Quality Control of Asphalt Mixes Using EM Density Gauge: A Statistical Evaluation of Field Durability
Source abstract
Abstract
It is proposed to reduce the statistical uncertainty to make informed decisions in pavement construction, using a non-destructive method to determine the density (p) of asphalt mixtures, a decisive parameter to know the quality of the material studied and the content of voids (air voids), contrasting the results with destructive and physical tests to specimens extracted at the test site. This was carried out in the field with the EM density gauge (electromagnetic), on a 71.2 km long stretch of road. The results of the non-destructive tests were compared with the AASHTO standards. The study was focused on a representative sample of 25.9% of the total population, obtained using intentional stratified statistical sampling; the standard deviation was taken as the decisive value of dispersion in the determination of the p-density of the mixtures. The AASHTO T343 standard establishes that the permissible standard deviation for asphalt mixtures should be 0.050 g/cm3. Supplementary statistical analysis shows that the measurement error of the EM densitometer and the core-sampling method is ±1.8%, and the correlation coefficient within the 95% confidence interval reaches 0.91. The results of the analysis show a convincing trend towards the implementation of non-destructive methods, such as EM density gauge, to guarantee the determination of the quality of asphalt mixtures in the field, reducing the time required to determine the quality of the asphalt mixes. The results of the analysis show a convincing trend towards the implementation of non-destructive methods, such as EM density gauge, to ensure the determination of the quality of asphalt mixtures in the field, reducing the time required to determine the quality of asphalt mixtures.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Geophysical Methods and Applications · Infrastructure Maintenance and Monitoring · Asphalt Pavement Performance Evaluation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Faculty of Civil Engineering, Universidad Michoacana de San Nicolás de Hidalgo, Morelia 58070, Mexico
Coordinatio of Roadways, Mexican Institute of Transportation (IMT), Querétaro 76703, Mexico
References (38)
Show source-provided references
1. Strategic Highway Research Program (1994). Superior Performing Asphalt Pavements (Superpave): The Product of the SHRP Asphalt Research Program, National Research Council.
2. Asphalt Institute (1995). Background of SUPERPAVE Asphalt Mixture Design and Analysis, Asphalt Institute.
3. (2017). Standard Specification for Superpave Volumetric Mix Design (Standard No. AASHTO M323).
4. AMAAC (2013). Diseño de Mezclas Asfálticas de Granulometría densa de alto Desempeño, Asociación Mexicana del Asfalto, A.C.
5. Delgado Alamilla, H. (2020). Diseño de Mezclas Asfálticas Densas en Caliente en Función del Nivel de Tránsito, IMT. Available online: https://imt.mx/archivos/Publicaciones/PublicacionTecnica/pt602.pdf.
6. Measurement of air void content in hot mix asphalts: Method and core diameter dependence10.1016/j.conbuildmat.2011.06.032 ↗
7. Asphalt pavement density measurement using non-destructive testing methods: Current practices, challenges, and future vision10.1016/j.conbuildmat.2022.128154 ↗
8. Robert, F.L., Khandal, P.S., Brown, E.R., Dah-Yinn, L., and Kennedy, T.W. (1996). Hot Mix Asphalt Materials, Mixture design and Construction, National Asphalt Pavement Association Research and Education Foundation.
9. Dai, W., Qian, G., Zhu, X., Yu, H., Shi, C., Zhang, C., Ge, J., and Xie, T. (2025, June 20). Research on Void Characteristics During Compaction of Asphalt Mixtures. Available online: https://ssrn.com/abstract=4625235.
10. Influence of Air Voids of Hot Mix Asphalt on Rutting within the Framework of Mechanistic-empirical Pavement Design10.1016/j.sbspro.2013.11.102 ↗
11. In-lab and on-site measurements of hot mix asphalt density: Convergence and divergence hypotheses10.1016/j.conbuildmat.2010.06.071 ↗
12. Predicting percent air voids content in compacted bituminous hot mixture specimens by varying the energy laboratory compaction and the bulk density assessment method10.1016/j.conbuildmat.2017.12.174 ↗
13. Effects of air voids on comprehensive laboratory performance of cold mix containing recycled asphalt pavement10.1016/j.conbuildmat.2023.130416 ↗
14. Probabilistic modeling of air void variability of asphalt mixtures in flexible pavements10.1016/j.conbuildmat.2014.02.075 ↗
15. Development of regularization methods on simulated ground-penetrating radar signals to predict thin asphalt overlay thickness10.1016/j.sigpro.2016.06.015 ↗
16. Application of regularized deconvolution technique for predicting pavement thin layer thicknesses from ground penetrating radar data10.1016/j.ndteint.2015.03.001 ↗
17. Approach to Determining In Situ Dielectric Constant of Pavements: Development and Implementation at Interstate 81 in Virginia10.3141/1806-09 ↗
18. Laboratory evaluation of electromagnetic density gauges for hot-mix asphalt mixture density measurement10.1016/j.conbuildmat.2017.09.186 ↗
19. Development of asphalt mixture density estimation model applicable to wide air void content range using ground penetrating radar10.1016/j.conbuildmat.2021.123521 ↗
20. Evaluation of New Nonnuclear Pavement Density Gauges with Data from Field Projects10.3141/1813-06 ↗
21. Mata, D., and Hanifa, K.I. (2017). Evaluation of Non-Destructive Density Determination for QA/QC Acceptance Testing: Research Project Capsule (No. 17-2B), Louisiana Transportation Research Center.
22. Estimation of density and moisture content in asphalt mixture based on dielectric property10.1016/j.conbuildmat.2021.123518 ↗
23. Integration of non-destructive testing methods to assess asphalt pavement thickness10.1016/j.ndteint.2020.102292 ↗
24. A systematic review of structural design methods and nondestructive tests for airport pavements10.1016/j.conbuildmat.2023.134543 ↗
25. (2020). Standard Method of Test for Density of In-Place Hot Mix Asphalt (HMA) Pavement by Electronic Surface Contact (Standard No. AASHTO T343-12).
26. Compactness/density assessment of newly-paved highway containing recycled asphalt pavement by means of non-nuclear method10.1016/j.conbuildmat.2017.07.075 ↗
27. Representative volume element of asphalt pavement for electromagnetic measurements
28. Determination of the compaction of hot mix asphalt using high-frequency electromagnetic methods10.1016/j.ndteint.2013.07.004 ↗
29. In situ measurements of hot-mix asphalt dielectric properties10.1016/S0963-8695(01)00010-X ↗
30. Dielectric measurement by open-ended coaxial line for hot-mix asphalt roads: From laboratory test to on-site investigation10.1016/j.ndteint.2023.102872 ↗
31. Comparison of Nuclear and Nonnuclear Pavement Density Testing Devices10.3141/2081-13 ↗
32. In-situ density measurement using GPR considering random pore distribution of asphalt pavement10.1016/j.measurement.2024.116479 ↗
33. Development and validation for in situ asphalt mixture density prediction models10.1016/j.ndteint.2011.03.002 ↗
34. TransTech Systems, Inc. (2025, June 20). Pavement Quality Indicator; In PQI 380 Operator’s Handbook. Available online: http://www.transtechsys.com/pdf/PQI380Manual.pdf.
35. TransTech Systems, Inc. (2003). Effect of Water and Temperature on Hot Mix Asphalt Density Measurement Using Electromagnetic Sensing, TransTech Systems, Inc.. Available online: https://transtechsys.com/pdf/techBriefWaterTemp.pdf.
36. Secretaría de Infraestructura, Comunicaciones y Transporte (2024). Datos Viales, Secretaría de Infraestructura, Comunicaciones y Transporte. Available online: https://www.sct.gob.mx/carreteras/direccion-general-de-servicios-tecnicos/datos-viales/.
37. Sistema Meteorológico Nacional (2024). Información Estadística Climatológica, Sistema Meteorológico Nacional. Available online: https://smn.conagua.gob.mx/tools/RESOURCES/Normales_Climatologicas/Mensuales/mich/mes16234.txt.
38. Evaluation of a non-nuclear density gauge as an alternate to destructive coring for airport asphalt acceptance testing10.1007/s42452-019-0958-6 ↗