Rheological and mechanical consequences of reducing the curing time of cold asphalt mixtures by means of magnetic induction
Cold asphalt mixtures are more sustainable because they are manufactured at ambient temperature. However, they are much less applied because they take longer time in the curing process due to the water contained in the asphalt emulsion, which delays the opening of roads. To solve this problem, the o...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509523007532 |
| _version_ | 1797454573878640640 |
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| author | Christopher DeLaFuente-Navarro Pedro Lastra-González Miguel Ángel Calzada-Pérez Daniel Castro-Fresno |
| author_facet | Christopher DeLaFuente-Navarro Pedro Lastra-González Miguel Ángel Calzada-Pérez Daniel Castro-Fresno |
| author_sort | Christopher DeLaFuente-Navarro |
| collection | DOAJ |
| description | Cold asphalt mixtures are more sustainable because they are manufactured at ambient temperature. However, they are much less applied because they take longer time in the curing process due to the water contained in the asphalt emulsion, which delays the opening of roads. To solve this problem, the option of adding magnetic aggregates to cold asphalt mixtures and heating them by magnetic induction to evaporate the water contained in the asphalt emulsion and reduce curing time has been evaluated. For this objective, different by-products were evaluated as magnetic aggregate and the best one was selected. Four porous asphalt mixtures were then manufactured: an experimental mixture with the selected magnetic particles, a control mixture with virgin steel instead of the by-products, and two oven-cured reference mixtures without magnetic aggregate (one according to the Spanish standard and another according to the U.S. Asphalt Institute guidelines); then, the four mixtures were studied in terms of the curing process, rheological properties of bitumen and mechanical performance of samples. The experimental mixture containing industrial by-products shortened the curing time from 7 and 2 days (Spanish and U.S. Asphalt Institute standard, respectively) to only two hours; rheological and mechanical analysis proved the viability of this technology. |
| first_indexed | 2024-03-09T15:39:07Z |
| format | Article |
| id | doaj.art-8eddb5ffec8847e290f0a57e0afcecf0 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-09T15:39:07Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-8eddb5ffec8847e290f0a57e0afcecf02023-11-25T04:49:21ZengElsevierCase Studies in Construction Materials2214-50952023-12-0119e02573Rheological and mechanical consequences of reducing the curing time of cold asphalt mixtures by means of magnetic inductionChristopher DeLaFuente-Navarro0Pedro Lastra-González1Miguel Ángel Calzada-Pérez2Daniel Castro-Fresno3GITECO Research Group, Universidad de Cantabria, Avda. de Los Castros s/n., 39005 Santander, Spain; School of Civil Construction, Faculty of Engineering, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Santiago, ChileGITECO Research Group, Universidad de Cantabria, Avda. de Los Castros s/n., 39005 Santander, SpainGCS Research Group, Universidad de Cantabria, Avda. de Los Castros s/n., 39005 Santander, SpainGITECO Research Group, Universidad de Cantabria, Avda. de Los Castros s/n., 39005 Santander, Spain; Corresponding author.Cold asphalt mixtures are more sustainable because they are manufactured at ambient temperature. However, they are much less applied because they take longer time in the curing process due to the water contained in the asphalt emulsion, which delays the opening of roads. To solve this problem, the option of adding magnetic aggregates to cold asphalt mixtures and heating them by magnetic induction to evaporate the water contained in the asphalt emulsion and reduce curing time has been evaluated. For this objective, different by-products were evaluated as magnetic aggregate and the best one was selected. Four porous asphalt mixtures were then manufactured: an experimental mixture with the selected magnetic particles, a control mixture with virgin steel instead of the by-products, and two oven-cured reference mixtures without magnetic aggregate (one according to the Spanish standard and another according to the U.S. Asphalt Institute guidelines); then, the four mixtures were studied in terms of the curing process, rheological properties of bitumen and mechanical performance of samples. The experimental mixture containing industrial by-products shortened the curing time from 7 and 2 days (Spanish and U.S. Asphalt Institute standard, respectively) to only two hours; rheological and mechanical analysis proved the viability of this technology.http://www.sciencedirect.com/science/article/pii/S2214509523007532Porous asphaltCold asphalt mixtureMagnetic inductionVirgin steel fiberCuring timeRheological properties |
| spellingShingle | Christopher DeLaFuente-Navarro Pedro Lastra-González Miguel Ángel Calzada-Pérez Daniel Castro-Fresno Rheological and mechanical consequences of reducing the curing time of cold asphalt mixtures by means of magnetic induction Case Studies in Construction Materials Porous asphalt Cold asphalt mixture Magnetic induction Virgin steel fiber Curing time Rheological properties |
| title | Rheological and mechanical consequences of reducing the curing time of cold asphalt mixtures by means of magnetic induction |
| title_full | Rheological and mechanical consequences of reducing the curing time of cold asphalt mixtures by means of magnetic induction |
| title_fullStr | Rheological and mechanical consequences of reducing the curing time of cold asphalt mixtures by means of magnetic induction |
| title_full_unstemmed | Rheological and mechanical consequences of reducing the curing time of cold asphalt mixtures by means of magnetic induction |
| title_short | Rheological and mechanical consequences of reducing the curing time of cold asphalt mixtures by means of magnetic induction |
| title_sort | rheological and mechanical consequences of reducing the curing time of cold asphalt mixtures by means of magnetic induction |
| topic | Porous asphalt Cold asphalt mixture Magnetic induction Virgin steel fiber Curing time Rheological properties |
| url | http://www.sciencedirect.com/science/article/pii/S2214509523007532 |
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