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Sika® WT-10

Pore blocking integral admixture with hydrophobic properties for watertight concrete production

Sika® WT-10 is an integral admixture which greatly reduces the water absorption of concrete through its pore blocking and hydrophobic actions. The incorporation of Sika® WT-10 in the concrete mix ensures its beneficial effects are distributed throughout the matrix, thus enhancing durability. Suitable for use in hot and tropical climatic conditions.

Sika® WT-10 waterproof admixture in concrete has the following advantages:
  • Significantly Improves concrete water impermeability
  • Improvement in concrete durability
  • Prevents ingress of sulfate and carbonation
  • Reduces leaching
  • Chloride free
  • Ammonia free
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Usage

Sika® WT-10 is particularly suited to most concrete structures that are subjected to water pressure and dampness from internal or external sources such as:
  • Water retaining structures
  • Partially or fully underground structures such as basements, car parks, shelters and other utilities
  • Tunnels
  • Concrete slabs and foundations
 
  • Concrete swimming pools
  • Concrete water tanks
  • Reservoirs
  • Lift pits
  • Marine structures

Advantages

Sika® WT-10 waterproof admixture in concrete has the following advantages:
  • Significantly Improves concrete water impermeability
  • Improvement in concrete durability
  • Prevents ingress of sulfate and carbonation
  • Reduces leaching
  • Chloride free
  • Ammonia free

Packaging

200 L drum, 1000 L flow bin
Bulk supply in tanker trucks possible on request

Colour

White liquid

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

Sika® WT-10 follows the requirements of EN 934-2 as a Water Resisting Admixture.
Product Information

Composition

Specially selected chemical composition

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. Protect from direct sunlight and frost.

Density

~1.06 (+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 Sika® WT-10 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 Sika® WT-10:

Minimum binder content:

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

Water / binder ratio:< 0.45

Application

Application Information

Compatibility

Sika® WT-10 may be combined with all types of Portland cement, concretes containing pozzolanic materials such as; GGBS, PFA , micro-silica and the following Sika product ranges / admixtures:
Sika® Plasticisers: Sika® ViscoCrete®, SikaPlast®, Sikament®, Plastiment®
SikaFiber®

Sika Aer®, SikaPump®, Sika® FerroGard®-901, Sika® Control-40

We recommend to perform trial mixes to establish the required performance when combining Sika® WT-10 with the above or other admixtures. Please consult our Sika Technical Department.

Dispensing

Sika® WT-10 is added to the gauging water or simultaneously poured with it into the concrete mixer at the batching plant.
Do not add Sika® WT-10 directly to the dry mix.
For optimum utilization we recommend thorough mixing at a minimum wet mixing time of 60 seconds.
The addition of the remaining gauging water (to fine tune concrete consistency) may only be started after two-thirds of the wet mixing time to avoid surplus water in the concrete.
Consumption

Recommended Dosage

1.5 - 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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