A study on advancement of ASR diagnosis for ASR deteriorated pretension PC girder

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420439
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Civil engineering materials/Construction/Construction management
• Research Institution: University of the Ryukyus
• Principal Investigator: TOMIYAMA Jun 琉球大学, 工学部, 准教授 (20325830)
• Co-Investigator(Renkei-kenkyūsha): ASAI Mitsuteru 九州大学, 工学研究院, 准教授 (90411230)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: アルカリシリカ反応 / プレテンションPC部材 / 劣化診断 / 数値解析 / 付着特性

Outline of Final Research Achievements

In this study, we have performed the following studies for the purpose of the advancement of the deterioration diagnosis for the pre-tension PC member that ASR deteriorated. As the first stage, the materials deterioration prediction technique due to ASR deterioration have been examined. In next stage, a bond mode between concrete and PC strand considering ASR expansions has been proposed. At the final stage, we have performed the bending test of the pre-tension PC beam that ASR deteriorated, and a possibility of prediction on the load bearing capacity of it using Non-linear finite element analysis has been shown.

Free Research Field

コンクリート工学