QUAZITE Underground Enclosure 15 000 lb. 8-1/2 L

[Music] introducing polymer concrete box collars by Hubble often underground enclosures are surrounded by a poured concrete apron that protects the cover and side wall from damage the process is labor-intensive and difficult to justify when the job is small the project starts with excavation suitable forms gravel backfill and reinforcing mesh concrete is either trucked in or mixed on-site and pour it in place vibration is used to ensure the even distribution of the wet concrete [Music] skilled labor travels the concrete to a smooth finish [Music] a box collar is a simple effective alternative that eliminates much flavor and time and installation after excavating approximately 3 inches of topsoil around the enclosure add a thin layer of gravel backfill and tent with a mechanical compactor [Music] the finished rate should be three inches below the top of the enclosure box collars for smal