FC-R31S Polymer high-temperature retarder
• FC-R31S is a type of polymer high-temperature retarder.
• FC-R31S can effectively extend the thickening time of cement slurry, with strong regularity, and has no impact on other properties of cement slurry.
• FC-R31S develops rapidly on the strength of set cement, and does not exceed the retarding of the top of isolation interval.
• FC-R31S is applicable to slurry preparation of fresh water, salt water and sea water.
FC-R31S decreases the rate of cement hydration, acting in a manner opposite to that of accelerators. They are used at High Temperatures to allow time for mixing and placement of the Cement Slurry.
| Product | Group | Component | Range |
| FC-R31S | Retarder HT | AMPS polymer | 93℃-230℃ |
|
Item |
Index |
|
Appearance |
White or yellowish solid |
|
Item |
Test condition |
Index |
|
|
Thickening performance |
Initial consistency, (Bc) |
150℃/73min, 94.4MPa |
≤31 |
|
40-100Bc transition time |
≤40 |
||
|
Adjustability of thickening time |
Adjustable |
||
|
Thickening linearity |
≤10 |
||
|
Free liquid (%) |
150℃/73min, 94.4MPa |
≤1.4 |
|
|
24h compressive strength (MPa) |
150℃, 20.7MPa |
≥14 |
|
|
Grade G cement 600g; Silicon powder 210g; Fresh water 319g; FC-610S 12g; FC-R31S 4.5g; Defoamer FC-D15L 2g |
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Retarders are used to counteract the accelerated effect of high temperatures on establishing the properties of concrete in hot climates. Retarders are a mixture that slows down the chemical process of hydration so that the concrete remains pliable and usable for a long time. Retarder can successfully extend the period that cement slurry thickens in order to guarantee a successful cementing procedure. The FC-R20L, FC-R30S, and FC-R31S series are available from Foring Chemicals for use in various applications.
