Product Introduction
SPF-300 is environment friendly polycarboxylate superplasticizer that developed by the company. The advantage of that product is not only for high water reducing rate but also for HIGH excellent slump retaining performance. It can improve the fluidity of the concrete. The product is widely applied in common concrete, pump concrete, high strength concrete, high performance concrete,especially applied in self compacting concrete.
Technical Principle
The main molecular chain of the product was absorbed in the surface of cement particle firmly,that will impede hydration reaction and improve slump-retaining performance. Side molecular chain was around the cement particle, so it is functional to steric hindrance and electrostatic repulsion that’s why that product have better dispersity and water reducing effort. Base on that, the product has the effort about releasing carboxylic groups with dispersing to alkali cement, furthermore,this product can offer better and longer dispersing effort.
Application
1.Applied in ready mix concrete and on site concrete of industrial building,civil building.
2. Specially suitable for high strength concrete, high durability concrete, self-compacting concrete and so on.
Recommend Dosage
1.The recommend dosage is 0.35% to 0.65%, the dosage could be adjusted according to the special aggregates.
2. The mix time at least 150s.
3. This product could combine with retarders,defoamer,air entraining admixtue, sodium lignin sulfonate during usage.
4.This product is concentrated product, we suggest to compound before usage.
Technical Index
|
Items |
Unit |
Specification |
|
Appearance |
/ |
White to canary liquid |
|
Density |
g/cm3 |
1.10+-0.01 |
|
PH Value |
% |
6.0-8.0 |
|
Solid Content |
% |
40.5+-1.0 |
|
Chloride Content |
% |
≤0.1 |
|
Na2So4 |
% |
≤5 |
|
Cement paste fluidity |
mm |
≥240 |
Physical-mechanical properties
|
Test Items |
Corporation Specification |
Test result |
|
|
Water Reducing Rate(%) |
≥30 |
33 |
|
|
Ratio of bleeding rate at normal pressure(%) |
≤60 |
0 |
|
|
Air Content(%) |
≤6.0 |
3.5 |
|
|
Slump retain value(60min) |
≥180 |
220 |
|
|
Slump retain value(120min) |
≥150 |
190 |
|
|
Shrinkage ratio %(28d) |
≤110 |
101 |
|
|
Corrosive to reinforcement bar |
/ |
No |
|
|
Ratio of Compressive Strength(%) |
1d |
≥170 |
205 |
|
|
3d |
≥160 |
195 |
|
|
7d |
≥150 |
170 |
|
|
28d |
≥140 |
165 |
Package & Storage
1. 200KG plastic drum or 1000kg IBC tank.
2.Avoid to the sunshine,store under the temperature of -5℃ to -35℃.
3.The shelf-life is normally 12 months under the required temperature.
Handling Notes
SPF-300 is free from alkaline. It’s not toxic,hazardous, and corrosive.
When it contacts to eyes and skin, the affected area shall be immediately rinsed with plenty of water for minutes.
