High compression-resistant backfill TRUBED

for ductwind turbinefor roads

Overview
For underground utility installations where thermal performance, structural stability and regulatory compliance are essential, our Cable Sands, Cement Bound Sands (CBS) and backfill materials deliver engineered solutions. Products are specified for LV, HV and UHV cable installations across infrastructure sectors and designed to meet ENA TS 97-1 requirements.

Cable Sands: Precision Bedding for Power & Data
ENA TS 97-1 compliant cable sands are graded and manufactured to provide high thermal conductivity for efficient heat dissipation from buried cables, consistent compaction and stable bedding for long-term performance.

• Consistent grading and density
• Enhanced heat dissipation for underground cables
• Excellent compaction and trench stability
• Reduces risk of cable overheating and service interruptions

Cement Bound Sands (CBS): Strength Meets Workability
Factory-blended semi-dry cement bound sand mixes supplied to defined ratios for trench reinstatement, duct bedding and void filling, balancing structural performance with on-site workability.

• Mix ratios available from 1:3 to 1:20 (cement : sand)
• Workability typically 8–12 hours (extended up to 12 hours)
• Selected CBS mixes with low thermal resistivity (≤ 1.2 Km/W)
• High load-bearing capacity suitable for reinstatement
• Compliant with ENA TS 97-1 and relevant NGTS standards (NGTS 3.05.07)

Backfill Solutions: Built for Longevity
Backfill materials tailored for civil engineering, utilities and renewable energy projects to provide durable trench stabilisation and duct protection with void-free compaction and moisture resistance.

• Void-free compaction and consistent density
• Moisture resistance for long-term performance
• Thermal regulation to support cable rating
• Reduces maintenance and lifecycle costs

Applications

• Cable bedding and duct covering
• Pipe protection and trench reinstatement
• Solar and wind farm infrastructure
• Rail, highway and utility trenching

TRUBED Cement Bound Sand
TRUBED is a factory-mixed stabilised cement bound sand range. Typical TRUBED Utility mixes are semi-dry and supplied at example ratios such as 1:14 (cement : sand). TRUBED products are available as standard, traditional and mobile-batched materials and are quality assured and ENA TS compliant.

• TRUBED Utility: factory-mixed for cable bedding and duct covering
• Typical TRUBED mix example: 1:14 cement : sand
• Standard CBS mixes factory-blended from 1:3 to 1:20 depending on requirements
• Key TRUBED features: customisable ratios; workable up to 12 hours; ENA TS 97-1 compliant; low thermal resistivity; void ratio ≤ 0.54
• Typical TRUBED uses: cable bedding, duct covering, trench stabilisation and infill

Site Solutions (CBS) for Major Projects
For large programmes we offer nationwide mobile batching delivering ENA TS compliant CBS. Mobile batching outputs range from 1,200 t/shift to 5,600 t/shift, with options for multiple plants and relocation to suit site logistics and programme requirements.

• Bespoke supply for high-output schemes
• Mixing tailored for client outputs, stockpiles and logistics
• Multiple batching plants and relocation options
• Rapid mobilisation to meet project timelines

Why Choose Us?

• ENA TS 97-1 certified products
• Nationwide delivery (bulk & bagged)
• Bulk and bagged supply options
• Technical support and bespoke mix design
• Site solutions: mobile batching and TRUBED for long-term projects

Technical specifications

• Standards: ENA TS 97-1; selected mixes compliant with NGTS 3.05.07
• Cement Bound Sands thermal resistivity: selected mixes ≤ 1.2 Km/W
• Mix ratios: typical CBS range 1:3 to 1:20 (cement : sand); TRUBED example 1:14
• Workability: up to 12 hours (typical 8–12 hours)
• Void ratio (TRUBED / selected CBS): ≤ 0.54 (example for TRUBED Utility)
• Mobile batching output capability: 1,200 t/shift to 5,600 t/shift
• Supply radius for fixed outlets: quality-assured sands and CBS can be supplied up to 30 miles from a fixed outlet (service model)
• Key performance: consistent grading/density, rapid heat dissipation, excellent compaction/stability, high load-bearing capacity and moisture resistance