforcement of aged, weakened parts of concrete
• Repair and reinforcement of minute cracks on slabs and upper plates etc
• Waterstops treatment of wet leakage areas of concrete structures
Pot Life – the period of time during which you can work without a change in viscosity after resin and hardener are mixed.
Tack Free – the state of hardening in which you can lightly touch the mixed resin with your hand, but the hardened material does not stick.
Hardening Time – the time it takes for the mixed resin to be hardened enough to realize about 80% of final mechanical strength.
| Classification | Main Component | Hardening Component | Remarks |
|---|---|---|---|
| Exterior Appearance | No Color | Brown Liquid | |
| Mixing Rate | 2 | 1 | |
| Specific Gravity | 1.11 ± 0.2 | 0.98 ± 0.02 | 23 ± 0.5℃ |
| Viscosity (mPa.s) | 180 ~ 220 | 60 ~ 80 | 23 ± 0.5℃ |
| Mixture Viscosity (mPa.s) | 220 ± 50 | 23 ± 0.5℃ | |
| Pot Life (Min) | 60 ± 10 | 23 ± 0.5℃ | |
| Tack Free Time (Hours) | 14 ± 5 | 23 ± 0.5℃ | |
| Hardening Time (Hours) | 24~36 | 23 ± 0.5℃ | |
| Packing Unit | 10 KG | 5 KG |
| Test Category | Result Value | Base Value | Test Method |
|---|---|---|---|
| Viscosity (mPa.s) | 240 | Under 270 | KS F 4923 |
| Compression Strength (N/mm²) | 87.3 | Over 50 | |
| Adhesive Strength (N/mm²) | 9.3 | Over 6 | |
| Seal Breaking Expansion Rate (%) | 9.6 | Under 10 | |
| Seal Strength (N/mm²) | 54.2 | Over 15 | |
| Hardening Contraction Rate (%) | 0.6 | Under 3 | |
| Heating Change (110±3℃,168hr) – Weight Change Rate (%) | 1.1 | Under 5 | |
| Heating Change (110±3℃,168hr) – Volume Change Rate (%) | 1.4 | Under 5 |
LOW VISCOSITY DRY EPOXY RESIN
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