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Naphthalene based high early strength concrete admixture additive
1.Early strength superplasticizer
2.Save cement
3.Low cost
Naphthalene based high early strength concrete admixture additive
High early strength concrete admixture additive are powder, non-toxic, non-flammable,
non-chlorine salt,and no corrosion on steel.
Recommended dosage (in plastic timber weight) is 0.8 to 2.0%.
The Technical performance of concrete admixture additive as follows:
Test item | GB8076-1997 index | HSN results (content 1.2%) | ||
First grade | Qualified | |||
Water reduction rate,% | ≥ 8 | ≥ 5 | 12 | |
Bleeding rate,% | ≤ 95 | ≤ 100 | 75 | |
Setting time difference | min initial setting | -90 ~ +90 | -90 to +90 | -50 |
Final setting | 90 ~ +90 | -90 ~ +90 | +30 | |
Compressive strength ratio,% | 1d | ≥ 140 | ≥ 130 | 210 |
3d | ≥ 130 | ≥ 120 | 175 | |
7d | ≥ 115 | ≥ 110 | 142 | |
28d | ≥ 105 | ≥ 100 | 125 | |
28d shrinkage ratio,% | ≤ 135 | 124 | ||
Effect on steel corrosion | Should indicate whether corrode on steel | Non | ||
Use:
1.Powder can be added directly with the cement, sand, gravel together in the blender,First dry mix, then wet mix with water, stirring the same time with ordinary concrete.
2.Recommended dosage (in plastic timber weight) : 0.8 to 2.0%.
3.When small quantities of concrete artificial stirring, the powder should be added to the mixing water after water applied (after the dissolution of the goods "carrier" materials precipitation is normal)
98.5%Sodium gluconate concrete admixtures,
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