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Concrete Hiperplasticizers-Plastit® SPCA218

Plastit SPCA218 is differentiated from conventional superplasticisers in that it is based on a unique carboxylic ether polymer with long lateral chains. This greatly improves cement dispersion. At the start of the mixing process electrocstatic dispersion occurs but the presence of the lateral chains, linked to the polymer backbone. Generate a steric hindrance which stabilizes the cement particle’s capacity to separate and disperse. This mechanism considerably reduces the water demand in flowable concrete. Plastit SPCA218 is a particularly strong hyperplasticiser allowing production of consistent concrete properties around the required dosage

Increased early compressive strengths
 Increased flexural strength
 Improved adhesion to reinforcing and stressing steel
 Improved resistance to carbonation
Lower permeability
Increased resistance to aggressive atmospheric conditions
 Reduced shrinkage and creep - Increased durability

Plastit SPCA218 is a high performance hyperplasticiser intended for applications where increased early compressive strengths are required, and it has been developed for use in
 Self compacting concrete
Concreting in cold weather
 Pumped concrete
 High performance concrete
Per-cast concrete

The optimum dosage Plastit SPCA218 to meet specific requirements should always be determined by trials using the materials and conditions that will be experienced in use. The normal dosage range is between 0.5 to 1.5 kg/100 kg of cementitious material

Appearance Light Brown Liquid
Specific gravity 1.05 gr/cm3 at 20°Cد
Chloride  Nil to BS5075
Air entrainment   Typically less than 2% additional air is entrained at normal dosages
 Alkali content  Typically less than 7 g. Na2o equivalent/litre of admixture. A fact sheet on this subject is available

Packaging
Plastit SPCA218 is available in 20 kg containers and 200 kg drums
 Storage
Plastit SPCA218 has a minimum shelf life of 12 months provided the temperature is kept within the range of 5°C to 35°C. Should the temperature of the product fall outside this range then contact CAPCO for advice. Freezing point: Approximately -2°C