DRYING SHRINKAGE OF HARDENED CEMENT PASTE UNDER DIFFERENT TEMPERATURE

• MARUYAMA Ippei

  Assoc. Prof., Graduate School of Environmental Studies, Nagoya Univ., Dr. Eng.

• KISHI Naoya

  Civil Engineering Center, Chiyoda Corporation, M. Eng.

Bibliographic Information

Other Title

• 異なる温度におけるセメント硬化体の乾燥収縮挙動
• コトナル オンド ニ オケル セメント コウカタイ ノ カンソウ シュウシュク キョドウ

Abstract

Length-change isotherm and desorption isotherm of hardened cement pastes whose water to cement ratio is 0.55 and cements used are ordinary portland cement, moderate heat portland cement, and low heat portland cement were measured in 20°C and 40°C degrees Celsius. In addition, vapor adsorption isotherm for BET surface area, Young's modulus and Poisson's ratio for bulk modulus under compressive loading test, and density of hardened cement paste and water content were measured. As a result, the higher temperature showed smaller water content and smaller shrinkage under desorption process. This phenomenon can be explained by the hydrophobic properties of the surface of the hardened cement paste in the higher temperature condition or the temperature and relative humidity dependency of surface area of hardened cement paste. Both hypothesis are reasonable and consistent with existing reports.

Journal

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

  Journal of Structural and Construction Engineering (Transactions of AIJ) 76 (659), 31-36, 2011

  Architectural Institute of Japan

Keywords

• <i>Hardened cement paste</i>
• <i>drying shrinkage</i>
• <i>temperature dependency</i>
• <i>hydration pressure</i>

Details

• CRID: 1390001205604538752
• NII Article ID: 130004752404
• NII Book ID: AN10438559
• DOI: 10.3130/aijs.76.31
• ISSN: 18818153
• ISSN: 13404202
• NDL BIB ID: 10964217
• Web Site: http://id.ndl.go.jp/bib/10964217
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10964217
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed