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Description
Product Description
PCA(I) concrete superplasticizer is a polycarboxylate polymer-based composite admixture. It is a liquid which has the performances of high range water reduction, excellent slump retention and strengthening. It is specially suitable to the production of high-durability concrete, self-compacting concrete, high-compressive-strength concrete, and high workability concrete. PCA (I) superplasticizer is formulated to comply with the following specification for concrete admixture: ASTM494, Type F; BS EN934: 2/3.2.3.
| Features and Benefits: |
| 1. High range water reduction: Tested according to ASTM494, the water reduction rate can be up to 35 at high dosage rates. 2. High compressive strengths: It can improve the compressive strengths of concrete by 60-100% at the age of 3 days, 60-90% at the age of 28 days and 30-50% at the age of 90 days. 3. High slump retention: Almost no slump loss of the concrete within 2 hours. 4. Excellent workability: No bleeding or segregation, no bleeding mark or obvious bubble defect on the concrete surface. 5. Low alkali content: alkali content is less than 1.8% 6. No chloride ions and non-corrosion to steel bar 7. High durability: It effectively improves the frost resistance and carbonation resistance of the concrete. It can decreases drying shrinkage of the concrete by 20% or more compared to naphthalene-based admixture. 8. Dosage: The addition rate of PCA ® (I) normally is 0.6~1.2% by weight of cementitious materials, and can be increased to 1.3~1.8% for ultra-high strength and durability concrete. |
| Usage : |
| Don't mix with naphthalene-based admixture. If other admixtures, such as retarding or corrosion-inhibiting admixture, are required simultaneously for some special projects, compatibility tests should be conducted beforehand. |
| Mixing PCA ® (I) is a liquid admixture to be added to the concrete during the mixing process. Optimum plasticizing effect and thus water reduction is achieved if PCA ® (I) is added immediately after 50 -80% of the water. Avoid adding PCA ® (I) to dry aggregate or cement. Compatibility PCA ® (I) can be used in combination with the following admixtures and additives 1. Air entraining admixtures to optimize freeze/thaw durability 2. Silica Fume for higher density 3. Shrinkage compensating admixtures 4. Synthetic and Steel Fibres 5. Concrete Improvers PCA ® (I) is not compatible with the traditional hyperplasticisers with a naphthalene sulphonate or melamine sulphonate base condensed with formaldehyde. |
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PCA(I) Concrete Superplasticizer
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