A Temperature-Independent Methodology for Polymer Bitumen Modification Evaluation Based on DSR Measurement
Owing to the continuous increase of traffic loads, bitumen modification has been manifested as an efficient methodology to enhance asphaltic pavement performance. Currently, the modification index, defined as the ratio of mechanical properties (e.g., complex modulus) before and after bitumen modific...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-02-01
|
| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/14/5/848 |
| _version_ | 1797474066533187584 |
|---|---|
| author | Jiantao Wu Haoan Wang Quan Liu Yangming Gao Shengjie Liu |
| author_facet | Jiantao Wu Haoan Wang Quan Liu Yangming Gao Shengjie Liu |
| author_sort | Jiantao Wu |
| collection | DOAJ |
| description | Owing to the continuous increase of traffic loads, bitumen modification has been manifested as an efficient methodology to enhance asphaltic pavement performance. Currently, the modification index, defined as the ratio of mechanical properties (e.g., complex modulus) before and after bitumen modification, is extensively adopted to evaluate the modification degree. However, bituminous materials behave as temperature-dependent, which indicates that the mechanical property varies with measured temperatures. As a result, the calculated modification index also shows temperature-dependent property, which inhibits the use of modification index. For this reason, this study introduced a method to eliminate the temperature-dependency of the modification index. In specific, a mathematical model considering the properties of modifiers was firstly established to predict the modification index-temperature curve (MI-T curve). In what follows, the temperature-dependency of modification index was analyzed to verify the proposed model on three types of modifiers, which were graphene, Styrene-Butadiene-Styrene (SBS), and Ethyl-Vinyl-Acetate (EVA), respectively. The results indicated that the developed model could efficiently predict the MI-T curves. Besides, the effective modification area (EMA) and optimal modification index (OMI) were two reasonable indicators that evaluate the bitumen modification without considering the temperature-dependency. |
| first_indexed | 2024-03-09T20:24:55Z |
| format | Article |
| id | doaj.art-125427f12edf4ecabf8f58fddb4e6ddf |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T20:24:55Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-125427f12edf4ecabf8f58fddb4e6ddf2023-11-23T23:37:14ZengMDPI AGPolymers2073-43602022-02-0114584810.3390/polym14050848A Temperature-Independent Methodology for Polymer Bitumen Modification Evaluation Based on DSR MeasurementJiantao Wu0Haoan Wang1Quan Liu2Yangming Gao3Shengjie Liu4College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, ChinaCollege of Civil and Transportation Engineering, Hohai University, Nanjing 210098, ChinaCollege of Civil and Transportation Engineering, Hohai University, Nanjing 210098, ChinaFaculty of Civil Engineering and Geosciences, Delft University of Technology, 2628 CN Delft, The NetherlandsCollege of Civil and Transportation Engineering, Hohai University, Nanjing 210098, ChinaOwing to the continuous increase of traffic loads, bitumen modification has been manifested as an efficient methodology to enhance asphaltic pavement performance. Currently, the modification index, defined as the ratio of mechanical properties (e.g., complex modulus) before and after bitumen modification, is extensively adopted to evaluate the modification degree. However, bituminous materials behave as temperature-dependent, which indicates that the mechanical property varies with measured temperatures. As a result, the calculated modification index also shows temperature-dependent property, which inhibits the use of modification index. For this reason, this study introduced a method to eliminate the temperature-dependency of the modification index. In specific, a mathematical model considering the properties of modifiers was firstly established to predict the modification index-temperature curve (MI-T curve). In what follows, the temperature-dependency of modification index was analyzed to verify the proposed model on three types of modifiers, which were graphene, Styrene-Butadiene-Styrene (SBS), and Ethyl-Vinyl-Acetate (EVA), respectively. The results indicated that the developed model could efficiently predict the MI-T curves. Besides, the effective modification area (EMA) and optimal modification index (OMI) were two reasonable indicators that evaluate the bitumen modification without considering the temperature-dependency.https://www.mdpi.com/2073-4360/14/5/848bitumen modificationtemperature-independencycomplex modulusdynamic shear rheometereffective modification areaoptimal modification index |
| spellingShingle | Jiantao Wu Haoan Wang Quan Liu Yangming Gao Shengjie Liu A Temperature-Independent Methodology for Polymer Bitumen Modification Evaluation Based on DSR Measurement Polymers bitumen modification temperature-independency complex modulus dynamic shear rheometer effective modification area optimal modification index |
| title | A Temperature-Independent Methodology for Polymer Bitumen Modification Evaluation Based on DSR Measurement |
| title_full | A Temperature-Independent Methodology for Polymer Bitumen Modification Evaluation Based on DSR Measurement |
| title_fullStr | A Temperature-Independent Methodology for Polymer Bitumen Modification Evaluation Based on DSR Measurement |
| title_full_unstemmed | A Temperature-Independent Methodology for Polymer Bitumen Modification Evaluation Based on DSR Measurement |
| title_short | A Temperature-Independent Methodology for Polymer Bitumen Modification Evaluation Based on DSR Measurement |
| title_sort | temperature independent methodology for polymer bitumen modification evaluation based on dsr measurement |
| topic | bitumen modification temperature-independency complex modulus dynamic shear rheometer effective modification area optimal modification index |
| url | https://www.mdpi.com/2073-4360/14/5/848 |
| work_keys_str_mv | AT jiantaowu atemperatureindependentmethodologyforpolymerbitumenmodificationevaluationbasedondsrmeasurement AT haoanwang atemperatureindependentmethodologyforpolymerbitumenmodificationevaluationbasedondsrmeasurement AT quanliu atemperatureindependentmethodologyforpolymerbitumenmodificationevaluationbasedondsrmeasurement AT yangminggao atemperatureindependentmethodologyforpolymerbitumenmodificationevaluationbasedondsrmeasurement AT shengjieliu atemperatureindependentmethodologyforpolymerbitumenmodificationevaluationbasedondsrmeasurement AT jiantaowu temperatureindependentmethodologyforpolymerbitumenmodificationevaluationbasedondsrmeasurement AT haoanwang temperatureindependentmethodologyforpolymerbitumenmodificationevaluationbasedondsrmeasurement AT quanliu temperatureindependentmethodologyforpolymerbitumenmodificationevaluationbasedondsrmeasurement AT yangminggao temperatureindependentmethodologyforpolymerbitumenmodificationevaluationbasedondsrmeasurement AT shengjieliu temperatureindependentmethodologyforpolymerbitumenmodificationevaluationbasedondsrmeasurement |