Version 1
: Received: 1 December 2022 / Approved: 5 December 2022 / Online: 5 December 2022 (03:26:31 CET)
How to cite:
Sivagnanasuntharam, S.; Sounthararajah, A.; Kodikara, J. In-situ Spot Test Measurements and Icmvs for Asphalt Pavement: Lack of Correlations and the Effect of Underlying Support. Preprints2022, 2022120058. https://doi.org/10.20944/preprints202212.0058.v1
Sivagnanasuntharam, S.; Sounthararajah, A.; Kodikara, J. In-situ Spot Test Measurements and Icmvs for Asphalt Pavement: Lack of Correlations and the Effect of Underlying Support. Preprints 2022, 2022120058. https://doi.org/10.20944/preprints202212.0058.v1
Sivagnanasuntharam, S.; Sounthararajah, A.; Kodikara, J. In-situ Spot Test Measurements and Icmvs for Asphalt Pavement: Lack of Correlations and the Effect of Underlying Support. Preprints2022, 2022120058. https://doi.org/10.20944/preprints202212.0058.v1
APA Style
Sivagnanasuntharam, S., Sounthararajah, A., & Kodikara, J. (2022). In-situ Spot Test Measurements and Icmvs for Asphalt Pavement: Lack of Correlations and the Effect of Underlying Support. Preprints. https://doi.org/10.20944/preprints202212.0058.v1
Chicago/Turabian Style
Sivagnanasuntharam, S., Arooran Sounthararajah and Jayantha Kodikara. 2022 "In-situ Spot Test Measurements and Icmvs for Asphalt Pavement: Lack of Correlations and the Effect of Underlying Support" Preprints. https://doi.org/10.20944/preprints202212.0058.v1
Abstract
The main aim of this paper is to analyse the performance of different intelligent compaction measurement values (ICMVs) and compare them with spot test measurements for asphalt pavement. To accomplish this, a two-layer asphalt testbed was constructed using an instrumented double-drum roller. All ICMVs [compaction meter value ( ), compaction control value ( ), roller-integrated stiffness ( ), and vibratory modulus ( )] were calculated using the same accelerometer data collected during the construction of the asphalt testbed. A novel method using the cross-correlation technique was developed to estimate the phase lag between the excitation force of the roller drum and the ground reaction, which is required for and calculations. The analysis of ICMV data showed a strong correlation between and , while and demonstrated a strong correlation only when double jump of the roller drum did not occur. Further, none of the ICMVs recorded during the last roller pass of asphalt compaction showed an acceptable correlation with asphalt densities [measured using a non-nuclear density gauge (NNDG)], mainly due to the influences of the underlying support and asphalt temperature on ICMVs. A correction method to decouple the influence of underlying support on was developed and validated using existing data from the literature. The applicability of this method for different field scenarios was demonstrated using numerical modelling.
Keywords
Intelligent compaction; Asphalt pavements; Intelligent compaction measurement value; Under-lying support correction; Phase angle; Non-nuclear density gauge; Lightweight deflectometer
Subject
Engineering, Civil Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
