Plastic shrinkage properties of cement mortar for large area floor

Author(s): Sehoon Jeon, Changyeul Moon2, Seungmin Kang, Myongshin Song
Paper category: Proceedings
Book title: Proceedings of the 2nd International RILEM/COST Conference on Early Age Cracking and Serviceability in Cement-based Materials and Structures Volume 2
Editor(s): Stéphanie Staquet and Dimitrios Aggelis
ISBN: 978-2-35158-200-8
e-ISBN: 978-2-35158-198-8
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 867-874
Total Pages: 8
Language : English

Abstract: Plastic shrinkage cracking in cement materials has no significant effect on concrete for general use, but can create large cracks in cement mortar used for large-area, thin floor finishes when exposed to dry and windy conditions. This study therefore aims to identify the mechanism by which cracks form due to plastic shrinkage so as to derive a measure to reduce them through by studying the plastic shrinkage of cement mortar under experimental conditions comparable to the average climatic conditions of seasons during which these cracks most frequently occur. The results obtained revealed that deformation due to plastic shrinkage begins between a stiffening start point and an initial setting point, and that when there is wind blowing before and after the start of condensation the plastic shrinkage strain is increased. Meanwhile, rapid plastic shrinkage deformation occurs in the case of wind blowing during the middle of condensation

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00