All papers published in this volume of IOP Conference Series: Materials Science and Engineering have been peer reviewed through processes administered by the proceedings Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing.• Type of peer review: Single-blindTo ensure quality and professional ethics a peer review mechanism has been adopted. The reviewers (at least two for each paper) received the manuscript with all the details of the authors and a form, prepared for the conference, with certain fields for comments and recommendations. The authors, at the next step, received anonymous reviews with the following possible recommendations: accept as is/minor revisions/major revisions/reject. The papers were revised by the authors accordingly and then forwarded to the same reviewers for final recommendation. The final decision was taken by the editors.• Conference submission management system: The papers were submitted to Easychair platform, handled by the editors.https://easychair.org/my/conference?conf=cce20210Two of the editors managed the correspondence between reviewers and authors.• Number of submissions received: 89• Number of submissions sent for review: 63• Number of submissions accepted: 48• Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100): 53.39• Average number of reviews per paper: 3• Total number of reviewers involved: 66• Any additional info on review process: A pre-screening process has been adopted to comply with the quality of technical content under the following steps:1. Screening of the papers has been done by the editors on the originality of the content and technical area. If the paper was related to the theme of the conference, reviewers have been assigned by the editors.2. If the technical area of the submitted paper is not related to the theme of the conference, the paper has been sent back to the authors by the editors.3. If the similarity index was more than 15%, the paper has also been sent back to the authors for revision.4. The similarity check was done in paralell with the review process. The similarity report was sent together with the reviews to the authors. If the similarity index was greater than 15% the authors were asked to review their paper.5. After authors revison the paper was submitted again for similarity check.• Contact person for queries: Gabriela Covatariu, PhD, PMPFaculty of Civil Engineering and Building Services, “Gheorghe Asachi” TechnicalUniversity of Iași, Romania,Email: gabriela.covatariu@tuiasi.ro