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Concrete Hiperplasticizers-Plastit® SPCA

Plastit SPCA 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 SPCA 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 SPCA 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 SPCA 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 0.2 to 1.0 kg/100 kg of cementitious material

Appearance Light Brown Liquid
Specific gravity <1.08 gr/cm3 at 20°C
Chloride Nil to BS5075 
Air entrainment Typically less than 2% additional air is entrained at normal dosages.
Alkali content اTypically less than 5 g. Na2o equivalent/litre of admixture. A fact sheet on this subject is available.

Packaging
 Plastit SPCA is available in 20 kg containers and 200 kg drums
 Storage
 Plastit SPCA 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