Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Continuous Compaction Control Measurements for Quality Assurance in Conjunction with Light Weight Deflectometer Target Modulus Values
The development of mechanistic-empirical pavement design has increased demand for measuring performance-related soil properties during earthwork construction. Tools such as the light weight deflectometer (LWD) allow for quantification of the stiffness of subgrade materials during construction. However, a major limitation of the LWD is its inability to provide subgrade stiffness information over the entire project site. The development of continuous compaction control (CCC) has provided the ability to collect near continuous measurements of compaction effort information during the compaction process through the instrumentation of compaction rollers. In this study, LWD and CCC measurements (compactometer value, CMV) were collected during active construction of a roadway. Target modulus values from LWD measurements were determined utilizing AASHTO TP 123-17 to indicate passing and failing LWD tests collected in the field. This study examined general trends between recorded localized CMV measurements and local passing and failing LWD measurements, to assess the utility of CMV as a quality assurance tool for earthwork construction.
Continuous Compaction Control Measurements for Quality Assurance in Conjunction with Light Weight Deflectometer Target Modulus Values
The development of mechanistic-empirical pavement design has increased demand for measuring performance-related soil properties during earthwork construction. Tools such as the light weight deflectometer (LWD) allow for quantification of the stiffness of subgrade materials during construction. However, a major limitation of the LWD is its inability to provide subgrade stiffness information over the entire project site. The development of continuous compaction control (CCC) has provided the ability to collect near continuous measurements of compaction effort information during the compaction process through the instrumentation of compaction rollers. In this study, LWD and CCC measurements (compactometer value, CMV) were collected during active construction of a roadway. Target modulus values from LWD measurements were determined utilizing AASHTO TP 123-17 to indicate passing and failing LWD tests collected in the field. This study examined general trends between recorded localized CMV measurements and local passing and failing LWD measurements, to assess the utility of CMV as a quality assurance tool for earthwork construction.
Continuous Compaction Control Measurements for Quality Assurance in Conjunction with Light Weight Deflectometer Target Modulus Values
Baker, William J. (Autor:in) / Meehan, Christopher L. (Autor:in)
Geo-Congress 2020 ; 2020 ; Minneapolis, Minnesota
Geo-Congress 2020 ; 368-376
21.02.2020
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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