Project: T193700 #33/126

The objective of this project is to prepare a state of the art report based on the review of various backfill materials that are commonly used in the utility industry. The report should also summarize what is on the market that can be easily and reliably deployed as an alternative to native soil, select grade imported backfill or rock. The study should also include suitability of any anti-corrosion backfills on the market and the use of pole foams with enhanced grounding properties.  Finally, the study should provide a ranking of various backfill materials, their suitability about a specific foundation type and how it impacts on the foundation capacity.