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REPAIR TYPE NON SHRINKAGE GROUTING MATERIAL
CGM-T80 REPAIR TYPE NON SHRINKAGE GROUTING MATERIAL uses special cement, selected aggregates and additives with novel high fluidity, micro-expansion, anti-segregation to formulate. The product has characters of early strength, high strength, no shrinkage, micro-expansion, self-flow, vibration-free, non-toxic, harmless, non-aging, no pollution to water and surrounding environment, good self-tightness, anti-rust and so on.
Item |
Executive Standard / Product Specifications |
||||
JC/T986-(2005)2012 |
GB/T50448-2015 |
CGM-T80B |
|||
Compressive strength |
1d |
≥22 |
≥20 |
2h |
≥30 |
3d |
≥40 |
≥40 |
24h |
≥50 |
|
28d |
≥70 |
≥60 |
≥75 |
||
Flexural strength(Enterprise standard) |
2h |
ï¼ |
ï¼ |
≥5 |
|
24h |
ï¼ |
ï¼ |
≥8 |
||
28d |
ï¼ |
ï¼ |
≥12 |
||
Liquidity(mm) |
Initial  value |
≥260 |
≥290 |
≥300 |
|
30min retention value |
≥230 |
≥260 |
≥270 |
||
Vertical expansion rateï¼… |
3h |
ï¼ |
0.1-3.5 |
0.5 |
|
Expansion value difference between 3h and 24h |
ï¼ |
0.02-0.5 |
0.1 |
||
1d |
≥0.02 |
ï¼ |
0.6 |
||
Reinforcement grip strength (round steel)/MPa |
28d |
≥4.0 |
ï¼ |
≥4.2 |
|
Bonding strength with old concrete Strong / MPa(Enterprise standard) |
28d |
ï¼ |
ï¼ |
≥4.2 |
|
Corrosive effect on steel bars |
NO |
NO |
NO |
||
Bleeding rateï¼… |
≤1 |
0 |
0 |
||
Scope of application:
Due to its novel early high strength performance, it is suitable for urgent repair, like highway expansion joints and traffic repair required open within 2 hours. When it is used in civil building reinforcement, the reinforced area can reach the required strength within 2 hours.
(Note: This product can be use at low temperature and the strength is not affected. Construction can be carried out in winter when the temperature is higher than -10 °C.)
Dosage, storage, durability is same with CGM-T80A.
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