Product Data Sheet Show all documents

SikaRapid®-950

Low CEMI activator for reduced carbon concrete

SikaRapid®-950 is a powdered admixture for concrete designed to accelerate and activate the strength development of mixes with high levels of supplementary cementitious materials (SCMs) or cement replacement materials.

  • Rapid strength development
  • Enables use of reduced CEMI mix designs
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Product Data Sheet Show all documents

Usage

  • Sustainable concrete
  • Reduced carbon concrete
  • Mix designs with low CEMI content and high levels of cement replacement
  • Conventional concrete mix designs with up to 95 % Ground Granulated Blast Slag (GGBS)
  • Activator in 100 % GGBS geopolymer systems
 

Advantages

  • Rapid strength development
  • Enables use of reduced CEMI mix designs

Packaging

SikaRapid®-950 is supplied in 10 x 1.8 kg soluble bags contained in a watertight tub made from 100 % recycled plastic

Colour

White powder

Product Details

Sustainability / Certifications / Approvals

SUSTAINABILITY

SikaRapid®-950 is ideally suited for use in concrete where a reduced embodied CO2 content is required.

CERTIFICATES AND TEST REPORTS

Conforms to the requirements of BS EN 934-2 Table 7, hardening accelerating admixture for concrete
 
Product Information

Shelf life

12 months from date of production

Storage conditions

Store unopened in original packaging.  Protect from direct sunlight and moisture.

Density

0.73 kg/L

Total chloride ion content

0.10 % w/w (chloride free)

Equivalent sodium oxide

0.10 % w/w (alkali content)

 
Technical Information

Concrete mix design

SikaRapid®-950 allows the use of high levels of cement replacement, for example up to 95 % GGBS, or CIIIC binder type.  Please refer to BS 8500-1:2023 and BS 8500-2:2023 for information on specification of this and other low carbon binder types.

Application

Consumption

Recommended dosage

Typical dosage is 2.5 % by weight of binder: 1 x 1.8 kg bag per 70 kg binder per concrete cubic meter.

Dosage up to 5 % by weight of binder may be required in some systems.
Application steps

MIXING

SikaRapid®-950 is supplied in 1.8 kg soluble bags which should be added directly into the mixer and mixed until thoroughly distributed throughout the concrete.

 

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