Intelligent soil compaction systems
By: Michael A. Mooney ... [et al.].
Contributors: National Research Council (U.S.). Transportation Research Board; National Cooperative Highway Research Program; American Association of State Highway and Transportation Officials; United States. Federal Highway Administration
Series: NCHRP report -- 676; Report (National Cooperative Highway Research Program) -- 676.
Publisher: Transportation Research Board
Published: 2010
Place of publication: Washington, D.C
Language: eng
Number of pages: 165
ISBN-13: 9780309155199
Subjects: Intelligent control systems; Soil compaction
Description: TRB's National Cooperative Highway Research Program (NCHRP) Report 676: Intelligent Soil Compaction Systems explores intelligent compaction, a new method of achieving and documenting compaction requirements. Intelligent compaction uses continuous compaction-roller vibration monitoring to assess mechanistic soil properties, continuous modification/adaptation of roller vibration amplitude and frequency to ensure optimum compaction, and full-time monitoring by an integrated global positioning system to provide a complete GPS-based record of the compacted area--
Notes: At head of title: National Cooperative Highway Research Program.

Includes bibliographical references (p. 159-161).

Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration NCHRP project 21-09
Table of contents: title: Ch. 2. State of Practice; title: Continuous Compaction Control and Intelligent Compaction; title: State of Current and Emerging IC Equipment; title: Existing CCC Specifications; title: Ch. 3. Fundamentals of Roller Measurement Values; title: Roller MV Reporting Characteristics; title: Roller MV Position Reporting Error; title: Repeatability of Roller Measurement Values; title: Comparison of Roller Measurement Values; title: Measurement Value Dependence on Machine Parameters; title: Influence of Transverse Soil Heterogeneity on Roller Measurement Values; title: Conclusions and Recommendations; title: Ch. 4. Relationship Between Roller-Based Stiffness and in Situ Response; title: Roller-Induced Stress Paths and Levels; title: Measurement Depth in Vertically Homogeneous Embankments; title: Relating Roller-Based Stiffness to in Situ Response; title: Sensitivity of Roller-Based Stiffness to Thin Lifts; title: Conclusions; title: Ch..6. Relationships Between Roller Measurements Values and Point Measurements; title: Materials and Testing; title: Simple Linear Regression Relationships; title: Multiple Linear Regression Analysis; title: Relationships Between Roller MV and Resilient Modulus; title: Summary and Conclusions; title: Ch. 7. Quality Assurance of Pavement Earthwork Using Roller-Integrated Continuous Compaction Control (Recommended Specification Options); title: Scope; title: Definitions; title: Notation; title: Important Considerations; title: Instrumented Roller Requirements; title: Ch. 8. Case Study Evaluation of Specification Options; title: Ch. 9. Conclusions.