Type A protection is defined by BS8102:2009 as 'barrier protection'. This is where a membrane is put in place offering a barrier to the passage of water between the internal and external environments.

Where can it be used?

  • New build basmements.
  • Basement refurbishments
  • Semi Basements
  • Storage or plant rooms
  • Below Ground car parks
  • Retaining Walls
  • Lift Pits
  • Tunnels
  • Podium Decks
  • Swimming Pools

Advantages of Bentofix® GCLs

  • Versatile sealing applications possible
  • Immediate sealing and long-term performance with high swellable sodium bentonite powder
  • Outperforms compacted clay liners
  • Robust geotextiles encapsulate and contain the bentonite
  • Uniform needle-punching provides multi-directional shear strength
  • Thermal Lock process increases internal shear strength and interface friction angles
  • Self-sealing length overlaps; with BFG types all overlaps self-seal
  • Quick, easy and cost effective to install

Bentofix® geosynthetic clay liners (GCL) exemplify how geosynthetics perform best

Best performance by interacting with natural elements to create something stronger or more secure.

Needle-punching revolutionised the Bentofix® GCL effectivity

The needle-punched manufacturing technology greatly increases the internal and external shear strength of GCLs and expands the range of applications in which GCLs can be used. The needle-punching process firmly bonds the three unique layers of Bentofix® – two outer encapsulating geotextiles and the core of sodium bentonite. This bond creates a single, engineered barrier that utilises the best of both synthetic and natural materials.

Bentofix® GCL and the power of powder bentonite

Bentofix® GCLs outperform significantly thicker layers of compacted clay. The exceptional, immediate swelling characteristic of powdered sodium bentonite provides a long-term barrier that can “self-seal and re-heal” (e.g., swell to fill potential punctured/damaged zones) and rehydrate to renew the barrier even if it has been exposed to desiccation. The highly engineered geotextile outer layers provide outstanding protection against piping of the bentonite, durability to resist damage, and strength to manage the challenges inherent in barrier designs, such as for security on slopes and against fluctuating heads.

The Thermal Lock process permanently locks the needle-punched fibres of the nonwoven geotextile layer with the Bentofix® carrier layer of GCL-types without PE coating and improves the hydraulic conductivity performance at low confining stresses. It also increases the pull-out resistance of the fibres – a durability-improving measure that increases inter-face friction, ensures long-term shear resistance and immediate fibre-strength during hydration.

Bentofix® X types are additionally extrusion-coated with a polyethylene liner ensuring an immediate and enhanced barrier to gas and radon while protecting against desiccation and critical substances.

 

Testimonials

The customers that have been supplied with the admixture have been pleased and we have had no issues with strength or quality.

The change to the bags sizes(introduction of the water soluable bag) has made it easier especially for manually handling on the plant side.

- Kevin D'Souza - London Concrete

The atal service has been fantastic, the architect specified the types of waterproofing that we’d need. We had early design meetings with atal and the main contractor and from that point we’ve gone through the whole process from design to copmletion. They’ve been great.

- Simon Mann

Thankyou so much to atal for inviting me to todays meeting. I've learnt a whole lot about building physics, Type B Waterproofing and seen some really interesting case studies. The product looks absolutely fantastic and will do very well i'm sure of it!

- Adam Meyrick

I have worked with the guys at Atal for a number of years now whilst working for a number of companies & I would recommend them to other potential customers. I like their proactive approach, customer service, technical knowledge & speedy deliveries. 

 

If I ever have a problem or detail that needs resolving there is normally  someone available to help, even if it means them jumping in the car & visiting one of our sites at short notice!

- Richard Cleghorn MCIOB, P Chapman Construction

Great service on pricing enquiries for supply and Install, also repairing work - friendly and efficient staff.

- Simon Marsh

I would go with atal for waterproofing on any of my projects!

- Mike Mansfield, Intelle Construction

MJL Contractors Ltd have worked with Atal for a number of years now. We appreciate the professional & approachable manner offered by all of the staff at Atal & we know that if we have a problem we only have to pick up the phone & they will do their best to solve it. Prices are competitive & deliveries arrive as agreed.

- Richard Cleghorn MCIOB, MJL Group Limited

‘’Project architects, RDA liaised with Atal to bring forward a set of waterproofing and tanking details to ensure a water tight lower ground floor level within the setting of the original Bristol Evening Post print factory basement.  Atal provided us with design drawings and specifications founded on their product range and comprehensive industry experience, with which we were able to confidently develop our working drawing package.’’

- Rich Brown – Russ Drage Architects

‘’We had the fortune of being introduced to Atal via our main contractor. We were very pleased with the work they carried out. Although we had some challenges with some leaks with our new build Atal was able to identify the source of the problem very quickly and resolve it immediately. I would have no hesitation in recommending Atal.’’

- Prakash Patel – Hertz

‘’We have completed the groundworks package and almost completed the RC frame package at ‘’3 Glass Wharf’’ in Bristol on behalf of HMRC through Wates Construction. Throughout this project 4D Structures worked alongside Atal UK to ensure the waterproofing elements involved were installed to the highest standard. It was a pleasure working with Atal from design stage right through to the final sign off. They provide a brilliant service from design, supply of materials and also on site help and pre pour inspections. I would highly recommend them and look forward to working with them again in the near future.’

- Jordan Keyes – 4D Structures

‘’Atal have provided consistently quality products, on time at very competitive prices when compared to other high spec structural waterproofing brands. Customer Service has also been consistently, and the inclusion of detailed design documents tailored to specific projects goes above and beyond what other waterproofing companies are often willing to do. Overall, Atal have provided reliable, high quality products and customer service every time we have required their expertise’’ 

- Tom Luscombe – D Wall Construction Services

‘’We have been working with Dave and his team since the inception of the company and it is no surprise at all that the company continues to flourish. The services that Atal offers are unique and un-rivalled in the UK waterproofing industry, and it’s the reason why we as designers and our supply chain partners continue to use them. Keep up the good work Atal!’’

- Gavin Fairclough – Austin Partnership

“We always use Atal for their waterproofing expertise because of their technical ability to provide bespoke waterproofing design solutions tailored to our structural requirements in a proactive and efficient timescale”

- Matt Jones - Vale Consultancy

"Atal have a comprehensive product range, they always offer practical achievable solution and delivery on time results. David is very knowledgeable, and his positive approach is refreshing, hopefully we will continue to enjoy our mutually beneficial relationship, long into the future.”

- Simon Monk - McDermotts

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