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Sikament® RB 1400

(former MRheobuild 1400)

HIGH RANGE WATER-REDUCING SUPERPLASTICING ADMIXTURE FOR THE PRODUCTION OF RHEOPLASTIC  CONCRETE 

The basic components of Sikament® RB 1400 are synthetic polymers which allow mixing water to be reduced considerably and concrete strength to be enhanced significantly, particularly at early ages. Sikament® RB 1400 is a chloride free product. 
Suitable for use in hot and tropical climatic conditions.

Sikament® RB 1400 allows the production of flowable concrete, with a low water / cement ratio. Concrete with Sikament® RB 1400 shows strengths higher than concrete without admixture having the same workability. The increase in strength, specially evident at early ages remains at later ages, both in air cured and steam cured processes. Initial and final sets do not change significantly with respect to concrete without admixture. Therefore, whenever longer transport and finishing times are needed, the use of retarding admixtures, such as SikaPlast® PZ 75 R or Sikament® RB 561M are recommended. Due to the reduction in the water / cement ratio, all other properties of hardened concrete improve significantly, namely; lowered permeability, shrinkage and creep and modulus of elasticity.
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Usage

Sikament® RB 1400 can be used as a superplasticizer for the production of free flowing concrete for:
▪ Production of rheoplastic self-compacting concrete.
▪ Pre-cast concrete elements
▪ Low water/cement ratio concrete.
▪ In complicated formwork or with congested reinforcement
   

Advantages

Sikament® RB 1400 allows the production of flowable concrete, with a low water / cement ratio. Concrete with Sikament® RB 1400 shows strengths higher than concrete without admixture having the same workability. The increase in strength, specially evident at early ages remains at later ages, both in air cured and steam cured processes. Initial and final sets do not change significantly with respect to concrete without admixture. Therefore, whenever longer transport and finishing times are needed, the use of retarding admixtures, such as SikaPlast® PZ 75 R or Sikament® RB 561M are recommended. Due to the reduction in the water / cement ratio, all other properties of hardened concrete improve significantly, namely; lowered permeability, shrinkage and creep and 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 1400 follows the requirements of ASTM C494; Type A & F and EN 934-2
Product Information

Composition

Sulphonated napthalene

Shelf life

12 months from date of production when stored properly

Storage conditions

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

Density

~1.20 kg/l (+25°C)

Total chloride ion content

Nil 

(BS 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 1400 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 1400 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:

  • 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 1400 with the above products or other admixtures. Sikament® RB 1400 should not be premixed with any other admixtures. If other admixtures are to be used, those should be dispensed separately. Please consult our Sika Technical Department for further assistance.

Dispensing

Sikament® RB 1400 is a ready-to-use admixture to be added to the concrete as a separate component. Optimal result is obtained if Sikament® RB 1400 is poured into the concrete mix right after the addition of the first 70 % of the mixing water, i.e. when all solids are wetted. Avoid adding the admixture to the dry aggregates.

Alternatively, when using Sikament® RB 1400 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 1400 is normally dispensed at a rate of 0.8 – 2.0 Iitres per 100 kg of 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 rate required.

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