Abstract

Light weight deflectometer (LWD) has been widely used for quality assurance in road construction, in particular compaction of both chemically treated subgrade soil and aggregate subbase. However, it has been recognized that LWD measurements vary with many factors. Based on LWD tests in actual road construction, this presentation provides updated information on the LWD deflection measurements for both chemically treated subgrade soil and aggregate subbase.

Session Number

9

Session Title

Light Weight Deflectometer and Its Updated Deflections on Subgrade Treatments and Aggregates

Track Title

Design/Construction

Location

STEW302

Date of Version

March 2018

Start Date

3-6-2018 3:00 PM

End Date

3-6-2018 3:50 PM

Share

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Mar 6th, 3:00 PM Mar 6th, 3:50 PM

Light Weight Deflectometer (LWD)

STEW302

Light weight deflectometer (LWD) has been widely used for quality assurance in road construction, in particular compaction of both chemically treated subgrade soil and aggregate subbase. However, it has been recognized that LWD measurements vary with many factors. Based on LWD tests in actual road construction, this presentation provides updated information on the LWD deflection measurements for both chemically treated subgrade soil and aggregate subbase.