Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nondestructive quality assessment of asphalt pavements based on dynamic modulus
Graphical abstract Display Omitted
Highlights A novel nondestructive QC/QA procedure is proposed based on in situ dynamic modulus. A method is proposed to correct in situ moduli to a reference asphalt temperature. In situ shear-wave velocity is very sensitive to pavement type and temperature. In situ density is much less sensitive than velocity to pavement type and temperature. Modulus is a critical, objective, and sensitive property of asphalt pavement systems.
Abstract Dynamic modulus has been recognized as an objective and sensitive material property for designing and evaluating pavement systems. To accurately measure the in situ elastic modulus (E =2(1+ν)ρVs 2) for nondestructive quality assessment of asphalt pavements, field measurements of density (ρ) via an electromagnetic gauge and shear-wave velocity (Vs) via surface-wave testing were examined for four paving projects covering a range of mixes and traffic loads. A quality control/quality assurance (QC/QA) procedure was developed to correct the in situ moduli at different field temperatures to a common reference temperature using a fitting function from experimental data for QC and using master curves from laboratory dynamic modulus tests for QA. The corrected in situ moduli can then be compared against the maximum moduli for an assessment of the actual pavement performance.
Nondestructive quality assessment of asphalt pavements based on dynamic modulus
Graphical abstract Display Omitted
Highlights A novel nondestructive QC/QA procedure is proposed based on in situ dynamic modulus. A method is proposed to correct in situ moduli to a reference asphalt temperature. In situ shear-wave velocity is very sensitive to pavement type and temperature. In situ density is much less sensitive than velocity to pavement type and temperature. Modulus is a critical, objective, and sensitive property of asphalt pavement systems.
Abstract Dynamic modulus has been recognized as an objective and sensitive material property for designing and evaluating pavement systems. To accurately measure the in situ elastic modulus (E =2(1+ν)ρVs 2) for nondestructive quality assessment of asphalt pavements, field measurements of density (ρ) via an electromagnetic gauge and shear-wave velocity (Vs) via surface-wave testing were examined for four paving projects covering a range of mixes and traffic loads. A quality control/quality assurance (QC/QA) procedure was developed to correct the in situ moduli at different field temperatures to a common reference temperature using a fitting function from experimental data for QC and using master curves from laboratory dynamic modulus tests for QA. The corrected in situ moduli can then be compared against the maximum moduli for an assessment of the actual pavement performance.
Nondestructive quality assessment of asphalt pavements based on dynamic modulus
Lin, Shibin (Autor:in) / Ashlock, Jeramy C. (Autor:in) / Williams, R. Christopher (Autor:in)
Construction and Building Materials ; 112 ; 836-847
25.02.2016
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Nondestructive quality assessment of asphalt pavements based on dynamic modulus
| British Library Online Contents | 2016
Nondestructive quality assessment of asphalt pavements based on dynamic modulus
| Online Contents | 2016
Nondestructive quality assessment of asphalt pavements based on dynamic modulus
| British Library Online Contents | 2016
Nondestructive quality assessment of asphalt pavements based on dynamic modulus
| British Library Online Contents | 2016
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