Construction of basic model on evaluation of aged deterioration of concrete based in exposure test of concrete conducted in whole of Japan

• Project/Area Number: 26289134
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Civil engineering materials/Construction/Construction management
• Research Institution: Tohoku University
• Principal Investigator: HISADA Makoto 東北大学, 工学(系)研究科(研究院), 教授 (80238295)
• Co-Investigator(Kenkyū-buntansha): 皆川 浩 東北大学, 工学(系)研究科(研究院), 准教授 (10431537) ; 宮本 慎太郎 東北大学, 工学(系)研究科(研究院), 助教 (60709723)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000); Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2014: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
• Keywords: 曝露試験 / 環境作用 / 耐久性 / 中性化 / 長期曝露試験 / コンクリート / 水セメント比 / 曝露環境 / 長期的物性 / 気象条件

Outline of Final Research Achievements

The purpose of this study was to construct a basic model on estimation of aged deterioration of concrete based on several investigation results which were obtained from some exposure tests conducted in whole of Japan during 10 years. This study investigated the influence of the environment on some properties of concrete. As a result, it was confirmed that the concrete with high water to cement ratio was susceptible to environmental effects through compressive test, water permeability test and carbonation test.

Research Products

• [Journal Article] RELATIONSHIP BETWEEN WATER-CEMENT RATIO AND CHANGE OF AMOUNT OF PORTLANDITE DUE TO CARBONATION IN CONCERETE EXPOSED AT VARIOUS REGION OF JAPAN DURING 10 YEARS (2016)
  • Author(s): 倉田和英 宮本慎太郎 皆川浩 久田真
  • Journal Title: Cement Science and Concrete Technology Volume: 70 Issue: 1 Pages: 435-442
  • DOI: 10.14250/cement.70.435
  • NAID: 130005519440
  • ISSN: 0916-3182, 2187-3313
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] 異なる環境に10年間曝露したコンクリートの中性化の進行と気象条件との関係 (2015)
  • Author(s): 倉田和英，宮本慎太郎，皆川浩，久田真
  • Organizer: 土木学会 第70回年次学術講演会
  • Place of Presentation: 岡山大学津島キャンパス（岡山県・岡山市）
  • Year and Date: 2015-09-16 – 2015-09-18
• [Presentation] 異なる環境に10 年間曝露したコンクリートの環境作用の影響に関する検討 (2015)
  • Author(s): 倉田和英，宮本慎太郎，皆川浩，久田真
  • Organizer: 平成26年度土木学会東北支部技術研究発表会
  • Place of Presentation: 東北学院大学多賀城キャンパス（宮城県・多賀城市）
  • Year and Date: 2015-03-07