1. Scope of application:
Suitable for ready-mixed early-strength high-strength pumped concrete, commercial concrete, mass concrete, reinforced concrete, self-compacting concrete, especially suitable for summer construction.
2. Main performance:
1. This product is available in powder and liquid. The powder is brown; the liquid is brown-black (liquid density is 1.18±0.02g/ml). Non-toxic, odorless, non-flammable, and has no rusting effect on steel bars.
2. When the recommended dosage of this product is added to concrete, the water reduction rate is more than 20%, and it can significantly improve the workability, water retention, and pumpability of concrete, and can obtain a higher early stage strength.
3. This product has certain air-entraining properties (air content is 3±0.5%) and has good retarding performance. The condensation time can also be adjusted appropriately according to user requirements. The slump loss is small.
4. Using 525 ordinary Portland cement, C50-C80 commercial concrete can be prepared (fine mineral powder must be added); using 425 slag Portland cement, C30-C50 commercial concrete can be prepared. It is also effective for concrete mixed with a certain amount of finely ground fly ash.
3. Performance indicators of concrete mixed with ZWL-A retarding high-efficiency pumping agent:
Inspection items | Enterprise Logo | Inspection results | Inspection items | Corporate Logo | Inspection results | ||
Air content (%) | 3±0.5 | 2.5 | Slump increase (cm) | ≥10 | 14.2 | ||
Bleeding volume (%) | ≤ 100 | 76 | Rebar corrosion | None | None | ||
Slump increase (cm) | 30min | ≥12 | 15.8 | Compressive Strength Ratio | 3d | ≥85 | 118 |
60min | ≥10 | 15 | 7d | ≥85 | 120 | ||
Difference in setting time min | Initial setting | +235 | 28d | ≥85 | 116 | ||
Final setting | +240 | 90d | ≥85 | 110 | |||
Note: The powder detection dosage is 0.75% ( (Based on the amount of cement), the liquid testing dosage is 1800/100kg cement | |||||||
4. Recommended dosage:
According to use Purpose and requirements: The dosage range of powder is 0.4%-1.8%, and the recommended dosage is 0.75% (based on cement dosage); the dosage range of liquid is 1000-2000ml/100kg cement, and the recommended dosage is 1800ml/100kg cement. .
5. Usage method:
1. The dry powder can be directly mixed into concrete for use or used after preparing a solution of a certain concentration; the liquid can be added directly.
2. When used with expansion agent, the concrete mixing time should be extended by 30 seconds.
6. Packaging, transportation and storage:
1. Powder is packed in plastic woven bags lined with plastic bags. The net weight of each bag is 25kg±0.13kg or 50kg±0.25kg. Liquids are packed in plastic barrels. Packaging and plastic buckets must be sealed to prevent water leakage or evaporation and drying. Tank trucks can also be used for transportation.
2. Be careful not to encounter sharp objects during transportation to avoid breaking the package and getting damp. If it gets damp, prepare a solution of a certain concentration for use.
3. Powder should be stored in a ventilated and dry special warehouse. The validity period is two years. It can still be used after passing the validity period and passing the test.
+235
28d
≥85
116
Final setting
+240
90d
≥85
110
Note: The powder detection dosage is 0.75% (Based on the cement dosage), the liquid testing dosage is 1800/100kg cement
4. Recommended dosage:
According to Purpose and requirements of use, the dosage range of powder is 0.4%-1.8%, and the recommended dosage is 0.75% (based on cement dosage); the dosage range of liquid is 1000-2000ml/100kg cement, and the recommended dosage is 1800ml/100kg cement.
5. Usage method:
1. The dry powder can be directly mixed into concrete for use or used after preparing a solution of a certain concentration; the liquid can be added directly.
2. When used with expansion agent, the concrete mixing time should be extended by 30 seconds.
6. Packaging, transportation and storage:
1. Powder is packed in plastic woven bags lined with plastic bags. The net weight of each bag is 25kg±0.13kg or 50kg±0.25kg. Liquids are packed in plastic barrels. Packaging and plastic buckets must be sealed to prevent water leakage or evaporation and drying. Tank trucks can also be used for transportation.
2. Be careful not to encounter sharp objects during transportation to avoid breaking the package and getting damp. If it gets damp, prepare a solution of a certain concentration for use.
3. Powder should be stored in a ventilated and dry special warehouse. The validity period is two years. It can still be used after passing the validity period and passing the test. </p
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