{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,30]],"date-time":"2026-05-30T04:29:04Z","timestamp":1780115344675,"version":"3.54.0"},"reference-count":37,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2023,3,27]],"date-time":"2023-03-27T00:00:00Z","timestamp":1679875200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Hunan Tieyuan Civil Engineering Testing Co., Ltd.","award":["HNTY2021K10"],"award-info":[{"award-number":["HNTY2021K10"]}]},{"name":"Hunan Tieyuan Civil Engineering Testing Co., Ltd.","award":["2021-Category B-04"],"award-info":[{"award-number":["2021-Category B-04"]}]},{"name":"China Railway Development and Investment Group Co., Ltd.","award":["HNTY2021K10"],"award-info":[{"award-number":["HNTY2021K10"]}]},{"name":"China Railway Development and Investment Group Co., Ltd.","award":["2021-Category B-04"],"award-info":[{"award-number":["2021-Category B-04"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Modified polyurethane concrete (MPUC) is a new material for steel deck pavements. In service, the pavement is often cracked due to excessive tensile stress caused by temperature changes. In order to study the tensile properties of MPUC in the diurnal temperature range of steel decks, uniaxial tensile tests of MPUC were carried out at five temperatures. Three kinds of specimens and a novel fixture were designed and fabricated to compare the results of four different tensile test methods. The deformation of the specimen was collected synchronously by two methods: pasting strain gauge and digital image correlation (DIC) technique. Based on the experiment, the tensile mechanical properties, failure modes, and constitutive relations of MPUC were studied under the effect of temperature. The research results show that the novel fixture can avoid stress concentration. By observing the fracture surface of the specimens, the bonding performance is great between the binder and the aggregate at different temperatures. The tensile strength and elastic modulus of MPUC decrease with increasing temperatures, while the fracture strain, and fracture energy increase with increasing temperatures. The formulas of temperature-dependent tensile strength, fracture strain, and elastic modulus of MPUC were established, and the constitutive relationship of MPUC is further constructed in the rising stage under uniaxial tension. The calculation results show good agreement with experimental ones.<\/jats:p>","DOI":"10.3390\/ma16072653","type":"journal-article","created":{"date-parts":[[2023,3,28]],"date-time":"2023-03-28T01:41:34Z","timestamp":1679967694000},"page":"2653","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Study on Temperature-Dependent Uniaxial Tensile Tests and Constitutive Relationship of Modified Polyurethane Concrete"],"prefix":"10.3390","volume":"16","author":[{"given":"Yanqun","family":"Han","sequence":"first","affiliation":[{"name":"School of Civil Engineering, Central South University, Changsha 410075, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4521-7401","authenticated-orcid":false,"given":"Xiandong","family":"Meng","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Central South University, Changsha 410075, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4591-2172","authenticated-orcid":false,"given":"Fan","family":"Feng","sequence":"additional","affiliation":[{"name":"School of Architectural Engineering, Hunan Institute of Engineering, Xiangtan 411104, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xuming","family":"Song","sequence":"additional","affiliation":[{"name":"Hunan Tieyuan Civil Engineering Testing Co., Ltd., Changsha 410004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5764-3758","authenticated-orcid":false,"given":"Fanglin","family":"Huang","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Central South University, Changsha 410075, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weibin","family":"Wen","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Central South University, Changsha 410075, China"},{"name":"Hunan Tieyuan Civil Engineering Testing Co., Ltd., Changsha 410004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,3,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"5890945","DOI":"10.1155\/2020\/5890945","article-title":"Feasibility Evaluation of a Long-Life Asphalt Pavement for Steel Bridge Deck","volume":"2020","author":"Chen","year":"2020","journal-title":"Adv. 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