PCE concrete super plasticizer admixture used in construction engineering
The technical performance of PCE concrete super plasticizer admixture as follows:
Technical Parameters |
Test items | Performance indicators | Test results |
Formaldehyde content,% | ≤0.05 | 0.003 |
Cement paste fluidity,% | ≥240 | 273 |
Sodium content,% | ≤5.0 | 1.1 |
Chloride ion content,% | ≤0.2 | 0.13 |
Alkali content(Na2O+0.658 K2O),% | ≥5.0 | 1.8 |
Gas content,% | Concrete used for the preparation of non-frost | ≥3.0 | 4.5 |
Concrete used for the preparation of antifreeze | ≥4.5 |
Slump retention, mm | 30min | ≥180 | 195 |
| 60min | ≥150 | 175 |
Water reduction ratio,% | ≥20 | 25 |
Atmospheric bleeding rate ratio,% | ≤20 | 0 |
Pressure bleeding rate ratio,% | ≤90 | 45 |
Compressive strength ratio,% | 3d | ≥130 | 172 |
7d | ≥125 | 166 |
28d | ≥120 | 153 |
Steel corrosion effect | No rust | No rust |
Shrinkage ratio,% | ≤135 | 97 |
Relative durability index,% 200 | ≥80 | 85 |
Notes:1.Calculation of above products are converted into solid content 20%, dosage 1% of the gelled material.
2.Index basis: Temporary technical condition of passenger dedicated line of high performance concrete.
Sulphamate water reducing agent,
Industrial grade chemicals concrete special sodium gluconate,
Aliphatic concrete water reducer for construction,and other products.
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