Sika Watertight – Waterproof Concrete
Mick George Concrete are able to provide comprehensive watertight solutions for a wide range of projects and structures courtesy of its Sika admixture applications.
Sika Watertight
Sika is the market leader in Concrete admixture technology, now the most widely used system of its type in the UK.
Combining this with our concrete expertise means that Mick George Concrete are able to provide comprehensive waterproof Concrete solutions for a wide range of projects and structures.
A two-step process is used to achieve a waterproof concrete:
Step 1:Â Reduce the water cement ratio, increasing the density of the mix and minimising the size of the pores whilst producing a highly workable concrete to aid placement and compaction.
Step 2:Â Block the remaining capillary pores ensuring a complete watertight finish.
Sika Applications
Sika® Watertight Concrete complies with BS 8102:2009 Type B Construction.
- Basements
- Lift Pits
- Retaining walls
- Concrete façades
- As well as for keeping water in, for example: swimming pools
Sika Watertight
The system consists of concrete that has been specially modified with Sika admixtures to produce watertight concrete; and carefully selected waterstops for construction and movement joints. Watertight concrete structures can be designed to keep water in or out, or both making the perfect waterproof Concrete solution for a whole range of projects.
The need to maximise design flexibility has led owner and designer to look below ground as an alternative, whether for basement parking or a habitable environment.
Sika Benefits
The advantages of the Sika® Watertight Concrete System are clear:
- Time saved at design and construction stages: The need for external membranes with their complex detailing and installation is eliminated.
- Cost effective in comparison with membranes and other systems. Delivers maximum usable area to the occupier.
- Quality backed by Sika warranty, BBA certificate and a 60 years track record.
- Peace of mind for the client, specifier, contractor and end user of the building – 15 year warranty.
Admixtures
Due to its capillaries and pores, concrete is a naturally-porous material. The Sika® Watertight Concrete System incorporates a range of admixtures to improve its resistance to infiltration; effectively sealing the concrete permanently against the penetration of water and other liquid – creating a waterproof Concrete, while creating the optimum water/cement ratio.
A combined water-resisting and HRWR/Superplasticiser admixture.
A combined crystalline waterproofing concrete and HRWR/Superplasticiser admixture.
A liquid water-resisting waterproofing admixture.
Mid and high range water reducing admixtures which decrease the volume of capillary pores and improve rheology and consistency.
Jointing
The Sika® Watertight Concrete System also includes a range of complimentary jointing products to effectively seal construction joints and complete watertight structures:
a range of hydrophilic profiles and gun applied sealants, designed for the sealing and waterproofing of construction joints and penetrations (e.g. pipe entries).
High performance, over-banding sealing tape system for post-sealing and waterproofing of construction and movement joints.
Internal or external applied waterstops based on PVC, TPO or galvanised steel for construction and movement joints.
Injection hoses for construction joints that can be used for sealing by injection and re-injection in the event of future movement.
Latest Concrete Industry News
-
2022 Concrete Product Outputs Published
A report has recently been published which established the size of the concrete product market in the UK.
-
Concrete Carbon Emission Reduction
One of the most significant changes to the traditional recipe for concrete in more than 40 years is set to be introduced throughout the UK which will slash Carbon Emissions.
-
RAAC Impact Evaluated
Recent reports have highlighted the potential danger that this material possesses due to possible deterioration.
Get the latest news & offers