Product Data Sheet Show all documents

SikaControl®-730 W WT

(former MLife WP 730W)

Hydrophobic pore-blocking admixture for watertight concrete production

SikaControl®-730 W WT is a hydrophobic poreblocking admixture for concrete. It significantly reduces water absorption of concrete through its pore-blocking and hydrophobic actions. SikaControl®-730 W WT reacts with the cement hydration process to form a hydrophobic ingredient to reduce the capillary suction and prevent the ingress of potentially deleterious soluble material, resulting in concrete with enhanced durability. Suitable for use in hot and tropical climatic conditions.

SikaControl®-730 W WT waterproof admixture in concrete has the following advantages:
▪ Improves significantly concrete water impermeability
▪ Improves concrete durability
▪ Reduces ingress of sulfates and carbonation
▪ Reduces leaching
▪ Chloride free
▪ Ammonia Free
Product Data Sheet Show all documents

Usage

SikaControl®-730 W WT is suited to most concrete structures that are subjected to water pressure and dampness from internal or external sources such as:
  • Basement walls and floors
  • Tunnels / underpass
  • Foundations, piles and pile caps
  • Water retaining structures, swimming pools, water tanks, reservoirs, water towers
 
  • Land drainage, manholes
  • Reinforced concrete in marine environment subject to tidal and wet / dry cycling
  • Waste water treatment and desalination plant

Advantages

SikaControl®-730 W WT waterproof admixture in concrete has the following advantages:
▪ Improves significantly concrete water impermeability
▪ Improves concrete durability
▪ Reduces ingress of sulfates and carbonation
▪ Reduces leaching
▪ Chloride free
▪ Ammonia Free

Packaging

210 L drums

Colour

Clear to pale yellow liquid

Product Details

Sustainability / Certifications / Approvals

CERTIFICATES AND TEST REPORTS

SikaControl®-730 W WT follows the requirements of EN 934-2 Table 9
Product Information

Composition

Specially selected chemical composition

Shelf life

9 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 +35°C. Protect from direct sunlight.

Density

~1.03 kg/l (+25°C)

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 SikaControl®-730 W WT 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.

Concrete mix design

We recommend the following base criteria for design of a concrete mix containing SikaControl®-730 W WT:

Minimum binder content:

380 kg/m3 (including PFA, GGBS,
and Silicafume)

Water / binder ratio:

<0.45

 

Application

Application Information

Dispensing

SikaControl®-730 W WT is added to the gauging water or simultaneously poured with it into the concrete mixer at the batching plant.
Do not add SikaControl®-730 W WT directly to the dry mix. Optimal result is obtained if SikaControl®-730 W WT is poured into the concrete mix right after the addition of the first 80% of the mixing water, i.e. when all solids are wetted.

Compatibility

SikaControl®-730 W WT may be combined with all types of Portland cement, concretes containing pozzolanic materials such as: GGBS (Ground Granulated Blast Furnace Slag), Fly Ash (PFA) , Micro Silica (Silica Fume) and the following Sika product ranges / admixtures:
Sika® Plasticisers: Sika® ViscoCrete®, SikaPlast®, Sikament®, Plastiment®

SikaFiber®, Sika Aer®, SikaPump®, Sika® FerroGard®, Sika® Control.
We recommend to perform trial mixes to establish the required performance when combining SikaControl®-730 W WT with the above or other admixtures.
Please consult our Sika Technical Department.
Consumption

Recommended dosage

1.0 - 2.0 % by weight of binder
Higher dosages by weight of binder can 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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