Polycarboxylate superplasticizer for concrete (slump retention type)pc-618
PC-618 is a functional powder polycarboxylate superplasticizer prepared by special spray drying process from modified polyether polymerization. It is a new generation of slow release concrete superplasticizer product with high plastic retention.
Product characteristics
(1) High retention plasticity: with excellent slump retention, significantly extend the construction operable time, reduce the time loss of concrete flow.
(2) High dispersion: has excellent dispersion ability, can quickly adsorb, reduce mixing time.
(3) High durability: enhance the compactness of the hardened slurry, improve shrinkage and creep performance, reduce cracks, and improve durability.
(4) Green environmental protection: no harmful substances, safe and environmental protection.
Field of application
PC-618 is suitable for a variety of Portland series cement concrete systems;
– All concrete systems;
– Concrete systems that need to maintain working performance for a long time;
Main technical index
| Test item | Technical index |
|---|---|
| Appearance | White powder |
| Moisture content, % | ≤5.0 |
| content, % | ≥95 |
| bulk density, (g/L) | 500~700 |
| PH value (10% aqueous solution, 20℃) | 6~8 |
| Chloride ion content, % | ≤0.1 |
| Water reduction rate, % | ≥25 |
| Gas content, % | ≤6.0 |
| Alkali content, % | ≤3.0 |
| Setting time difference,min (Final set) | ＞+90 |
Instructions for use
1.PC-618 should be used with water reducing agent;
2 When used, this product can be mixed with mixing water into concrete at the same time.
3.This product can also be added to the corresponding water to form the required solid content of the liquid, and then mixed into the concrete according to the amount of better effect.
4.The recommended dosage is 0.05-0.20% of the cementing material, which should be determined after trial mixing according to the concrete design requirements and actual raw material conditions.
Packaged storage
–25kg/ bag, woven bag/kraft paper packing. The storage period is 12 months from the date of production, if it exceeds the shelf life, it must be tested and verified before use.
–Store in a ventilated and dry place, pay attention to moisture-proof treatment, avoid direct sunlight, use in time after opening, need to seal in time to prevent moisture absorption deterioration.