A Study on Intelligent Compacting and In-Place Asphalt Density

Chang, George K.; Xu, Qinwu; Rutledge, Jennifer L.; Garber, Sabrina I.; The Transtec Group, Inc.

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A Study on Intelligent Compacting and In-Place Asphalt Density

2014-12-01
By Chang, George K. ; Xu, Qinwu ; Rutledge, Jennifer L. ; ...

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Creators:

Chang, George K. ; Xu, Qinwu ; Rutledge, Jennifer L. ; Garber, Sabrina I.

Chang, George K. ; Xu, Qinwu ; Rutledge, Jennifer L. ; Garber, Sabrina I. Less -
Corporate Creators:

The Transtec Group, Inc.
Contributors:

Gallivan, Victor (Lee) ; Duval, Richard

Gallivan, Victor (Lee) ; Duval, Richard Less -
Corporate Contributors:

United States. Federal Highway Administration. Office of Pavement Technology
Subject/TRT Terms:

[+]

Asphalt Pavements Compaction In Place Density
Publication/ Report Number:

FHWA-HIF-14-017
Resource Type:

Tech Report
Geographical Coverage:

United States
Contracting Officer:

Gallivan, Victor;Duval, Richard
Corporate Publisher:

United States. Federal Highway Administration. Office of Pavement Technology
Abstract:

Intelligent Compaction (IC) technology is an innovation of roller technology that can be used to improve quality control (QC) of the asphalt pavement compaction process. It is increasingly used by the asphalt paving industry in the US. Currently, IC is being adopted by many federal and state highway agencies. Asphalt IC technology uses accelerometer - based methods to collect IC measurement values (ICMV) that relate to the stiffness of the compacted materials. Across the US, in - place asphalt density measurement is still the de facto method for acceptance as the in - place densities relate to long - term performance of asphalt pavements. Past limited research has not been successful in finding a strong correlation between ICMV and measured in - place density. To accelerate the implementation of IC technology, it is essential to further study the relationship between IC measured data and core density to assess the use of IC measurements beyond QC. This project includes extensive field studies and data analysis and modeling in order to investigate the relationship between ICMV and other IC measurements (such as pass counts, temperatures, vibration frequencies/amplitudes, direction, speed, etc.) and asphalt in - place densities. The pass - by - pass ICMV correlate well with nu clear density gauge measurements during breakdown compaction. As the final ICMV does not correlate well with core densities, the final ICMV data is not recommended to replace cores for acceptance. A n IC - based nonlinear panel data model was also developed to reasonably predict asphalt in - place density as an enhanced QC tool . Recommendation are also provided regarding future research and implementation to maximize the potential benefits of IC.
Format:

PDF
Funding:

DTFH61-07-C-0032
Collection(s):

Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:df14e02341ece1223d9cd3c4275ba5ad1d5b0f4e994b5200b19b978b29afd031
Download URL:

https://rosap.ntl.bts.gov/view/dot/38554/dot_38554_DS1.pdf
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A Study on Intelligent Compacting and In-Place Asphalt Density

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