| Grade: | M25 |
|---|---|
| Type: | Cement Mortar |
| Usage: | Plastering Mortar |
| Brand Name: | polar bear |
| Place of Origin: | China (Mainland) |
| Name: | thin-layer leveling mortar |
| apperance: | powder |
| color: | grey |
| characteristic: | high early strength, fast set, apply to urgent repair construction |
| cement raw material: | white anti-crack double fast high belite cement 32.5 |
| 4hour compressive strength: | 12.5mpa |
| bonding strength: | 1.8-1.9mpa |
| thickness: | 3-5mm |
| consumption: | 1.7-1.8kg/m2.mm |
| how long can man walk on it?: | 1 hour |
Quick Details
Specifications
This is a kind of cement mortar achieved by adding water into a mixture which taking white crack resistance fast setting rapid hardening high belite sulphate aluminum cement as base material, adding accurately premixed dry-mixed material with many kinds of additives such as high-molecular polymer, water reducing agent, set-controlling admixture and defoaming agent and reasonable gradation of dry sand. It can flow for leveling after mixing with water and slight auxiliary spreading. It has rapid hardening and anti-cracking properties and can be applied to concrete surface thin-layer leveling.
Technical index and measured data
|
Items |
standard index |
Actual result |
|
|
fluidity( mm) |
Inintal |
≥280 |
295 |
|
30 min |
≥250 |
290 |
|
|
Compressive strength, Mpa |
4h ≥ |
15.0 |
28.3 |
|
1d ≥ |
35.0 |
43.6 |
|
|
28d ≥ |
45.0 |
48.7 |
|
|
Flexture strength, Mpa |
4h ≥ |
4.0 |
6.8 |
|
1d ≥ |
6.5 |
7.8 |
|
|
28d ≥ |
7.5 |
8.1 |
|
|
Bond strength, Mpa, 28d ≥ |
1.6 |
1.8 |
|
|
Size change ratio, 28d, %, |
-0.08%~＋0.08% |
-0.009%~＋0.016% |
|
|
Water to materials ratio :W/P |
0.13 |
0.13 |
|
Performance characteristics
Has low dimensional change rate, which controls generation of cracks fundamentally;
Has higher tensile bonding strength;
The mortar is dense, which has good functions of anti-permeability and frost resistance;
Early strength and high strength;
Has the higher liquidity;
Has very high late strength
Product use
Used for making the crack resistance leveling layer with the thickness being ≤40mm on concrete surface.