Influence of Reed Fiber Length and Dosage on the Properties of Reed-Fiber-Modified Bitumen and Bituminous Mortar
In order to explore the feasibility and efficacy of reed-fiber-modified bitumen (RFMB), three lengths and three dosages of reed fibers were selected to modify bitumen and bituminous mortar, while the physicochemical properties of RFMB and RFMB mortar were analyzed. In this work, FTIR spectroscopy wa...
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MDPI AG
2024-09-01
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| author | Huikun Chen Junyan Zhang Dongyu Niu Xueyan Liu Peng Lin |
| author_facet | Huikun Chen Junyan Zhang Dongyu Niu Xueyan Liu Peng Lin |
| author_sort | Huikun Chen |
| collection | DOAJ |
| description | In order to explore the feasibility and efficacy of reed-fiber-modified bitumen (RFMB), three lengths and three dosages of reed fibers were selected to modify bitumen and bituminous mortar, while the physicochemical properties of RFMB and RFMB mortar were analyzed. In this work, FTIR spectroscopy was employed to characterize the chemical impact of fiber on bitumen. The viscidity and rheology of RFMB and the tensile strength of RFMB mortar were evaluated using a Brookfield viscometer, dynamic shear rheometer, and monotonic tensile test. The results showed that adding fibers primarily affects the physical structure rather than the chemical composition of bitumen, confirmed by FTIR spectroscopy. RFMB viscosity increased with higher fiber dosage and fiber length. Rheological evaluations showed an enhanced complex shear modulus for RFMB, suggesting improved performance at higher temperatures but increased stiffness at lower temperatures, with the latter indicating reduced flexibility. RFMB also demonstrated superior fatigue and rutting resistance, albeit with compromised stress sensitivity. Tensile tests on RFMB mortar highlighted significant improvements, especially with longer fibers, while shorter 0.4 mm fibers showed modest reinforcement effects, possibly due to uneven distribution during sample preparation. |
| format | Article |
| id | doaj-art-a71d34f870ff41d6b51b5fb87c130a44 |
| institution | OA Journals |
| issn | 2075-5309 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | MDPI AG |
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| series | Buildings |
| spelling | doaj-art-a71d34f870ff41d6b51b5fb87c130a442025-08-20T01:56:01ZengMDPI AGBuildings2075-53092024-09-01149274910.3390/buildings14092749Influence of Reed Fiber Length and Dosage on the Properties of Reed-Fiber-Modified Bitumen and Bituminous MortarHuikun Chen0Junyan Zhang1Dongyu Niu2Xueyan Liu3Peng Lin4School of Materials Science and Engineering, Chang’an University, Xi’an 710061, ChinaShaanxi Construction Engineering Eighth Construction Group Co., Ltd., Xi’an 710061, ChinaSchool of Materials Science and Engineering, Chang’an University, Xi’an 710061, ChinaSection of Pavement Engineering, Department of Engineering Structures, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Stevinweg 1, 2628 CN Delft, The NetherlandsMinistry of Infrastructure and Water Management (Rijkswaterstaat), Griffioenlaan 2, 3526 LA Utrecht, The NetherlandsIn order to explore the feasibility and efficacy of reed-fiber-modified bitumen (RFMB), three lengths and three dosages of reed fibers were selected to modify bitumen and bituminous mortar, while the physicochemical properties of RFMB and RFMB mortar were analyzed. In this work, FTIR spectroscopy was employed to characterize the chemical impact of fiber on bitumen. The viscidity and rheology of RFMB and the tensile strength of RFMB mortar were evaluated using a Brookfield viscometer, dynamic shear rheometer, and monotonic tensile test. The results showed that adding fibers primarily affects the physical structure rather than the chemical composition of bitumen, confirmed by FTIR spectroscopy. RFMB viscosity increased with higher fiber dosage and fiber length. Rheological evaluations showed an enhanced complex shear modulus for RFMB, suggesting improved performance at higher temperatures but increased stiffness at lower temperatures, with the latter indicating reduced flexibility. RFMB also demonstrated superior fatigue and rutting resistance, albeit with compromised stress sensitivity. Tensile tests on RFMB mortar highlighted significant improvements, especially with longer fibers, while shorter 0.4 mm fibers showed modest reinforcement effects, possibly due to uneven distribution during sample preparation.https://www.mdpi.com/2075-5309/14/9/2749bitumenreed fibermortarrheologicalperformance characterization |
| spellingShingle | Huikun Chen Junyan Zhang Dongyu Niu Xueyan Liu Peng Lin Influence of Reed Fiber Length and Dosage on the Properties of Reed-Fiber-Modified Bitumen and Bituminous Mortar Buildings bitumen reed fiber mortar rheological performance characterization |
| title | Influence of Reed Fiber Length and Dosage on the Properties of Reed-Fiber-Modified Bitumen and Bituminous Mortar |
| title_full | Influence of Reed Fiber Length and Dosage on the Properties of Reed-Fiber-Modified Bitumen and Bituminous Mortar |
| title_fullStr | Influence of Reed Fiber Length and Dosage on the Properties of Reed-Fiber-Modified Bitumen and Bituminous Mortar |
| title_full_unstemmed | Influence of Reed Fiber Length and Dosage on the Properties of Reed-Fiber-Modified Bitumen and Bituminous Mortar |
| title_short | Influence of Reed Fiber Length and Dosage on the Properties of Reed-Fiber-Modified Bitumen and Bituminous Mortar |
| title_sort | influence of reed fiber length and dosage on the properties of reed fiber modified bitumen and bituminous mortar |
| topic | bitumen reed fiber mortar rheological performance characterization |
| url | https://www.mdpi.com/2075-5309/14/9/2749 |
| work_keys_str_mv | AT huikunchen influenceofreedfiberlengthanddosageonthepropertiesofreedfibermodifiedbitumenandbituminousmortar AT junyanzhang influenceofreedfiberlengthanddosageonthepropertiesofreedfibermodifiedbitumenandbituminousmortar AT dongyuniu influenceofreedfiberlengthanddosageonthepropertiesofreedfibermodifiedbitumenandbituminousmortar AT xueyanliu influenceofreedfiberlengthanddosageonthepropertiesofreedfibermodifiedbitumenandbituminousmortar AT penglin influenceofreedfiberlengthanddosageonthepropertiesofreedfibermodifiedbitumenandbituminousmortar |