CRACK PREDICTION ANALYSIS FOR DRYING SHRINKAGE OF WET FINISHING PLASTERING MATERIALS ON THE EXTERNAL WALL

• MATSUMOTO Shinya

  Assistant Prof., Graduate School of Engineering, Hiroshima University, Dr. Eng.

• OHKUBO Takaaki

  Prof., Graduate School of Engineering, Hiroshima University, Dr. Eng.

Bibliographic Information

Other Title

• 下地コンクリートに拘束される仕上モルタルにおいて乾燥収縮ひび割れが発生しやすい位置の予測

Abstract

In this paper, it is shown that a crack prediction analysis for drying shrinkage of wet finishing plastering materials on the external wall. In this analysis, the drying shrinkage strain in the mortar is determined by proposal measurement procedure for the age. The internal stress in the finishing mortar is analyzed by finite element method based on the plane stress problem for the drying shrinkage strain derived from experimental measurement. We illustrate the method which predicts the crack generation point and time in finishing mortar. This present method is formulated by two-dimensional finite element method to apply the crack prediction for the opening on wall corners. The effectiveness of present method is verified by comparing the numerical results with the experimental tests. We investigate analytically the typical characteristics of the drying shrinkage of the external wall using wet finishing plastering material by numerical studies.

Journal

• Journal of Structural and Construction Engineering (Transactions of AIJ)

  Journal of Structural and Construction Engineering (Transactions of AIJ) 75 (648), 241-249, 2010

  Architectural Institute of Japan

Keywords

• <i>Mortar</i>
• <i>Restraint effect</i>
• <i>Crack</i>
• <i>Plane stress analysis</i>
• <i>Finite element method</i>

Details

• CRID: 1390282680581229312
• NII Article ID: 130004507776
• DOI: 10.3130/aijs.75.241
• ISSN: 18818153
• ISSN: 13404202
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed