grouting chemical for concrete

DH-150 Super-low Viscosity

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  • Feature & Purpose
0.3mm Less to Dry-surface of hairline crack

Information

DH-150 is a structure repairing epoxy injection material which is easily injected into hairline cracks of concrete structures. DH-150 has high adhesive strength and complete water-resisting and reinforcing effect. grouting chemical for concrete It is highly effective in preventing rust on steel bars and recovering strength of concrete.

Feature

  • Perfect injection is possible to the end of hairline cracks of concrete thanks to its low viscosity and minimized surface

          tension which makes easier the infiltration into the minute cracks or the base members of the structure.

  • Compared to cement mortar or concrete, it has higher mechanical strength in all respects including compressive strength, 

          bending strength and tensile strength etc. And therefore widely used for repair and reinforcement of the concrete structures.

  • The excellent adhesive strength of epoxy resin ensures that the hardened composition maintains a sufficient adhesive

          strength for the cement mortar, concrete and reinforcing bar etc. and does not produce de-lamination from the base member
          of the structure.

  • 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.

  • 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, 

          thuswidens the overall bonding area and brings a strong bonding performance.

Purpose

  • It is intended as grouting material for steel plate reinforcing and crack repairing of all types of concrete structure without vibration.

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. grouting chemical for concrete Main applications are as follows.

  • Repair and reinforcement of hairline cracks in the subway and tunnel.
  • Repair and reinforcement of hairline cracks on PC plate, concrete molding products.
  • Grouting reinforcement of aged, weakened parts of concrete.

  • Repair and reinforcement of hairline cracks on slabs and upper plates etc.

  • 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.

Calculation

DH-150 Dimension Details
ClassificationMain ComponentHardening ComponentRemarks
Exterior AppearanceNo ColorBrown Liquid
Mixing Rate31Weight Ratio
Specific Gravity1.0 ± 0.11.0 ± 0.125±2℃
Viscosity(mPa.s)100 ~ 150150 ~ 20025±2℃
Mixture Viscosity(mPa.s)130 ± 5025±2℃
Pot Life(Min)6.0 ± 1.025±2℃
Tack Free Time(Hours)14±525±2℃
Hardening Time(Hours)24~4825±2℃
Packing Unit9kg3kg

 

DH-150 Property Data
Test CategoryResult ValueBase ValueTest Method
Viscosity( mPa,s )120Under 180

 

 

 

 

 

 

      KS F 4923

Compression Strength( N/㎟ )76Over 50
Adhesive Strength( N/㎟ )9.1Over 6
Seal Breaking Expansion Rate ( % )3.6Under 10
Seal Strength( N/㎟ )38.8Over 15
Hardening Contraction Rate ( % )0.6Under 3
Heating ChangeWeight Change Rate ( % )1.0Under 5
(110±3℃,168hr)Volume Change Rate ( % )1.2Under 5

 

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