Tips, insights, and news from the concrete technology market

COMPLEX K-5 is a universal admixture – plasticizer and accelerator with antifreeze effect. It ensures accelerated hardening of the concrete mix without interruptions, even at sub-zero ambient temperatures.

The effective combination of active components in this product provides advantages for both:

• Reinforced concrete products and structures – faster demolding and early release strength;
• Ready-mix concrete – maintaining workability during long transportation and protecting concrete during hardening at negative temperatures.

Key performance figures:

• Increases concrete mix workability from P1 to P4.
• Increases concrete strength up to 10% at 1 day, and up to 5% at 28 days, as defined by DSTU B.V.2.7-171:2008 (EN 934-2:2001, NEQ).
• Enables concreting at temperatures down to -10 °C under direct freezing exposure, and down to -12 °C with preheated aggregates, with mandatory curing after placement.

Ready to start building? Call us – we’ll consult you and help select the optimal dosage of admixture for your specific situation and any construction conditions.

COMPLEX K-10 is a plasticizer with antifreeze effect that regulates the retention of cement mortar plasticity across a wide temperature range. Work with cement mortar is possible at ambient temperatures down to -10 °C, and with the use of hot water for preparation – down to -12 °C.

COMPLEX K-10 does not require additional dissolution measures and is used in concentrated form in the amount of 2.0…4.0% of cement mass (dry substance) depending on ambient temperature, while maintaining the same compressive strength indicators.

Dosage rates that truly impress:

With hot mixing water (+45…+60 °C)

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To extend the retention of initial workability of concrete and mortar mixes during long transportation (up to 4 hours) and for cost-efficient production of all types of concrete, we offer KOMPLEKS K-11.

A key distinction of this additive from other retarders is that, while ensuring prolonged workability (2–4 hours), it also provides dynamic setting kinetics of concrete, achieving high early-age and 28-day strength. This allows for significant cement savings and the production of low-cost concrete.

The KOMPLEKS K-11 additive can be introduced into concrete mixes either in liquid form together with mixing water or separately.

The dosage range is 0.5–2% of cement weight (by liquid), depending on ambient temperature, working conditions, and concrete composition.