This product ( G211 ) plays down the impact of the density on the grout and cement performance. This technology is based on the theoretical basis of choice of optimum ratio and the mixture with a suitable specific gravity and with different particle size distribution. Composed of cement, beads, ultra-fine silica fume, slag, fly ash, micro silica, silicon straw, fine cement, silica fume, etc., plus series admixtures ( retarder, dispersants, fluid loss agent ).
It has a high compressive strength at low density.
It has a low porosity and permeability.
It can improve sedimentation stability, reduce water loss, and reduce the free water.
It has a good perforation performance.
When slurry density fluctuations, its performance is essentially the same, or even a small change.
| Physical properties | Appearance | Gray powder |
| Density | 2.80 ± 0.20 | |
| Specific surface, m²/kg | ≥ 480.0 | |
| Slurry properties | Slurry density, g/cm³ | 1.50 ± 0.02 |
| Initial consistency, Bc ( 70℃, 30MPa ) | ≤ 30.0 | |
| Thickening time, min ( 70℃, 30MPa ) | ≥ 80.0 | |
| Compressive strength, MPa ( 70℃, 20.7MPa, 24h ) | ≥ 20.0 |
Be sacked with three three-layer plastics bag, 25kg per bag.
Be kept away from moisture and damaged condition of package during transportation, stored in cool and dry place.
Storage life time is two years.
