A Study on Several Ink-bottle Geometric Structures in Hardened Cement Paste

• KISHI Toshiharu

  東京大学生産技術研究所　人間・社会系部門

• YOSHIDA Ryo

  東京大学大学院工学系研究科　社会基盤学専攻

Bibliographic Information

Other Title

• 硬化セメントペーストが内包する複数のインクボトル幾何構造に関する研究
• コウカ セメント ペースト ガ ナイホウスル フクスウ ノ インクボトル キカ コウゾウ ニ カンスル ケンキュウ

Abstract

   Hardened cementitious materials consist of various kinds of pores, like gel pores, capillary pores, air voids and so on, whose size and shape distribution is often called pore structure. However, the connection between these pores, which creates Ink-bottle relation and dominate drying shrinkage or ion absorption. Mercury intrusion porosimetry (MIP) test is one of the widely used methods to study the pore structure of cementitious materials. However, it is well known that the evaluation of pore structure by MIP is not totally accurate. The main reasons are the ink-bottle effect and the destruction of pores due to excessive high pressure. <br> A unique method that can determine volumes of continuative pore and discontinuative pore structure is proposed. Furthermore, according to this method, a suitable maximum intrusion pressure can be selected. In this study, boundary pore between capillary and gel pores is found using the results of the proposed method. [This abstract is not included in the PDF]<br>

Journal

• SEISAN KENKYU

  SEISAN KENKYU 60 (5), 512-515, 2008

  Institute of Industrial Science The University of Tokyo

Details

• CRID: 1390001204061879552
• NII Article ID: 130000102345
• NII Book ID: AN00127075
• DOI: 10.11188/seisankenkyu.60.512
• COI: 1:CAS:528:DC%2BD1cXht1GksrvM
• ISSN: 18812058
• ISSN: 0037105X
• NDL BIB ID: 9681036
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9681036
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed