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Concrete Admixtures · Accelerators

SikaRapid®-1

Liquid Hardening Accelerator for Concrete & Mortar

Sika TDS Reference
Catalogue reference Listed for technical reference. Not currently stocked — ask us for the nearest available alternative.
Brand
Sika
Packing
Drums / cans (refer to current packaging / price list)
  • High Early Strength Substantially increased early strength in the first 24 hours.
  • No Final-Strength Loss Does not negatively influence final strengths.
  • Chloride Free Suitable for reinforced concrete.
  • Superplasticiser Compatible Does not change the fresh properties from a superplasticiser.
  • Cold-Weather Aid Helps early strength development in cool conditions.

Prices are quoted per project — no prices are shown online.

  • Sika products supplierIslamabad & Rawalpindi.
  • Get a quote on WhatsAppSend your product and quantity for current pricing.
  • Technical support from MCTOur team helps you choose the right solution.
  • DeliveryContact our team to confirm delivery and lead times to your location.

Key benefits

  • High Early Strength
  • No Final-Strength Loss
  • Chloride Free
  • Superplasticiser Compatible
  • Cold-Weather Aid

SikaRapid®-1 — Liquid Hardening Accelerator for Concrete & Mortar

SikaRapid®-1 is a liquid hardening accelerator for concrete and mortar that meets the requirements for hardening accelerators to EN 934-2. It promotes early strength development without negatively affecting final strengths - depending on dosage, early strength in the first 24 hours can be increased substantially. It does not contain chlorides or other steel-corrosion-promoting ingredients and is suitable for reinforced concrete. When used with a superplasticiser it does not change the fresh concrete properties produced by that superplasticiser.

Recommended uses

  • Fast early-strength concrete (6-24 hours critical)
  • Precast concrete with rapid stripping
  • Cold-weather concreting
  • Early load or formwork removal

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Technical information

Technical information

Verified performance data for SikaRapid®-1, taken directly from the Sika Pakistan Product Data Sheet.

SikaRapid®-1 — technical data
Chemical BaseMixture of organic and inorganic complex agents
PackagingDrum IBC Bulk supply
Shelf Life12 months shelf life from date of production if stored properly in undamaged, unopened, original sealed packaging
Storage ConditionsStorage at temperatures between 5 °C and 30 °C. Protect from direct sunlight, frost and contamination
Appearance / ColourRed liquid
Density~1.17 kg/l (at +23°C) Conventional Dry Material Content 35.0 M.-%
Viscosity< 10 mPa s at +23°C
pH Value~9.0
Total Chloride Ion Content< 0.01 M-% (chloride-free) Equivalent Sodium Oxide < 10.0 M-%

Source: Sika Pakistan product page, SikaRapid®-1 (pak.sika.com). Complies with EN 934-2. Full numerical specifications: request the latest Sika Pakistan PDS.

Packaging & storage

Packaging & storage

Packaging

Drums / cans (refer to current packaging / price list)

Storage

Store in undamaged, unopened, original sealed packaging in dry conditions between +5 C and +30 C. Protect from direct sunlight, frost and contamination.

Shelf life

12 months from date of production (correctly stored).

Application guide

Application guide (5 easy steps)

  1. Determine DosageEstablish the dosage by trial mixes; early-strength gain depends on dosage. Confirm the range from the current Sika Pakistan PDS.
  2. DispensingAdd SikaRapid-1 to the concrete with the mixing water. When used with a superplasticiser, add as directed so as not to alter the mix.
  3. MixingMix thoroughly for uniform dispersion.
  4. TrialsCarry out laboratory trials before site concreting, especially for new mix designs.
  5. CuringCure the fresh concrete properly, especially at high temperatures, using Sika Antisol products or wet hessian.

Follow the official Sika Technical Data Sheet for full application details.

FAQs

Frequently asked questions

What is SikaRapid®-1?

A liquid hardening accelerator for concrete and mortar that boosts early strength without reducing final strength.

Does it contain chlorides?

No, it is chloride free and suitable for reinforced concrete.

Can it be used with a superplasticiser?

Yes, it does not change the fresh concrete properties produced by the superplasticiser.

What is it used for?

Applications needing fast early strength within 6-24 hours, precast, and cold-weather concreting.

Where are the full technical specifications?

Detailed dosage figures are in the current official Sika Pakistan Product Data Sheet, available on request.

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Technical advice

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