Concrete reinforcement and waterproofing system installed at Surf Snowdonia

  • 24 May 2016

A concrete reinforcement and waterproofing system developed by Sika has been used on Surf Snowdonia, a new inland surf lagoon in Dolgarrog, North Wales.

Built by D Morgan, the 300m x 113m lagoon is capable of generating the longest artificial waves in the world. In order to create perfect waves, the lagoon has been built to strict profiling and contours.

In the creation of the Wavegarden central channel – the base for the wave making machine – two large concrete boxes were constructed that required a robust and durable waterproofing solution. D Morgan specified 400m2 of SikaProof A, together with 200m2 of Sika’s cementitious fibre reinforced Sikalastic-1K waterproofing system to deliver the necessary levels of watertightness to the central channel.

SikaProof A and Sikalastic

IMGP4092 (2)-w1302-h1256-2SikaProof A features a membrane surface, embossed with a grid pattern containing a sealant. The integrated sealant bonds tightly with the surface of the concrete, forming mini watertight compartments.  The membrane is topped by a thin layer of fleece which forms a mechanical bond to the concrete when it dries.

Following the application of SikaProof A, D Morgan installed the Sikalastic cementitious waterproofing membrane to the visible element of the walls that will sit above the waves.

The one component, fibre reinforced mortar is based on cement modified with special alkali-resistant polymers. It is ideally suited for waterproofing surfaces subject to flexural strain, such as water tanks and reservoirs. 

Central to the design of the lagoon are reinforced concrete housings at either end of the centrally located reinforced concrete channel that supports the wave making technology.  

Polypropylene fibres

In order to save installation time, Sika’s Adfil Durus polypropylene fibres were specified to replace traditional steel reinforcement around the edge of the lagoon. By using macro synthetic fibres, disruption to the site was minimised, as the system enabled faster placement within the concrete.

Further advantages of the polypropylene fibres include rust-resistance, 25% better abrasion resistance and 400 times better impact resistance. There is also an approximate saving of 50% CO2 compared with steel reinforced concrete.

To complete the system, construction joints were sealed with Sika Tricosal Metal Waterbar – a galvanised metal sheet with a layer of composite film on one side that bonds permanently to the concrete, acting as a barrier to the passage of water through the joints.

Sika’s solution was delivered in time for the re-opening of Surf Snowdonia in March 2016.

Sika Limited
Watchmead
Welwyn Garden City
Hertfordshire
AL7 1BQ
Telephone: +44 (0) 1707 394444

Visit Sika's website

Leave a Reply

More articles

Flowcrete

High-Tech Polish Gym Installs High-Tech Flowcrete Flooring

The Leszek Blanik Gym Hall Innovation and Implementation Centre at the Gdansk University of Physical Education and Sport has seen specialist resin systems from Flowcrete installed.

Posted in Articles, Building Industry News, Building Products & Structures, Building Systems, Case Studies, Floors, Posts, Restoration & Refurbishment, Retrofit & Renovation

RCM

RCM and SPSenvirowall cement their collaboration at Futurebuild 2019

The closer collaboration between RCM and SPSenvirowall was evident in a joint exhibition at Futurebuild 2019, whereby both companies shared a brand new stand.

Posted in Articles, Bricks & Blocks, Building Industry Events, Building Industry News, Building Products & Structures, Cladding, Exhibitions and Conferences, Facades, Innovations & New Products, Insulation, Posts, Roofs, Walls

Waterloo Air Products

Waterloo Air Products announces Head of National Sales

Waterloo Air Products, market leaders in the manufacture of ventilation grilles, diffusers, weather louvres and VAV systems, has appointed Andy Wardle as Head of National Sales.

Posted in Air Conditioning, Articles, Building Industry News, Building Services, Heating Systems, Controls and Management, Heating, Ventilation and Air Conditioning - HVAC, Posts, Recruitment

Wienerberger

Wienerberger bricks create impressive façades at community centre and nursery

Facing bricks from Wienerberger have featured in the creation of beautiful façades for the award-winning Storey’s Field Community Centre and Nursery project in Cambridge’s new Eddington development.

Posted in Articles, Bricks & Blocks, Building Industry News, Building Products & Structures, Case Studies, Facades, Posts, Restoration & Refurbishment, Retrofit & Renovation, Walls