grouting chemical for concrete

DH-400WS Wet Type Sealant

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  • Feature & Purpose
DH-400WS is high quality adhesive for solved by problem of humidity on Hardening of Epoxy resin.

Information

DH-400WS is a quality product, which has been developed as a solution to the unfavorable situation in which adhesive property and mechanical strength, the characteristics of the hardened substance, are drastically reduced when the moisture that has remained from the hardening process of epoxy resin causes a serious trouble to the reaction between the main material and the hardening agent. grouting chemical for concrete Having an excellent bonding strength with humid or wet part of concrete structure, it enables the sealing without drying the moisture of structure, thus and helping reducing the term of works.

Feature

  • It is a fast-hardening type sealing material and chemicals are not rolled up while they are agitated. It is suitable for work on the vertical surface and ceiling etc. because it can be removed easily with a hand grinder and does not run down.
  • It shows a superior mechanical strength in terms of compression strength, bending strength and tensile strength etc, compared to cement mortar or concrete. It is designed to withstand high pressure and has the property of high strength and adhesiveness.
  • The fully hardened composition does not cause any chemical action on the reinforcing bars or concrete structures, shows no shrinkage after hardening and maintains stable bondage because of little internal stress.
  • Compared to cement mortar or concrete, it has an excellent mechanical strength in all respects including compression strength, bending strength and tensile strength, etc. and can be used as sealing materials for steel plate compression injection because it is highly strong and adhesive and designed to withstand high pressure

Purpose

  • Sealing of cracks on wet surface and setting of the washers.

It is designed as a sealing repair product of the cracks without staying power or the joints of concrete structure and plastering mortar. It contributes to the restoration of staying power of the structure by filling (sealing) the large cracks and cut areas with a specially processed epoxy resin of high bonding strength, tensile strength and compression strength. grouting chemical for concrete It improves the durability of structures by preventing water leakage from cracks and corrosion of reinforcing bars by the infiltration of harmful gas in the air. Its applications are as follows.

  • Sealing of cracks of dry/wet concrete structure.

  • Sealing of gap produced by dry/wet cement plastering mortar and tile etc.

  • Sealing for grouting reinforcement of aged, weakened parts of dry/wet concrete.

  • Sealing for grouting repair of cracks on dry/wet concrete molding products.

  • Sealing of wet area when foam resin in injected.

  • 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-400WS Dimension Details
ClassificationMain ComponentHardening ComponentRemarks
Exterior AppearanceWhite PasteBlack Paste
Mixing Rate21 
Specific Gravity1.3 ± 0.11.2 ± 0.123±0.5℃
Pot Life(Min)60±1023±0.5℃
Tack Free Time(Hours)24±523±0.5℃
Hardening Time(Hours)36 ~ 48
Packing Unit10kg5kg
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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