Cement bound sand
We offer a range of products specifically designed for energy infrastructure and storage, aimed at reducing energy loss in the network, lowering cable requirements, and cutting costs and manpower during installation.
Our Powercrete range includes concrete, sands, and grouts tailored to meet the needs of the energy and storage industry.
Among these is our Cement Bound Sand (CBS), a specialised weak mix used primarily for bedding and infill to protect underground cable installations. With a 14:1 sand-to-cement ratio, CBS effectively conducts heat away from low and high voltage cables, ensuring safe, efficient electricity transmission while minimising energy loss.
All our CBS products comply with Energy Network Association Technical Specification (ENA TS) 97-1 and National Grid Technical Specification (NGTS) 3.05.07, with certification available upon request.
Proper compaction of CBS is essential for optimal thermal conductivity and to prevent cable damage.
For more information on our CBS or Powercrete ready-mixed concrete range, contact us today.
FAQs
Do you offer CBS available nationally?
Yes, Heidelberg Materials offers national coverage and our CBS complies with the requirements of ENA TS 97-1 and NGTS 3.05.07, so you can be assured of its quality. Please contact our technical sales team for more information on email marketing@uk.heidelbergmaterials.com
Will any 14:1 sand cement mix be suitable?
No, as not all materials have the required thermal conductivity. Please ensure that any material used has current UKAS acredited test results, which take approximately four weeks to carry out, to provide assurance that the material is fit for purpose.
How quickly does CBS ‘go off’?
CBS has a low moisture content and its performance will be significantly reduced if it is allowed to dry out too quickly. We would recomend that it is placed and compacted within 2 hours, although this could be extended provided the material is covered in polythene sheeting to prevent moisture loss.
