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AX AdmixorConcrete Admixtures Manufacturer
Polycarboxylate Superplasticizers

Slump-Retaining Polycarboxylate SuperplasticizerBest seller

Slow-release molecular design extends the dispersion effect, solving slump loss over long hauls and in high ambient temperatures.

Overview

Slump-retaining grades incorporate ester side chains that hydrolyse slowly in the alkaline pore solution, progressively releasing fresh dispersing groups to replace those consumed by cement hydration — which extends slump retention.

Key benefits

  • Minimal 1–2 hour slump loss, ideal for long hauls and congested urban traffic
  • Retention/reduction ratio adjustable to ambient temperature in hot seasons
  • Compatible with fly ash and slag systems without aggravating bleeding
  • Suitable for strength classes C30–C60

Application notes

Blend with the high-range mother liquor at a ratio of roughly 3:7 to 6:4, depending on transit time and temperature. In summer, combine with a retarder to further extend workability.

Typical uses

Long-distance ready-mix delivery, hot-weather concreting, continuous mass pours.

Technical specification

AppearanceColourless to pale yellow liquid
Solid content50% ± 1%
Water reduction≥ 30%
Slump retention (1 h)loss ≤ 20 mm
Slump retention (2 h)loss ≤ 40 mm
pH value6.0 – 8.0
Chloride content≤ 0.01%
Setting time difference-60 to +120 min, adjustable

Standards

ASTM C494 Type GEN 934-2GB/T 8076

Applications

  • Ready-mix concrete
  • Hot weather concreting
  • Long-distance transport
  • Mass concrete

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