Slump-Retention Type Polycarboxylate Superplasticizer

Slump-retention Type Polycarboxylate Superplasticizer

ACC Polycarboxylate Superplasticizer—JST4

JST4 is a type of mud-resistant and slow-release polycarboxylate superplasticizer synthesized through a high polymer structure design. Under the condition of high mud content, the superplasticizer can effectively improve the working performance of concrete, and restrain the influence of mud content in sand on the working performance of concrete as well. Mixed with commonly used polycarboxylate superplasticizer types (polyester, polyether) through different proportions, it can prepare concrete without collapse for 2 hours, 3 hours, or longer. It can effectively improve the cohesion and working performance of concrete.

Request a Quote Technical Datasheet


Solid Content40.0 ± 1 %
PH6 ± 2
Bulk Density1.080 ± 0.02 g/cm3 (25℃)


  • Light brown or colorless liquid.
  • Has good stability and no precipitation at low temperature.
  • Green environmental protection, non-toxic and harmless, conducive to the preparation of green concrete.
  • Improve the adaptability of polycarb to cement, Fly Ash and GGBFS.
  • Improve the adaptability of polycarb to sand and mud content.
  • Improve the adaptability of polycarb to temperature and climate.


  • The recommended dosage is 20-60% when mix with conventional polycarb.
  • Before use, it is necessary to test the mixing proportion of concrete, and determine the best mixing amount according to the construction requirements, in order to obtain the best technical, economic benefits.
  • The product can not be mixed with Sodium Naphthalene Formaldehyde and amino admixture, so as not to affect the performance.


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