Summary
l DOC-R21L is a medium-high temperature retarder of organic phosphonic acid and sodium gluconate, and equivalent to SR 34L.
l DOC-R21L can effectively prolong the thickening time of cement slurry with strong regularity.
l DOC-R21L is suitable for fresh water, brine and seawater blending.
Physical and chemical performance
Item | Index |
Appearance | Yellow brown liquid |
Density, g/cm3 | 1.05±0.05 |
Cement slurry performance
Item | Test Condition | Index | |
Thickening property | 40–100 Bc transition time | 80℃/45min,46.5MPa | ≤40 |
Tunability of thickening time | Adjustable | ||
Thickening linearity | Normal | ||
"G" cement 800g, 8g FLA DOC-610S , 3g Retarder DOC-R21L , 344g freshwater , 4g Defoamer DOC-D15L. | |||
Application Scope
Temperature: 30℃-150℃(BHCT).
Dosage: 0.1%-2.0%(BWOC).
Packaging
25L or 200L plastic drums package, or according to customer requirements.
