{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,2]],"date-time":"2025-12-02T06:19:17Z","timestamp":1764656357345,"version":"build-2065373602"},"reference-count":25,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2025,8,19]],"date-time":"2025-08-19T00:00:00Z","timestamp":1755561600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003086","name":"Basque Government","doi-asserted-by":"publisher","award":["IT1726-22","101058236","101091792"],"award-info":[{"award-number":["IT1726-22","101058236","101091792"]}],"id":[{"id":"10.13039\/501100003086","id-type":"DOI","asserted-by":"publisher"}]},{"name":"European Union\u2019s Horizon Europe research and innovation programme","award":["IT1726-22","101058236","101091792"],"award-info":[{"award-number":["IT1726-22","101058236","101091792"]}]},{"name":"HORIZON-CL4-2022-TWIN-TRANSITION-01 programme","award":["IT1726-22","101058236","101091792"],"award-info":[{"award-number":["IT1726-22","101058236","101091792"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Robotics"],"abstract":"<jats:p>The construction industry faces significant challenges due to the physically demanding and hazardous nature of tasks such as manual filling of expansion joints with mastic. Automating mastic filling presents additional difficulties due to the variability of mastic density with temperature, which creates a constantly changing environment that requires adaptive control strategies to ensure consistent application quality. This pilot study focuses on testing a new human\u2013robot collaborative approach for automating the mastic application in concrete expansion joints. The system learns the task from demonstrations performed by expert construction operators teleoperating the robot. This study evaluates the usability, efficiency, and adoption of robotic assistance in joint-filling tasks compared to traditional manual methods. The study analyzes execution time and joint quality measurements, psychophysiological signal analysis, and post-task user feedback. This multi-source approach enables a comprehensive assessment of task performance and both objective and subjective evaluations of technology acceptance. The findings underscore the effectiveness of automated systems in improving safety and productivity on construction sites, while also identifying key areas for technological improvement.<\/jats:p>","DOI":"10.3390\/robotics14080114","type":"journal-article","created":{"date-parts":[[2025,8,19]],"date-time":"2025-08-19T10:59:01Z","timestamp":1755601141000},"page":"114","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Robot Learning from Teleoperated Demonstrations: A Pilot Study Towards Automating Mastic Deposition in Construction Sites"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2143-6359","authenticated-orcid":false,"given":"Irati","family":"Rasines","sequence":"first","affiliation":[{"name":"TECNALIA, Basque Research and Technology Alliance (BRTA), Arteaga Auzoa 25, 48160 Derio, Spain"},{"name":"Department of Automatic Control and Systems Engineering, Bilbao School of Engineering, University of the Basque Country (UPV\/EHU), Plaza Ingeniero Torres Quevedo, 1, 48013 Bilbao, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6481-7536","authenticated-orcid":false,"given":"Erlantz","family":"Loizaga","sequence":"additional","affiliation":[{"name":"TECNALIA, Basque Research and Technology Alliance (BRTA), Arteaga Auzoa 25, 48160 Derio, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-8973-607X","authenticated-orcid":false,"given":"Rebecca","family":"Erlebach","sequence":"additional","affiliation":[{"name":"Federal Institute for Occupational Safety and Health, Friedrich-Henkel-Weg, 1-25, 44149 Dortmund, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anurag","family":"Bansal","sequence":"additional","affiliation":[{"name":"Acciona Construcci\u00f3n S.A., Direcci\u00f3n de Innovaci\u00f3n Tecnol\u00f3gica, 28108 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6027-8931","authenticated-orcid":false,"given":"Sara","family":"Sillaurren","sequence":"additional","affiliation":[{"name":"TECNALIA, Basque Research and Technology Alliance (BRTA), Arteaga Auzoa 25, 48160 Derio, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3284-2539","authenticated-orcid":false,"given":"Patricia","family":"Rosen","sequence":"additional","affiliation":[{"name":"Federal Institute for Occupational Safety and Health, Friedrich-Henkel-Weg, 1-25, 44149 Dortmund, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2755-4770","authenticated-orcid":false,"given":"Sascha","family":"Wischniewski","sequence":"additional","affiliation":[{"name":"Federal Institute for Occupational Safety and Health, Friedrich-Henkel-Weg, 1-25, 44149 Dortmund, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7003-1051","authenticated-orcid":false,"given":"Arantxa","family":"Renteria","sequence":"additional","affiliation":[{"name":"TECNALIA, Basque Research and Technology Alliance (BRTA), Arteaga Auzoa 25, 48160 Derio, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1949-953X","authenticated-orcid":false,"given":"Itziar","family":"Cabanes","sequence":"additional","affiliation":[{"name":"Department of Automatic Control and Systems Engineering, Bilbao School of Engineering, University of the Basque Country (UPV\/EHU), Plaza Ingeniero Torres Quevedo, 1, 48013 Bilbao, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,8,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"267","DOI":"10.1016\/j.aap.2015.11.027","article-title":"Critical factors and paths influencing construction workers\u2019 safety risk tolerances","volume":"93","author":"Wang","year":"2016","journal-title":"Accid. 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