Specifications
1.Water reduction:12% min
2.No chlorine salt
3.Used for portland cement
4.Super plasticizer for gypsum
5.No corrosion
Product Descriptio
Composite anti-freezing super plasticizer for gypsum without strong alkaline substances
Composite anti-freezing super plasticizer for gypsum is an efficient concrete admixture.
Technical indicators:
• Uniformity index
Project | Powder | Liquid |
Appearance | Gray powder | Dark brown |
Solid content,% | ≥95% | ≥40% |
PH value | 7~9 | 7~9 |
Chloride ion content | Non | Non |
Fineness, 0.315 standard sieve residue,% | ≤11.5 | — |
Cement paste fluidity,mm | ≥180 | ≥180 |
• Concrete mixing concrete composite antifreeze HSD superplasticizer
Test items | JC475-2004 targets (-15 °C) First grade | index results (Content 5.0%) | ||
Water reduction rate,% | ≥10 | 15 | ||
Bleeding rate,% | ≤80 | 55 | ||
Gas content,% | ≥2.5 | 3.0 | ||
Setting time difference,min | initial setting | -150~+150 | -35 | |
Final setting | -50 | |||
Compressive strength ratio,% | standard curing | R28 | ≥95 | 122 |
Regulations negative temperature-15°C | R-7 | ≥10 | 15 | |
R-7+28 | ≥58 | 102 | ||
R-7+56 | ≥100 | 111 | ||
Effect on steel corrosion | should indicate whether have corrosion on concrete iron | Non | ||
Usage:
• Positive temperature lower dosage used for early strength agent is: 2 to 3%.
• Negative temperature lower dosage: -5 °C doped 3 ~ 4%; -10 °C doped 4 ~ 5%; -15 °C doped 5-7%.
• It can be used directly to joint investment and aggregate, mixing time required to extend 2 ~ 3min.
• Every shipment must try experiments with cells, can be used.
Advantages
• The product have powder and liquid two forms.
• This product does not contain chlorine salt, no corrosion on steel, for a variety of reinforced concrete works.
• This product does not contain strong alkaline substances such as K2CO3, haven’t alkaline corrosive to human body, non-accelerating phenomenon and does not affect the operating time of
construction.
• The water-reducing rate is greater than 12% and wide used for portland cement .
• It can be used for concrete work or mortar construction projects on condition of daily minimum temperatures under -20 °C.
