MODELING OF PH PROFILE IN PORE WATER BASED ON MASS TRANSPORT AND CHEMICAL EQUILIBRIUM THEORY

• ISHIDA Tetsuya

  JAPAN SOCIETY OF CIVIL ENGINEERS

• MAEKAWA Koichi

  JAPAN SOCIETY OF CIVIL ENGINEERS

Bibliographic Information

Other Title

• 物質移動則と化学平衡論に基づく空隙水のpH評価モデル
• ブッシツ イドウソク ト カガク ヘイコウロン ニ モトヅク クウゲキスイ ノ pH ヒョウカ モデル

Abstract

The authors presented a computational system that can deal with pH fluctuation and decomposition of cementitious materials exposed to various environmental actions. In order to evaluate a drop in pH due to carbon dioxide, the material models were developed for transport and equilibrium of carbon dioxide, ionization, ion equilibriums, and carbonation reaction based on thermo-dynamic theory. The material properties of concrete are evaluated considering the inter-relationship of hydration, moisture transport and pore-structure development processes based upon fundamental physical material models. The proposed system can reasonably predict the carbonation phenomena and pH profile in concrete for arbitrary conditions.

Journal

• Doboku Gakkai Ronbunshu

  Doboku Gakkai Ronbunshu 2000 (648), 203-215, 2000-05-20

  Japan Society of Civil Engineers

Keywords

• Durability
• pH
• mass transport
• chemical equilibrium
• carbonation
• pore solution

Details

• CRID: 1390001205310564224
• NII Article ID: 130003983542
• NII Article ID: 10007255355
• NII Article ID: 10004444028
• NII Book ID: AN10014020
• DOI: 10.2208/jscej.2000.648_203
• ISSN: 18827187
• ISSN: 02897806
• ISSN: http://id.crossref.org/issn/02897806
• NDL BIB ID: 5356915
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5356915
• Web Site: https://www.jstage.jst.go.jp/article/jscej1984/2000/648/2000_648_203/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed