Sika

Last updated February 10, 2026

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Sulphurite hardening accelerator additives: SikaRecent Research Landscape

Slow hydration kinetics in geopolymer binders delay structural setting and increase mold-turnover costs. Engineering the particle size and surface area of calcium hydroxide additives triggers rapid mineral phase precipitation to accelerate hardening.

What technical problems is Sika addressing in Sulphurite hardening accelerator additives?

Slow low temperature hydration

(27)evidences

Inconsistent setting times and early-stage strength development in geopolymer and cementitious systems. Precise control over hardening rates prevents structural instability and construction delays.

Unpredictable slag volume expansion

(8)evidences

Inherent chemical inertness of ground slag prevents rapid strength development in binder systems. Overcoming this kinetic limitation allows for the replacement of carbon-intensive Portland cement.