{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T12:31:52Z","timestamp":1740141112085,"version":"3.37.3"},"reference-count":21,"publisher":"IOP Publishing","issue":"1","license":[{"start":{"date-parts":[[2022,12,1]],"date-time":"2022-12-01T00:00:00Z","timestamp":1669852800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"},{"start":{"date-parts":[[2022,12,1]],"date-time":"2022-12-01T00:00:00Z","timestamp":1669852800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["J. Phys.: Conf. Ser."],"published-print":{"date-parts":[[2022,12,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>The use of concrete has been widespread in our society in housing and infrastructure, despite the environmental cost associated with its production. Its decay poses a social, economic, and environmental problem. Currently, the carbonation of cement paste is monitored through the measurement of its pH, with several optical fiber sensors (OFS) have been produced for this purpose. In the current work the focus is, also, on the carbonation monitoring of cement paste through an OFS, but not through pH measurements. Single fiber reflectance spectroscopy, previously employed to measure cement paste durability, is used to monitor the discoloration of cement paste caused by carbonation. As the carbonation front reaches the fiber tip embedded in the cement paste, the signal reflected onto the fiber increases. The accelerated carbonation of two limestone cement paste samples in an atmosphere of 100% CO<jats:sub>2<\/jats:sub> was successfully monitored. The applicability of the sensor for operational use with ambient CO<jats:sub>2<\/jats:sub> was confirmed through the measurement of carbonation at 3% CO<jats:sub>2<\/jats:sub>. The cross interference from water ingress and egress was also evaluated, and it didn\u2019t hinder the measurements of carbonation. Therefore, a novel OFS capable of measuring cement paste carbonation and durability, was achieved.<\/jats:p>","DOI":"10.1088\/1742-6596\/2407\/1\/012038","type":"journal-article","created":{"date-parts":[[2022,12,15]],"date-time":"2022-12-15T18:32:23Z","timestamp":1671129143000},"page":"012038","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Optical fiber sensors for monitoring cement paste carbonation"],"prefix":"10.1088","volume":"2407","author":[{"given":"P M","family":"da Silva","sequence":"first","affiliation":[]},{"given":"J P","family":"Mendes","sequence":"additional","affiliation":[]},{"given":"L C C","family":"Coelho","sequence":"additional","affiliation":[]},{"given":"J M M M","family":"de 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