Evaluation Method and Influence Law of UV-Cured Polyurethane on the Self-Healing Performance of Asphalt and Asphalt Mixtures
To explore the effect of UV-curable polyurethane (UV-PU) on the self-healing performance (SHP) of asphalt and asphalt mixtures, this article conducted research in this area of the evaluation method and influenced the law. polyurethane (PU), Styrene-Butadiene-Styrene Block Copolymer (SBS Ι-C) and 70&...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-05-01
|
| Series: | Buildings |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-5309/13/5/1277 |
| _version_ | 1797600753273012224 |
|---|---|
| author | Huaizhang Sun Wenyi Liu Yu Wang Xinyue Chang Hu Zhao Shengkang Shi Jianbao Xing Di Wu Jizhe Zhang Wengang Zhang |
| author_facet | Huaizhang Sun Wenyi Liu Yu Wang Xinyue Chang Hu Zhao Shengkang Shi Jianbao Xing Di Wu Jizhe Zhang Wengang Zhang |
| author_sort | Huaizhang Sun |
| collection | DOAJ |
| description | To explore the effect of UV-curable polyurethane (UV-PU) on the self-healing performance (SHP) of asphalt and asphalt mixtures, this article conducted research in this area of the evaluation method and influenced the law. polyurethane (PU), Styrene-Butadiene-Styrene Block Copolymer (SBS Ι-C) and 70<sup>#</sup> asphalt and asphalt mixtures were introduced as the example of comparison. A method for evaluating the SHP of asphalt, sand asphalt mixture, and medium particle asphalt mixture using the healing index (HI) as an evaluation index was proposed, and the healing performance of various materials under different healing conditions was tested and analyzed. The research results indicate that, HI based on asphalt complex shear modulus (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>H</mi><msub><mi>I</mi><mi>A</mi></msub></mrow></semantics></math></inline-formula>), HI based on sand type asphalt mixture (AC-5) flexural tensile strength (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>H</mi><msub><mi>I</mi><mrow><mi>A</mi><mi>C</mi><mtext>-</mtext><mn>5</mn></mrow></msub></mrow></semantics></math></inline-formula>), and HI based on medium grained asphalt mixture (AC-16) bending stiffness modulus (S) <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>H</mi><msub><mi>I</mi><mrow><mi>A</mi><mi>C</mi><mtext>-</mtext><mn>16</mn></mrow></msub></mrow></semantics></math></inline-formula> can effectively reflect the SHP of asphalt, AC-5, and AC-16 under different healing conditions, and can be used as an evaluation indicator for SHP. The asphalt SHP is related to the asphalt type and the degree of initial loss and is highly correlated with the healing time. Compared to other asphalt types, the sensitivity of UV-PU or PU modified asphalt to initial loss is lower than that of SBS Ι-C modified asphalt, but higher than 70<sup>#</sup> asphalt. Under the same light healing time and initial degree of loss, the SHP of UV-PU modified asphalt AC-5 and AC-16 is significantly superior to other types of asphalt mixtures. Compared to asphalt, the self-healing time of AC-5 grade AC-16 is longer. The SHP of AC-16 is highly correlated with the loss degree associated with the initial S. The larger the initial loss degree of the S, the greater the loss rate of the HI. |
| first_indexed | 2024-03-11T03:52:21Z |
| format | Article |
| id | doaj.art-1188278a4a5f468cb9b92aa08f3ad3be |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-11T03:52:21Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-1188278a4a5f468cb9b92aa08f3ad3be2023-11-18T00:46:03ZengMDPI AGBuildings2075-53092023-05-01135127710.3390/buildings13051277Evaluation Method and Influence Law of UV-Cured Polyurethane on the Self-Healing Performance of Asphalt and Asphalt MixturesHuaizhang Sun0Wenyi Liu1Yu Wang2Xinyue Chang3Hu Zhao4Shengkang Shi5Jianbao Xing6Di Wu7Jizhe Zhang8Wengang Zhang9Tianjin South Railway Station Technology Business District Development Co., Ltd., Tianjin 300380, ChinaTianjin South Railway Station Technology Business District Development Co., Ltd., Tianjin 300380, ChinaTianjin South Railway Station Technology Business District Development Co., Ltd., Tianjin 300380, ChinaTianjin Engineering & Construction Corporation, Tianjin 300384, ChinaTianjin South Railway Station Technology Business District Development Co., Ltd., Tianjin 300380, ChinaTianjin South Railway Station Technology Business District Development Co., Ltd., Tianjin 300380, ChinaHaiwei Engineering Construction Co., Ltd. of FHEC of CCCC, Beijing 101119, ChinaHaiwei Engineering Construction Co., Ltd. of FHEC of CCCC, Beijing 101119, ChinaSchool of Qilu Transportation, Shandong University, Jinan 250061, ChinaSchool of Civil Engineering and Geomatics, Shandong University of Technology, Zibo 255049, ChinaTo explore the effect of UV-curable polyurethane (UV-PU) on the self-healing performance (SHP) of asphalt and asphalt mixtures, this article conducted research in this area of the evaluation method and influenced the law. polyurethane (PU), Styrene-Butadiene-Styrene Block Copolymer (SBS Ι-C) and 70<sup>#</sup> asphalt and asphalt mixtures were introduced as the example of comparison. A method for evaluating the SHP of asphalt, sand asphalt mixture, and medium particle asphalt mixture using the healing index (HI) as an evaluation index was proposed, and the healing performance of various materials under different healing conditions was tested and analyzed. The research results indicate that, HI based on asphalt complex shear modulus (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>H</mi><msub><mi>I</mi><mi>A</mi></msub></mrow></semantics></math></inline-formula>), HI based on sand type asphalt mixture (AC-5) flexural tensile strength (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>H</mi><msub><mi>I</mi><mrow><mi>A</mi><mi>C</mi><mtext>-</mtext><mn>5</mn></mrow></msub></mrow></semantics></math></inline-formula>), and HI based on medium grained asphalt mixture (AC-16) bending stiffness modulus (S) <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>H</mi><msub><mi>I</mi><mrow><mi>A</mi><mi>C</mi><mtext>-</mtext><mn>16</mn></mrow></msub></mrow></semantics></math></inline-formula> can effectively reflect the SHP of asphalt, AC-5, and AC-16 under different healing conditions, and can be used as an evaluation indicator for SHP. The asphalt SHP is related to the asphalt type and the degree of initial loss and is highly correlated with the healing time. Compared to other asphalt types, the sensitivity of UV-PU or PU modified asphalt to initial loss is lower than that of SBS Ι-C modified asphalt, but higher than 70<sup>#</sup> asphalt. Under the same light healing time and initial degree of loss, the SHP of UV-PU modified asphalt AC-5 and AC-16 is significantly superior to other types of asphalt mixtures. Compared to asphalt, the self-healing time of AC-5 grade AC-16 is longer. The SHP of AC-16 is highly correlated with the loss degree associated with the initial S. The larger the initial loss degree of the S, the greater the loss rate of the HI.https://www.mdpi.com/2075-5309/13/5/1277UV-PU modified asphaltself-healing performancehealing indexcomplex shear modulusbending stiffness modulus |
| spellingShingle | Huaizhang Sun Wenyi Liu Yu Wang Xinyue Chang Hu Zhao Shengkang Shi Jianbao Xing Di Wu Jizhe Zhang Wengang Zhang Evaluation Method and Influence Law of UV-Cured Polyurethane on the Self-Healing Performance of Asphalt and Asphalt Mixtures Buildings UV-PU modified asphalt self-healing performance healing index complex shear modulus bending stiffness modulus |
| title | Evaluation Method and Influence Law of UV-Cured Polyurethane on the Self-Healing Performance of Asphalt and Asphalt Mixtures |
| title_full | Evaluation Method and Influence Law of UV-Cured Polyurethane on the Self-Healing Performance of Asphalt and Asphalt Mixtures |
| title_fullStr | Evaluation Method and Influence Law of UV-Cured Polyurethane on the Self-Healing Performance of Asphalt and Asphalt Mixtures |
| title_full_unstemmed | Evaluation Method and Influence Law of UV-Cured Polyurethane on the Self-Healing Performance of Asphalt and Asphalt Mixtures |
| title_short | Evaluation Method and Influence Law of UV-Cured Polyurethane on the Self-Healing Performance of Asphalt and Asphalt Mixtures |
| title_sort | evaluation method and influence law of uv cured polyurethane on the self healing performance of asphalt and asphalt mixtures |
| topic | UV-PU modified asphalt self-healing performance healing index complex shear modulus bending stiffness modulus |
| url | https://www.mdpi.com/2075-5309/13/5/1277 |
| work_keys_str_mv | AT huaizhangsun evaluationmethodandinfluencelawofuvcuredpolyurethaneontheselfhealingperformanceofasphaltandasphaltmixtures AT wenyiliu evaluationmethodandinfluencelawofuvcuredpolyurethaneontheselfhealingperformanceofasphaltandasphaltmixtures AT yuwang evaluationmethodandinfluencelawofuvcuredpolyurethaneontheselfhealingperformanceofasphaltandasphaltmixtures AT xinyuechang evaluationmethodandinfluencelawofuvcuredpolyurethaneontheselfhealingperformanceofasphaltandasphaltmixtures AT huzhao evaluationmethodandinfluencelawofuvcuredpolyurethaneontheselfhealingperformanceofasphaltandasphaltmixtures AT shengkangshi evaluationmethodandinfluencelawofuvcuredpolyurethaneontheselfhealingperformanceofasphaltandasphaltmixtures AT jianbaoxing evaluationmethodandinfluencelawofuvcuredpolyurethaneontheselfhealingperformanceofasphaltandasphaltmixtures AT diwu evaluationmethodandinfluencelawofuvcuredpolyurethaneontheselfhealingperformanceofasphaltandasphaltmixtures AT jizhezhang evaluationmethodandinfluencelawofuvcuredpolyurethaneontheselfhealingperformanceofasphaltandasphaltmixtures AT wengangzhang evaluationmethodandinfluencelawofuvcuredpolyurethaneontheselfhealingperformanceofasphaltandasphaltmixtures |