Cement Bound Sand (CBS) is a weak 14:1 sand to cement mix, which is predominately used as a backfill material for electrical cable installations in trenches. CBS not only protects the cable, it also reduces moisture migration removing the need to limit external cable surface temperature during the summer. Plus, due to the weak mix it can still be easily broken out if access or removal of the cable is required.

Benefits

  • Compaction made easier by total water/cement ratio of 2:1
  • The mix helps to protect the cable from damage during and after installation
  • Allows for the maximum permissible conductor temperature throughout the year
  • Easily removed if required

Specification

CBS is produced to ENA TS 97-1 and NGTS 3.05.07, with the following specification requirements:

  • Grading = >95% passing a 5.0mm BS Sieve
  • Mixture = 14:1 Sand to Cement Mix
  • Dry Relative Density = >1.6Mg/m³
  • Thermal Resistivity = <1.2°C m/W
  • Void Ratio = <0.54
  • Cohesion = Appendix C

Contact Us

Contact us if you have questions or would like to set up an appointment to discuss our products or services.

Contact Us

If you would prefer us to call you...

Complete the simple form below and one of our experts will call you back

Name(Required)
This field is for validation purposes and should be left unchanged.

Our Other Products

More Products

Our Services

Crushing, Screening & Mixing

Learn More

Asphalt Wastes with Coal Tar

Learn More

SMR Regen® Service

Learn More

Value Engineering and Materials Advice

Learn More

Recycling Depot Services

Learn More

Surfacing

Learn More

Try the OCL carbon calculator

Carbon Calculator
  • Avetta Logo
  • Chas Logo
  • Construction Line Logo
  • ISO 9001 Logo
  • ISO 14001 Logo