Alkali-silica reaction-induced strains over concrete surface and steel bars in concrete

Tarek Uddin Mohammed, Hidenori Hamada, Toru Yamaji

研究成果: ジャーナルへの寄稿記事

16 引用 (Scopus)

抄録

A detailed experimental investigation was carried out to understand the alkali-silica reaction (ASR) induced strains over the concrete surface and embedded steel bars in concrete. For this study, prism specimens 250 × 250 × 600 mm were made with different layout of the reinforcements in concrete, that is, different restraint conditions. Additional NaOH was added to raise the total Na2O equivalent alkali content in concrete to 6 kg/m3. The specimens were submerged in seawater at 40°C in a closed container. Lateral and longitudinal strains over the concrete surface and strains over the steel bars were measured. Crack maps over the specimens were also recorded periodically. In addition to the prism specimens, cylinder specimens 100 mm in diameter and 200 mm in length were also investigated for pulse velocity, compressive strength, and Young's modulus. Based on the experimental data, ASR-induced expansion process and strain induced over the concrete surface and steel bars with the variation of restraint conditions provided by the steel bars in concrete are summarized.

元の言語英語
ページ(範囲)133-142
ページ数10
ジャーナルACI Materials Journal
100
発行部数2
出版物ステータス出版済み - 1 1 2003

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Steel
Alkalies
Silicon Dioxide
Silica
Concretes
Prisms
Seawater
Compressive strength
Containers
Reinforcement
Elastic moduli
Cracks

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

これを引用

Alkali-silica reaction-induced strains over concrete surface and steel bars in concrete. / Mohammed, Tarek Uddin; Hamada, Hidenori; Yamaji, Toru.

:: ACI Materials Journal, 巻 100, 番号 2, 01.01.2003, p. 133-142.

研究成果: ジャーナルへの寄稿記事

Mohammed, Tarek Uddin ; Hamada, Hidenori ; Yamaji, Toru. / Alkali-silica reaction-induced strains over concrete surface and steel bars in concrete. :: ACI Materials Journal. 2003 ; 巻 100, 番号 2. pp. 133-142.
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