HUAXUAN HIGH TECHNOLOGY® KH-204

  is a third generation superplasticizer for high performance concrete. It was particularly formulated for the production of precast tunnel segments, targeting the high demands regarding slump retention, very low water/binder ratios, use of double or triple blend mixes (cement, GGBFS, PFA and/or microsilica) and high degree of compaction. Owing to its low dosage, high water reducing rate (>40%), significant positive effects on the workability, mechanical and durability properties of concrete.
  HUAXUAN HIGH TECHNOLOGY® KH-204 works as a powerful superplasticizer acts by different mechanisms. Through surface adsorption and steric hinderance effects separating the binder particles which results in higher dispersion allows the possibility to work with very low water/binder ratios by avoiding the high stickiness common to such kinds of mix. 

  The following properties are achieved:

• Easier to control during casting due to sufficient retention period and high early strength development.
• Extremely high water reduction (resulting in high density and strengths) even in double or triple blend mixes (e.g. cement, GGBS, and silica fume)
• Low w/b ratio leads to very low water permeability, and chloride migration.