Naphthalene anti-freezing admixture JF-15
Category
Naphthalene series
Detail
Applications
JF-15 is suitable for winter construction of all kinds of concrete at the average temperature of -5 ℃ -15 ℃.
Slump loss of JF-15 is small.
JF-15 has better applicability for all kinds of cement and composite material.
JF-15 is chloride – free, low alkali and hazardous substance.
JF-15 hasn’t corrosion for reinforcement metal.
JF-15 belongs to green production.
Properties
Dosage: 2.5~4.5% at temperatures not lower than -15 ℃.
Mixing water should be required to heat.
Pumping's temperature of concrete should be higher than 5 ℃ and use comprehensive thermal storage method.
Uniformity
|
Item |
Results |
Item |
Results |
|
|
Appearance |
Power |
grey powder |
pH Value |
7-9 |
|
liquid |
tan liquid |
Cement paste fluidity(mm) |
≥160 |
|
|
Liquid density (20℃) |
1.18±0.02 g/ml |
Liquid solid content |
30±2% |
|
Concrete performance with 3.5% dosage by binder mass
|
Test item |
Quality index, I
|
Results |
|
|
Water reducing rate (%), ≥ |
10 |
18 |
|
|
Ratio of bleeding rate (%), ≤ |
80 |
0 |
|
|
Air content (%), ≤ |
2.5 |
3.3 |
|
|
Difference in setting time（min） |
Initial setting |
-150～+150 |
-25 |
|
Final setting |
-20 |
||
|
Ratio of compressive strength (%), ≥ |
-7d |
12 |
15 |
|
28d |
100 |
127 |
|
|
-7d+28d |
90 |
99 |
|
|
-7d+56d |
100 |
111 |
|
|
28d Ratio of shrinkage（%）, ≤ |
135 |
119 |
|
|
Permeated height rate (%), ≤ |
100 |
80 |
|
|
Loss rate of frozen-thaw strength (50 times) (%), ≤ |
100 |
41 |
|
|
Ammonia burst size (%), ≤ |
0.10 |
0.01 |
|
|
Reinforcement corrosion hazard |
Explanation of Reinforcement corrosion hazard must be done |
None |
|
Remark: set point of temperature is -10℃(serviceability temperature is -15℃)
Conclusion: the project is in line with acceptable end product index in JC475-2004.
Packaging, transport and storage
Powder JF-15 is available in 25kg film-lined bags.Liquid JF-15 is available in sealed plastic or iron tank. Other special package can also be available according to prior consultation.
Special measures should be taken to ensure entire package. Keep waterproof during transportation.
Dry and well ventilated warehouse is needed for storage. Quality guarantee of JF-15 is two year under normal conditions. If storage has surpassed the time, test must be done to confirm the validity.
Keyword
©Luke Chemicals