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Sikament® RB 3446

(former MRheobuild 3446)

HIGH RANGE SUPERPLASTICISING ADMIXTURE FOR THE PRODUCTION OF RHEOPLASTIC

CONCRETE

Sikament® RB 3446 is a high range, chloride free, water reducing superplasticiser with effective dual action properties. Sikament® RB 3446 used for high workability concrete as well as a substantial water reducing concrete admixture. Suitable for use in hot and tropical climatic conditions.

Sikament® RB 3446 allows the production of a flowable concrete, with a low water / cement ratio. Concrete with Sikament® RB 3446 shows strengths higher than concrete without admixture having the same workability. Due to the reduction in the water / cement ratio, all other properties of hardened concrete improve significantly such as;
  • Low permeability 
  • Shrinkage and creep 
  • Workability
  • Modulus of elasticity
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Usage

  • Low water/cement ratio concrete.
  • In complicated formwork or with congested reinforcement.
  • Concrete requiring long slump retention period
  • Walls, columns and piers
  • Slabs
  • Foundations
 

Advantages

Sikament® RB 3446 allows the production of a flowable concrete, with a low water / cement ratio. Concrete with Sikament® RB 3446 shows strengths higher than concrete without admixture having the same workability. Due to the reduction in the water / cement ratio, all other properties of hardened concrete improve significantly such as;
  • Low permeability 
  • Shrinkage and creep 
  • Workability
  • Modulus of elasticity

Packaging

210 L drum, 1000 L flowbin or bulk supply in tanker

Colour

Dark brown liquid

Product Details

Sustainability / Certifications / Approvals

CERTIFICATES AND TEST REPORTS

Sikament® RB 3446 follows the requirements of ASTM C494; Types A, F & G and BS EN 934-2
Product Information

Composition

Sulphonated naphthalene

Shelf life

12 months from date of production if stored properly

Storage conditions

Store in undamaged, unopened, original sealed packaging in dry conditions at temperatures between +5 °C and +45 °C. Mix well before use.

Density

~1.21 kg/l (+25 °C)

pH-Value

6–8

Total chloride ion content

Nil

(EN 934-2)

 
Technical Information

Concreting guidance

The standard rules of good concreting practice for production and placing must be observed when using Sikament® RB 3446 in concrete. Refer to relevant standards. Fresh concrete must be cured properly especially at high temperatures in order to prevent plastic and drying shrinkage. Use Sika® Antisol® products as a curing agent or apply wet hessian.

Application

Application Information

Compatibility

Sikament® RB 3446 is suitable for mixes containing all types of cement and supplementary cementitious materials such as: Microsilica (Silica Fume), Fly Ash (PFA), GGBS (Ground Granulated Blast Furnace Slag) and the following Sika products:
▪ Sika® Plastiment®
▪ SikaPump®
▪ Sika® FerroGard®,
▪ SikaFume®
▪ SikaFiber®
▪ Sika® Aer
▪ Sika® Stabilizer
▪ SikaControl®

We recommend to perform trial mixes to establish the required performance when combining Sikament® RB 3446 with the above products or other admixtures. Please consult our Sika Technical Department for further assistance.

Dispensing

Sikament® RB 3446 should be added to the mix with the gauging water, i.e. when all solids are wetted. Avoid adding the admixture to the dry aggregates. Alternatively, when using Sikament® RB 3446 to produce flowing concrete at site using ready mix trucks, it can be added to the concrete via the feed hopper at the rear of the truck. Mix before discharge for 3 minutes at 10 rpm to produce a fully homogenous mix.
Consumption

Recommended dosage

Sikament® RB 3446 is normally dispensed at a rate of 0.6 – 3.0 Iitres per 100 kg of total binder. Other dosages may be used depending on the mix design, raw materials, climatic conditions and concrete requirements. Trial mixes must be performed to establish the exact dosage as per the project requirements.

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