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repairs & grouts

CEMGROUT GP

USER CATEGORY :

TRADES CIVIL COMMERCIAL

Packaging

  • 25KG

PRODUCT INFORMATION & RESOURCES

DESCRIPTION:
CEMIX CEMGROUT GP is a general purpose, high strength, high flow, non-shrink cementitious grout. It contains admixtures that provide positive expansion when the grout is in its plastic state, and shrinkage compensation when it is in its hardened state.

TYPICAL USES:
General purpose and precision grouting applications including:
– Sizeable repairs to old and new concrete
– Machine foundations and base plates
– Anchor bolts and rods
– Void, recess and cavity filling
– Reinforcement ducts and pre-cast connections (including pre-cast columns and beams)
– Grouting pipe sleeves and liners

ADVANTAGES:
– Versatile – pourable, trowelable and pumpable
– Resistant to water borne salts
– Abrasion resistant

PREPARATION:
The substrate should be free of dust, grease, wax, oil, dirt, loose plaster, laitance, curing compounds, paint and all other friable materials and contaminants likely to prevent the grout bonding.

All concrete surfaces should be Saturated Surface Dry (SSD) where possible i.e. saturated surface with no free standing water prior to application.

All formwork should be constructed to prevent any leakage of grout while in its plastic state and to confine the grout during the expansion process.

When grouting base plates, the formwork should be constructed with enough room to use a header box. The use of steel strapping or bleed tubes are acceptable methods to release any air.

The formwork should be flushed out just prior to application.

It is also recommended to treat any formwork with a CEMIX formwork release agent prior to application.

It is recommended to prime the surface with a CEMIX bonding agent before the application of CEMIX CEMGROUT GP.

MIXING:
1. Add clean water to a mixing container.
25kg bag contents to water ratio:
– Drypack: 2.25L to 2.75L
– Plastic Trowellable: 4L
– Flowable Grout: 4.75L to 5L

2. Add CEMIX CEMGROUT GP slowly to the water, mixing constantly with a mixing paddle, until a smooth consistency is achieved.

APPLICATION:
1. Allow mix to stand for 60 seconds prior to immediate application.
2. Application is from one side only, completely filling the void, and avoiding air entrapment.
3. Rod grout to move and compact as required.
4. Trowel finish as required.

DRYING & CURING TIME:
To attain maximum compressive strength, minimise water loss during the curing process (at least 7 days).

CLEANING:
Clean tools with water immediately after use. If material becomes set on tools, remove using CEMIX CONCRETE DISSOLVER.

STORAGE & SHELF LIFE:
Up to 6 months when stored in the original, unopened packaging, in a dry place at 23°C and 50% relative humidity.

TECHNICAL DATA:

  • Appearance: Sand/ Cement grey
  • Height Change: Positive expansion
  • Strength: 50MPa @ 7 days; 60MPa @ 28 days;restrained; Max. 4L of water
  • Application Tempertaure: 5°C – 30°C
  • Bond Strength: >3MPa
  • Chloride ion permeability: <1000 Coulombs
  • Working time: 60mins@20°C
  • CRD FLOW CONE TIMES: 15mins: 32 secs; 45mins:32 secs

The data shown above reflects typical results based on laboratory testing under controlled conditions. Reasonable variations may occur on site.

LIMITATIONS:
If your project requires Building Consent, please email info@cemix.co.nz about the suitability of this product before use.

YIELD:

Approximately 13.6L or 0.0136m3 per 25kg bag with 4.5L of water.

STANDARDS:
Complies with NZS 4210:2001