Observations/Finding

Project Report: RTR Tower – Fiber Duct Bank Density Tests

Project Overview:

• Location: RTR Tower
• Scope: Fiber Duct Bank Placement between Sierra and Mike 14
• Section Length: 50 feet

Density Tests Summary:

Test #1:

• Wet Density (WD): 117.0 lb/ft³
• Dry Density (DD): 87.5 lb/ft³
• Moisture Content: 33.6%
• Compaction: 78%

Test #2:

• Wet Density (WD): 119.8 lb/ft³
• Dry Density (DD): 91.5 lb/ft³
• Moisture Content: 30.8%
• Compaction: 82%

Specifications:

• Required Compaction: 80%

Observations:

• Both density tests were conducted on the precast duct bank section between Sierra and Mike 14.
• Test #1 exhibited a wet density of 117.0 lb/ft³ and a dry density of 87.5 lb/ft³, with a moisture content of 33.6% and compaction of 78%.
• Test #2 showed improvements with a wet density of 119.8 lb/ft³ and a dry density of 91.5 lb/ft³. The moisture content reduced to 30.8%, and the compaction increased to 82%.

Compliance with Specifications:

• The specified compaction requirement is 80%, which was achieved and surpassed in Test #2, indicating satisfactory compaction levels for the fiber duct bank.