United States Department of Transportation
i
Mitigating Reflective Cracking Through the Use of a Ductile Concrete Interlayer [Supporting Dataset]
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2019-09-01
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Abstract:Reflective cracking is considered one of the most important issues that causes premature deterioration of composite pavements. Many types of mitigation methods have been studied in the past. However, they are either not effective in delaying the reflective cracking, or they only extend the service life by a few years. To address this critical issue and significantly extend the service life of the composite pavement, in this research, a ductile interlayer made of engineered cementitious composites (ECC) was proposed. It was hypothesized that by adding a thin layer of highly ductile ECC material between the existing pavement and overlay, reflective cracking could be arrested by the ductile interlayer. This study experimentally evaluated the effectiveness of ECC as an interlayer system. A laboratory test protocol was designed to simulate repeated traffic loads to measure the fatigue performance of ECC interlayer system. The strain field and reflective cracking were monitored using digital image correlation (DIC) technique. It was found that the composite pavement specimens with ECC interlayer provided significantly higher fatigue life as compared to the control specimens without an interlayer. The failure mode also changed from single reflective crack to multiple cracks in overlaid HMA mixtures. The results indicated that ECC could be used as a potential effective interlayer system to retard or mitigate reflective cracking. The total size of the described zip file is 375 KB. Files with the .xlsx extension are Microsoft Excel spreadsheet files. These can be opened in Excel or open-source spreadsheet programs. Docx files are document files created in Microsoft Word. These files can be opened using Microsoft Word or with an open source text viewer such as Apache OpenOffice.
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Content Notes:National Transportation Library (NTL) Curation Note: As this dataset is preserved in a repository outside U.S. DOT control, as allowed by the U.S. DOT's Public Access Plan (https://doi.org/10.21949/1503647) Section 7.4.2 Data, the NTL staff has performed NO additional curation actions on this dataset. The current level of dataset documentation is the responsibility of the dataset creator. NTL staff last accessed this dataset at its repository URL on 2022-11-11. If, in the future, you have trouble accessing this dataset at the host repository, please email NTLDataCurator@dot.gov describing your problem. NTL staff will do its best to assist you at that time.
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