Thermaflow thermal fill
When designing duct-bank systems it is important to anticipate risks and implement preventive solutions to avoid potential outage problems. Lafarge's Thermaflow is a proprietary concrete mix that offers a range of strengths and levels of thermal resistivity for optimizing the design of duct-bank systems for predictable thermal performance and potential project cost savings.
The challenge: Underground transmission lins require a stable thermal environment. Excessive heat can cause:
- derating of cable ampacity and hot spots
- reduction in cable lifespan
- premature cable failure to conduit
Backfill material selection needs to consider:
- thermal stability;
- low (and accurate) thermal resistivity;
- self consolidation;
- precise spread, viscosity and flowability; and
- local availability.
To ensure power that never stops:
Think beyond concrete
Thermaflow minimizes the depth of burial and cost of backfill, and maximizes the number of conduits and size of ducts
Consult Lafarge's experts
Our team marry science, soil and concrete - and find the right solution for your project
Measure, don't assume
The rho value of 90 isn't a magic number. Soil conditions vary from location to location.
