Correction to: Application of ultrasonic pulse velocity for assessment of thermal expansion coefficient of concrete at early age
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1 Correction to: Materials and Structures (2017) 50:5 https://doi.org/10.1617/s11527-016-0866-9
The article Application of ultrasonic pulse velocity for assessment of thermal expansion coefficient of concrete at early age, written by Semion Zhutovsky, Konstantin Kovler, was originally published online without Open Access. After publication in volume 50, article ID 5 RILEM decided to grant the author to opt for open choice and to make the article an open-access publication. Therefore, the copyright of the article has been changed to © The Author(s) 2018 and the article is forthwith distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, duplication, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.