{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,12]],"date-time":"2026-07-12T05:07:17Z","timestamp":1783832837036,"version":"3.55.0"},"reference-count":32,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2026,7,10]],"date-time":"2026-07-10T00:00:00Z","timestamp":1783641600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>To investigate the reinforcement law and internal mechanism of fiber seals on the interlayer bonding performance of asphalt pavement, the SMA-13\/AC-20 pavement structure was taken as the object to reveal the effects of fiber type (basalt fiber and glass fiber), dosage (0, 80, 100, and 120 g\/m2), and length (3, 5, 7, and 9 cm). The control variable method and indoor direct shear and tensile tests were used to optimize the parameters. The results indicate that the optimal parameter combination is a fiber dosage of 100 g\/m2 and a length of 5 cm. In this case, the reinforcement effect of basalt fiber is significantly superior to that of glass fiber, and the interlayer shear and tensile strengths reach 1.47 MPa and 0.793 MPa, respectively, which are 41.3% and 37.2% higher than those of the group without fiber. By forming a three-dimensional network structure, fibers exert a synergistic effect of reinforcement, bridging, and friction enhancement, constructing a robust interlayer composite system. This study provides experimental support for material optimization and multi-parameter collaborative design of a fiber seal coat.<\/jats:p>","DOI":"10.3390\/ma19142974","type":"journal-article","created":{"date-parts":[[2026,7,10]],"date-time":"2026-07-10T09:46:47Z","timestamp":1783676807000},"page":"2974","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Research on the Mechanism of Asphalt Pavement Interlayer Bonding Reinforcement Based on Fiber Seal Coat"],"prefix":"10.3390","volume":"19","author":[{"given":"Yu","family":"Wu","sequence":"first","affiliation":[{"name":"Department of Road and Bridge Engineering, Sichuan Jiaotong Polytechnic University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yubi","family":"Zhao","sequence":"additional","affiliation":[{"name":"Department of Road and Bridge Engineering, Sichuan Jiaotong Polytechnic University, Chengdu 611130, China"},{"name":"School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhenhua","family":"Zhou","sequence":"additional","affiliation":[{"name":"School of Architecture Engineering and Planning, Jiujiang University, Jiujiang 332005, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2188-3685","authenticated-orcid":false,"given":"Hongzhi","family":"He","sequence":"additional","affiliation":[{"name":"School of Architecture Engineering, Sichuan University of Arts and Science, Dazhou 635000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,7,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"280","DOI":"10.1080\/10298436.2018.1461870","article-title":"Effects of layer interface conditions on top-down fatigue cracking of asphalt pavements","volume":"21","author":"Alae","year":"2020","journal-title":"Int. J. Pavement Eng."},{"key":"ref_2","unstructured":"Vaitkus, A., \u010cygas, D., Laurinavi\u010dius, A., Vorobjovas, V., and Kleizien\u0117, R. (2017, January 7\u20139). Research of Asphalt Layers Bonding in Lithuanian Pavement. Proceedings of the 2nd International Conference on Road and Rail Infrastructure, Dubrovnik, Croatia."},{"key":"ref_3","first-page":"55","article-title":"Effect of SBR Modified Emulsified Asphalt on Bonding Effect Between Pavement Layers","volume":"48","author":"Qingxia","year":"2019","journal-title":"J. Hebei Univ. Technol."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"04017102","DOI":"10.1061\/(ASCE)MT.1943-5533.0001952","article-title":"Characterization of interface bonding in asphalt pavement layers based on direct shear tests with vertical loading","volume":"29","author":"Ai","year":"2017","journal-title":"J. Mater. Civ. Eng."},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Lei, J., Zhao, F., Wang, Y., and Su, H. (2024). Optimization design of fiber rubber asphalt gravel sealing layer based on fatigue crack resistance test. PLoS ONE, 19.","DOI":"10.1371\/journal.pone.0297090"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"138594","DOI":"10.1016\/j.conbuildmat.2024.138594","article-title":"Six-synchronous construction technology-based fiber stone seal of road pavements: Design, optimization, and performance evaluation","volume":"450","author":"Yuan","year":"2024","journal-title":"Constr. Build. Mater."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"136731","DOI":"10.1016\/j.conbuildmat.2024.136731","article-title":"Development and evaluation of fiber-enhanced RAP interlayer for HMA overlay treatment","volume":"434","author":"Guan","year":"2024","journal-title":"Constr. Build. Mater."},{"key":"ref_8","unstructured":"Lin, B. (2019). Mechanical Behavior and Application Research of Glass Fiber Asphalt Macadam Seal Coat. [Master\u2019s Thesis, Chang\u2019an University]."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"04014041","DOI":"10.1061\/(ASCE)MT.1943-5533.0001074","article-title":"Quantifying the Effects of Chip Seal Volumetrics on the Occurrence of Pavement Flushing","volume":"26","author":"Kodippily","year":"2014","journal-title":"J. Mater. Civ. Eng."},{"key":"ref_10","first-page":"440","article-title":"Bonding Property and Evaluation of Basalt Fiber Asphalt Macadam Seal Coat","volume":"22","author":"Liang","year":"2019","journal-title":"J. Build. Mater."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"S672","DOI":"10.1080\/14680629.2021.1906304","article-title":"Development of a rational design procedure based on fatigue characterisation and environmental evaluations of asphalt pavement reinforced with glass fibre grid","volume":"22","author":"Nguyen","year":"2021","journal-title":"Road Mater. Pavement Des."},{"key":"ref_12","first-page":"1","article-title":"Interlayer Bonding Performance of Asphalt Pavement Glass Fiber Rubber Modified Asphalt Crushed Stone Sealing","volume":"39","author":"Yan","year":"2022","journal-title":"J. Highw. Transp. Res. Dev."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"417","DOI":"10.1016\/j.conbuildmat.2017.03.064","article-title":"Performance and Rational Content of Basalt Fiber Asphalt Chip Coat","volume":"20","author":"Zhang","year":"2017","journal-title":"J. Build. Mater."},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"He, J., Chen, W., Zhang, B., Yu, J., and Liu, H. (2021). The Mechanical Properties and Damage Evolution of UHPC Reinforced with Glass Fibers and High-Performance Polypropylene Fibers. Materials, 14.","DOI":"10.3390\/ma14092455"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"118387","DOI":"10.1016\/j.conbuildmat.2020.118387","article-title":"Effect of high temperature on the strength and thermal conductivity of glass fiber concrete","volume":"245","author":"Wang","year":"2020","journal-title":"Constr. Build. Mater."},{"key":"ref_16","unstructured":"Technical Specification for Fiber Asphalt Aggregate Seal Coat (Standard No. DB61\/T 1233-2019)."},{"key":"ref_17","unstructured":"Technical Guidelines for the Design and Construction of Fiber Seal Coating on Highway Asphalt Pavements (Standard No. DB22\/T 3144-2020)."},{"key":"ref_18","first-page":"234","article-title":"Impact of Chip Seal and Glass Fiber on the Bonding Performance of Composite Modified Asphalt Waterproof Adhesive Layer","volume":"41","author":"Wang","year":"2023","journal-title":"J. Munic. Technol."},{"key":"ref_19","unstructured":"Technical Specification for Construction of Highway Asphalt Pavement (Standard No. JTG F40-2004)."},{"key":"ref_20","unstructured":"Chopped Basalt Fiber for Cement Concrete and Mortar (Standard No. GB\/T 23265-2023)."},{"key":"ref_21","unstructured":"Glass Fiber Mats\u2014Chopped Strand and Continuous Filament Mats (Standard No. GB\/T 17470-2007)."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"146148","DOI":"10.1016\/j.conbuildmat.2026.146148","article-title":"The adhesion-friction transition mechanism in asphalt pavement interlayers","volume":"521","author":"He","year":"2026","journal-title":"Constr. Build. Mater."},{"key":"ref_23","first-page":"22","article-title":"Analysis of Bonding Strength Characteristics between the Reinforced Base and Surface Layer of Asphalt Pavement","volume":"42","author":"He","year":"2022","journal-title":"J. Chang. Univ."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"1155","DOI":"10.1080\/09276440.2024.2330787","article-title":"Role of fiber-reinforced chip seal interlayers in asphalt pavement bonding strength","volume":"31","author":"Rahman","year":"2024","journal-title":"Compos. Interfaces"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"1269","DOI":"10.1520\/JTE20160186","article-title":"Laboratory performance evaluation of reinforced basalt fiber in sealing asphalt chips","volume":"46","author":"Gu","year":"2018","journal-title":"J. Test. Eval."},{"key":"ref_26","unstructured":"Tan, J. (2023). Research on the Adaptability of Basalt Fiber in Xinjiang Asphalt Pavement Engineering. [Master\u2019s Thesis, Xinjiang Agricultural University]."},{"key":"ref_27","unstructured":"Huang, X. (2020). Study on Fiber Sealing Performance and Finite Element Simulation Based on Stress Absorption Principle. [Master\u2019s Thesis, Chongqing Jiaotong University]."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"2047","DOI":"10.1080\/01694243.2021.1871813","article-title":"Performance research of fiber-reinforced asphalt rubber as a stress-absorbing membrane interlayer","volume":"35","author":"Zeng","year":"2021","journal-title":"J. Adhes. Sci. Technol."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"918","DOI":"10.1016\/j.conbuildmat.2015.10.145","article-title":"Glass fiber reinforced asphalt membrane for interlayer bonding between asphalt overlay and concrete pavement","volume":"101","author":"Ge","year":"2015","journal-title":"Constr. Build. Mater."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"04021494","DOI":"10.1061\/(ASCE)MT.1943-5533.0004128","article-title":"Evaluation of optimum fiber length in fiber-reinforced asphalt concrete","volume":"34","author":"Noorvand","year":"2022","journal-title":"J. Mater. Civ. Eng."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"107","DOI":"10.1016\/j.conbuildmat.2018.05.192","article-title":"Effect of basalt fiber surface silane coupling agent coating on fiber-reinforced asphalt: From macro-mechanical performance to micro-interfacial mechanism","volume":"179","author":"Xiang","year":"2018","journal-title":"Constr. Build. Mater."},{"key":"ref_32","first-page":"230","article-title":"Impervious performance of fiber asphalt chip seal under hydrodynamic pressure","volume":"39","author":"Qin","year":"2018","journal-title":"J. Jiangsu Univ."}],"container-title":["Materials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1996-1944\/19\/14\/2974\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,7,12]],"date-time":"2026-07-12T04:14:58Z","timestamp":1783829698000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1996-1944\/19\/14\/2974"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,7,10]]},"references-count":32,"journal-issue":{"issue":"14","published-online":{"date-parts":[[2026,7]]}},"alternative-id":["ma19142974"],"URL":"https:\/\/doi.org\/10.3390\/ma19142974","relation":{},"ISSN":["1996-1944"],"issn-type":[{"value":"1996-1944","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,7,10]]}}}