L Shrinkage-free High Strength Grouting Material LGM
Category:
Detail
LCM shrinkage-free high performance grouting material is a hi-tech powder product composed of high strength cement, expansion component, super plasticizing component and modified component. It is the ideal material for installing large imported precision equipment and instruments, pouring anchor bolts and machine base or joining of steel structure with foundation. LGM reacts with water to produce a large amount of expandable crystalline minerals to make itself shrinkage free. LGM has good fluidity and high strength. LGM has been widely used in the industries of power, machinery, metallurgy, chemical, petroleum and construction.
Major Technical Features
items |
standard indexes |
LGM performance indexes |
|
min |
≥120 |
230 |
|
Bleeding rate, % |
≤1.0 |
0.4 |
|
mm |
Initial value |
≥260 |
270 |
30 min retention value |
≥230 |
250 |
|
Compressive strength, MPa |
1d |
≥22.0 |
23.0 |
3d |
≥40.0 |
50.0 |
|
28d |
≥70.0 |
76.5 |
|
Vertical expansion rate, % |
1d |
≥0.020 |
0.025 |
Concrete iron bonding strength, MPa |
28d |
≥4.0 |
6.5 |
Erosion to concrete iron |
No |
No |
Methods off use
Major Applications
Packaing and storage
LGM is packaged with plastic woven back, each weighing 50kg±1kg. Under dry condition, the shelf life is 12 months.
Shrinkage
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