Heidelberg Materials Gold Waterproofing System

Dual approach with Sika proof fully bonded membrane system and joint sealing systems.

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Heidelberg Materials Silver Waterproofing System

Watertight concrete with appropriate Sika joint sealing systems.

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Heidelberg Materials Watertight concrete

A simpler alternative

Heidelberg Materials range of waterproof concrete is a simpler alternative offering contractors, engineers and clients the competitive edge in both cost and time savings compared to traditional methods of achieving watertight structures. Heidelberg Materials' Watertight Concrete is available from all of our static and mobile production plants.

Utilising the latest admixture technology from admixture partner Sika®, Heidelberg Materials' waterproof concrete gives confidence to all those involved in the project.

Every good quality concrete will allow the passage of water through it as a function of capillarity, when there is water on one side of the structure and air on the other, the volume of capillary pores in the concrete mix is proportional to the water/cement ratio.

A two-step process is used to achieve a waterproof concrete:

Step 1: 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: Block the remaining capillary pores ensuring a complete watertight finish. 

Suggested applications

  • Reservoirs
  • All underground applications
  • Water tanks
  • Dams
  • Sewage treatment works
  • Liquid storage tanks
  • Basements
  • Tunnels
  • Underground car parks
  • Plant rooms
  • Archive storage areas


  • Complies with BS 8102 type B integral waterproofing construction
  • Quality-assured
  • Sustainable
  • Eliminates the use of oil based (polyethylene) and other synthetic products such as membranes
  • Greatly reduces waste on site
  • Reduces vehicle movements to site
  • Is 100% recyclable
  • Keeps water in or out as required
  • Enhanced long term performance including increased durability
  • Reduced risk of reinforcement corrosion
  • Reduces installation time and cost
  • Available as a pumpable or flowing mix

Benefits subject to good concreting practice (placement, finishing and curing).

Case study - BDP studios

Heidelberg Materials Concrete supplied Heidelberg Materials watertight concrete during the construction of the stunning new BDP (Building Design Partnership) Studios in Manchester, in order to ensure a dry basement that conforms to BS 8102 Grade 4. Read more

Contact Details


Heidelberg Materials is a member of the Quality Scheme for Ready-mixed Concrete (QSRMC) and all our products carry this certification.


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Concrete volume calculator

Use our ready-mixed concrete calculator to select the best concrete for your project and work out the volume you require.

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Sustainable concrete solutions

Heidelberg Materials concrete can incorporate a proportion of Regen, a cement replacement material that generates a much lower level of embodied CO2 emissions than ordinary cement, minimising environmental impact. Recycled aggregates can also be incorporated subject to local availability and mix design.

Learn more about Regen