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Large Volume Grouting Type Non Shrinkage Grouting Material

LARGE VOLUME GROUTING TYPE NON SHRINKAGE GROUTING MATERIAL CGM-T70 LARGE VOLUME GROUTING TYPE NON SHRINKAGE GROUTING MATERIAL is composed of cementitious material, selected aggregates, and additives which can enhance the performance of high fluidity, large expansion, anti-segregation. The......

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LARGE VOLUME GROUTING TYPE NON SHRINKAGE GROUTING MATERIAL
CGM-T70 LARGE VOLUME GROUTING TYPE NON SHRINKAGE GROUTING MATERIAL is composed of cementitious material, selected aggregates, and additives which can enhance the performance of high fluidity, large expansion, anti-segregation. The product has high strength, no shrinkage and "high" Expansion(Note: the “high"here is compared to the rest products, but still falls into the micro- expansion scope), high fluidity, good crack resistance, non-toxic, harmless, non-aging, no pollution to water and surrounding environment, good self-tightness, anti-rust and other characteristics. It can fundamentally change the force of the equipment base so that the foundation can evenly bear the full load of the equipment. It can meet the strict installation requirements of various machines and high-precision machine tools, especially for the major and heavy equipment. It is the best grouting material for the installation without the bolster.


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Item

Executive Standard / Product Specifications

JC/T986-(2005)2012
Cementitious grout

GB/T50448-2015
Technical code for application of cementitious grout

CGM-T70

Compressive strength

(Mpa)

1d

≥22

≥20

≥25

3d

≥40

≥40

≥45

28d

≥70

≥60

≥85

Liquidity
(mm)

Initial value

≥260

≥290

≥300

30min retention value

≥230

≥260

≥290

Vertical expansion rate

3h

-

0.1-3.5

1.2

Expansion value difference between 3h and 24h


0.02-0.5

0.15

1d

≥0.02

-

0.6

Limit expansion rate%
(Enterprise standard)

1d

-

-

0.01

3d

-

-

0.03

Rebar grip strength (round steel)/MPa

28d

≥4.0

-

≥4.3

Corrosive effect on steel bars

NO

NO

NO

Bleeding rate%

≤1

0

0


Scope of application:
Due to the product character of "high" expansion rate, it is suitable for secondary grouting of large-volume equipment bases, large-scale structural reinforcement of civil buildings, enlarged cross-section of beams and columns, etc.


Note:
1.The "high" here is compared to the rest products, but still falls into the micro- expansion scope
2."Large volume": one-time perfusion amount ≥1m3.

Dosage: Add water: 13%-15%

Packing: 25kg moisture-proof packaging

Usage amount: 2300KG/m3 (theoretical value)

Storage: It can be stored for 6 months under the condition of dry sealed bag. If store time is longer than 6 months, need test before use.

Durability: Strength did not change significantly after 200 fatigue tests, 50 freeze-thaw cycles test.

Storage: If stored in dry sealed bag and directly used under the condition of. If stored more than 6 months, can be used only after the test 

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


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