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SUMMARY
1、 CG910S product has the dual-effects of reducing fluid loss and accelerating coagulation at low temperature. It effectively shortens the thickening time at low temperature while maintaining good fluid loss reduction performance.
2、 Transition time of thickening performance and setting performance are short.
3、 Promote the early strength development of setting cement at low temperature.
4、 Suitable for normal density, low density and high density cement slurry systems.
5、 Compatible well with other additives.
6、 Only suitable for water mixed use.
7、 The product dosage range is 1.2-2.5% (BWOC).
PHYSICAL
AND CHEMICAL INDICATORS
|
Type |
Appearance |
Bulk Density, g/cm3 |
Water-Solubility |
0.315mm Residues, % |
|
CG910S |
White or faint yellow powder |
0.90±0.10 |
Soluble |
<15 |
CEMENT SLURRY PERFORMANCE
|
Item |
Test Condition |
Technical Indicator |
|
|
Density of normal density cement slurry (g/cm3) |
25℃, Atmospheric Pressure |
1.90±0.01 |
|
|
Fluid loss, ml |
Fresh water system |
40℃, 6.9MPa |
≤50 |
|
Thickening performance |
Initial consistency (Bc) |
40℃/28min, 24MPa |
≤30 |
|
40-100 Bc thickening time, min |
≤20 |
||
|
Ratio of thickening time |
≤0.6 |
||
|
Free fluid (%) |
40℃, Atmospheric Pressure |
≤1.4 |
|
|
Compressive strength for 8h, MPa |
≥5 |
||
|
Compressive strength for 24h, MPa |
≥14 |
||
|
Note: The ratio of thickening time refers to the ratio of thickening time of cement slurry with CG910S to the thickening time of pure cement slurry without any fluid loss additive. |
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STANDARD PACKAGING AND STORAGE
1、 Product shelf life is 12 months. Packed in 25kg bags, or according to customer requirements.