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Concrete Superplasticizers-Plastit SPNR

Plastit SPNR is a chloride free workability retention admixture based on selected polymer modified napthalene sulphonate dispersives. It is supplied as a brown solution which instantly disperses in water. Plastit SPNR disperses the fine particles in the concrete mix, enabling the water content of the concrete to perform more effectively. The increased workability, cohesion and retardation minimizes loss of workability.

 Good slump retention
Suitable for ready mix & hot weather concreting
  Makes possible major reductions in water:cement ratio which allow the production of high strength concrete without excessive cement contents 
 Increased work ability levels are maintained for longer than with ordinary subordinated melamine admixtures
 Improved cohesion and particle dispersion minimizes segregation and bleeding and improves pump ability 
 Chloride free, safe for use in prestressed and reinforced concrete

- Increases work ability without extra water, reducing placing time and costs.
 Gives increased working life to fresh concrete. - Improves cohesion, minimizing segregation and improving surface finish.
Aids pumping by improving cohesion and reducing workability loss.
Allows a reduction in water:cement ratio, enhancing durability by producing low permeability concrete with reduced shrinkage cracking potential.
 Chloride free, safe for use in prestressed and reinforced concrete. - Can be used with concrete containing micro silica and other cement replacements.

The optimum dosage Plastit SPNR 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 0.7 to 1.5 kg/100 kg of cementitious material, including PFA, GGBFS and micro silica

Appearance Brown Liquid
Specific gravity 1.18 gr/cm3 at 20°C
Chloride Nil to BS5075
Air entrainment Typically less than 2% additional air is entrained at normal dosages.

Packaging
Plastit SPNR is available in 20 kg containers and 240 kg drums.
 Storage
Plastit SPNR 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 -4°C