Product Data Sheet Show all documents

SikaControl®-230 WT

WATER RESISTING AND CRYSTALLINE WATERPROOFING CONCRETE ADMIXTURE

SikaControl®-230 WT is a combined water resisting and crystalline waterproofing admixture used to reduce the permeability of concrete and to enhance the self-healing abilities of the concrete.

SikaControl®-230 WT consists of a mixture of cements, amino alcohols and fillers. These active materials will form non-soluble materials throughout the pore and capillary structure of the concrete and seal the concrete permanently against penetration of water and other liquids. In addition the special formula and ingredients of SikaControl®-230 WT enhances the self-healing properties of concrete and will improve the ability to heal cracks in concrete. SikaControl®-230 WT has the following characteristics and benefits:
  • Reduced water penetration under pressure
  • Reduced water absorption
  • Enhancement of self-healing properties of the concrete
  • Improvement in resistance against chemical attack
  • Reduced vapour transmission
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Product Data Sheet Show all documents

Usage

SikaControl®-230 WT has been specifically formulated to produce high quality waterproof concrete. SikaControl®-230 WT treated concrete is used as a part of the Sika® Watertight Concrete System. SikaControl®-230 WT can be used in any below / in / above ground watertight structures such as:
  • Basements
  • Parking garages
  • Utility / plant rooms
  • Tunnels
  • Swimming pools
  • Water retaining structures
  • Dams
  • Waste water treatment structures
  • Underground commercial facilities (malls, transportation hubs etc.)
 

Advantages

SikaControl®-230 WT consists of a mixture of cements, amino alcohols and fillers. These active materials will form non-soluble materials throughout the pore and capillary structure of the concrete and seal the concrete permanently against penetration of water and other liquids. In addition the special formula and ingredients of SikaControl®-230 WT enhances the self-healing properties of concrete and will improve the ability to heal cracks in concrete. SikaControl®-230 WT has the following characteristics and benefits:
  • Reduced water penetration under pressure
  • Reduced water absorption
  • Enhancement of self-healing properties of the concrete
  • Improvement in resistance against chemical attack
  • Reduced vapour transmission

Packaging

6 x 1.75 soluble bags

Colour

Powder / Greyish

Product Details

Product Information

Composition

Mixture of cements, amino alcohols and fillers

Shelf life

12 months from date of production if stored in unopened and undamaged original sealed containers.

Storage conditions

Storage at temperatures between +5 °C and +30 °C. Protect from direct sunlight, moisture, frost and contamination.

Density

~750 kg/m3

 
System information

Compatibility

Sika joint systems is highly recommended to seal construction, movement, and difficult joints.

Construction Joints

Movement Joints

Special/Difficult Joint

Sika® Waterbar

Sika® Waterbar

SikaFuko®

Sika Swell® S-2

Sikadur® Combiflex®

Sikadur® Combiflex®

Sika® Hydrotite

SikaFuko®
Sikadur® Combiflex®

Concrete produced using the SikaControl®-230 WT will produce concrete with improved water impermeability. However, the system is not designed as a moisture vapour barrier and should therefore only be specified under the following conditions:

  • No finishing is required
  • A breathable finish such as plaster, quarry ti les, floor hardener, etc. is required

If non-breathable finishes such epoxy, polyurethane flooring systems, vinyl tiles, carpet, etc. are to be applied, a temporary moisture barrier will be required as an underlay.
Technical Information

Concreting guidance

The standard rules of good concreting practice, concerning production and placing, are to be followed.
Curing
As curing affect watertightness of the concrete, care should be taken to ensure proper curing. When concrete has hardened and finishing completed, a curing compound such as Antisol® shall be applied at the recommendation rate (refer to the respective product data sheets).

Concrete mix design

  • For waterproof concrete, Concrete mix design depends on local requirements and / or local standards for watertight concrete systems.
  • For Sika® Watertight Concrete, SikaControl®-230 WT has been formulated for use in concrete with a minimum binder content of 350 kg/m3 and a maximum w/b-ratio of 0.45. Depending on the specific mix design the dosage of HRWR/superplasticizer has to be evaluated in order to achieve a S3 / F4 consistence class (EN 206-1).
  • Laboratory trials are always recommended to evaluate and confirm actual water reduction and consistence class.

Application

Application Information

Compatibility

SikaControl®-230 WT may be combined with many other Sika products.

  • Sika® ViscoCrete® Series
  • Sikament® Series
  • SikaFume®
  • Sika® Fibre, etc.

Concrete containing SikaControl®-230 WT should have a minimum SCM of not more than 40%.

Note:

Always conduct trials before combining products in specific mixes and contact our Sika technical service for more information and advice.

Restrictions

When using of SikaControl®-230 WT in combination with SCM. The SCM content should be limited to max. 40 % of total binder content. (Fly ash / GGBFS / Silica fume).

DISPENSING

  • Before batching, check the truck/mixer to ensure no water is in the drum/mixer
  • Batch concrete based on the concrete mix design and mix homogeneously
  • Add SikaControl®-230 WT and mix for at least 5-10 minutes with the concrete mixing truck at full speed
  • Alternative dispensing sequence can be used provided that the batcher can ensure a homogeneous mix. The homogeneity of mix after dosing of SikaControl®-230 WT remains the responsibility of the applicator. The w/c ratio and consistency control remains the responsibility of the concrete producer. Actual plant trials must be carried out before jobs commence to determine both fresh and hardened properties.
Consumption

Recommended dosage

1.75 kg bag per m3

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