01133716

Monograph

http://onlinepubs.trb.org.../NCHRP118_Final_Report.pdf

The Briaud Compaction Device (BCD) is a tool that can be used to control compaction quality for pavement subgrade, pavement bases, pavement subbases, embankments, retaining wall backfill, and any other earth work requiring compaction. The BCD is a very rapid tester of the soil modulus near the ground surface. It has a 150 mm diameter flexible plate at the bottom end of a rod. The operator leans on the handle at the top end of the rod, the plate bends, and the bending strains are instantaneously measured by strain gages on the bottom plate. In this report the design improvements of the previous prototype BCD are described. The finished product is BCD-4; it is built by Roctest who also sells the BCD under a licensing agreement with Texas A&M University.

This NCHRP-IDEA investigation was conducted by the Texas Transportation Institute. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

Highway IDEA Project 118

English

47p

2009-5

NCHRP-IDEA Program Project Final Report

Final Report

Print

Photos; References (17) ; Tables (3)

Backfill soils; Base course (Pavements); Compaction; Earthwork; Embankments; Modulus of elasticity; Quality control; Road construction; Subbase (Pavements); Subgrade (Pavements); Technological innovations; Testing equipment

Briaud Compaction Device; Innovations Deserving Exploratory Analysis (IDEA) (Program)

Construction; Highways; Pavements; I52: Construction of Pavements and Surfacings

TRIS, TRB

Jul 10 2009 10:33AM