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Sleeve Grouting Material for Reinforcing Steel Bar Connection

SLEEVE GROUTING MATERIAL FOR REINFORCING STEEL BAR CONNECTION CGM-T800 SLEEVE GROUTING MATERIAL FOR REINFORCING STEEL BAR CONNECTION is a cement-based, dry-premixed material, it is made up of high-grade cement, fine aggregate and various concrete admixtures. When it is used on site, directly add......

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SLEEVE GROUTING MATERIAL FOR REINFORCING STEEL BAR CONNECTION
CGM-T800 SLEEVE GROUTING MATERIAL FOR REINFORCING STEEL BAR CONNECTION is a cement-based, dry-premixed material, it is made up of high-grade cement, fine aggregate and various concrete admixtures. When it is used on site, directly add water as per the project requirement to form a self-flowing slurry. It has advantages of low viscosity, good fluidity, high strength, strong adhesion, no shrinkage and so on.


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Item

Executive Standard / Product Specifications

JC/T408-2013 cementitious grout for coupler of rebar splcing

CGM-T800

Compressive strength
(Mpa)

1d

≥35

≥38

3d

≥60

≥66

28d

≥85

≥90

Flexural strength(mm)

Initial value

≥300

≥360

30min retention value

≥260

≥340

Vertical expansion rate%

3h

≥0.02

≥0.025

Expansion value difference between 3h and 24h

0.02-0.5

0.15

24h limit expansion rate% (Enterprise standard)

0.01-0.02

0.015

Rebar grip strength (round steel)/MPa

28d

≥4.0

≥4.2

Corrosive effect on steel bars

NO

NO

Bleeding rate %

0

0


Scope of application:
This product is suitable for the joint grouting of industrialized residence, prefabricated houses and prefabricated components of bridge. It can also be used for secondary grouting of large equipment foundations, grouting of steel structure column angles and hanging plate lights and the other areas where the strength and fluidity requirement of the grouting material is high.


Sleeve grouting construction process:
Check whether the grouting hole and the air outlet of the steel sleeve are blocked first, If any blockage, eliminate it.→ connect the grouting pipe and prepare the plug. → Mix the water according to the recommended water consumption. Generally, we recommended to use a low-speed forced mixer and stir for 3-5 minutes; Since there are many bubbles after the hand drill stirring, we suggest you wait 2 minutes around till the bubbles broken and then continue the following steps. → The fluidity will increase with the stirring time under the condition of recommended water consumption. → grout mechanically or manually from one end of the sleeve to the other end and then seal the grouting hole and air outlet → After grouting, do not disturb the grouting site within 24 hours.

Dosage: Add water: 15%-17% 

Packing: 25kg/bag, moisture-proof package

Usage: 2300KG/m3 (theoretical value)

Storage: It can be stored for 6 months under the condition of dry sealed bag. If stored more than 6 months, better test the properties before use it.

Durability: Strength does not change significantly after 200 fatigue tests and 50 freeze-thaw cycles tests.


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