Lightweight Deflectometer (LWD) Assessment for Quality Assurance

Lightweight Deflectometer (LWD) is proposed to replace nuclear gauge compaction testing. Tasks include: (1) Literature Review of current best practices using Lightweight Deflectometers for assurance and acceptance, (2) laboratory and field testing existing Alaska Department of Transportation and Public Facilities (DOT&PF) Capital Projects in Northern Region and Central Region compared with nuclear testing and results, (3) draft LWD special provisions for DOT&PF quality control and acceptance of soils and aggregates, guidelines for DOT&PF project testing using LWD, (4) training materials for DOT&PF staff to use LWD. Project includes quarterly reporting as well as interim report and final report.

Language

• English

Project

• Status: Completed
• Funding: $218698
• Sponsor Organizations:

  Federal Highway Administration

  Alaska Division
  709 West 9th Street,
  Juneau, AK  United States  99802-1648
• Managing Organizations:

  Alaska Department of Transportation and Public Facilities RD&T2

  3132 Channek Dr.
  Juneau, AK  United States  99801
• Project Managers:

  Bosin, Anna

• Performing Organizations:

  HDL Engineering

  Anchorage, Alaska  United States 
• Start Date: 20220302
• Expected Completion Date: 20231231
• Actual Completion Date: 20231231
• Source Data: https://dot.alaska.gov/stwddes/research/assets/pdf/fhwa_ak_rd_000s_964.pdf

Subject/Index Terms

• TRT Terms: Acceptance tests; Best practices; Compacted soils; Deflectometers; Nuclear gauges; Road construction; Subgrade materials; Training
• Geographic Terms: Alaska
• Subject Areas: Construction; Education and Training; Geotechnology; Highways;

Filing Info

• Accession Number: 01879140
• Record Type: Research project
• Source Agency: Alaska Department of Transportation and Public Facilities
• Files: RIP, STATEDOT
• Created Date: Apr 12 2023 7:38PM