Rapid evaluation method of repairing of concrete deteriorated due to ASR

2015 Fiscal Year Final Research Report

• Project/Area Number: 26820178
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Civil engineering materials/Construction/Construction management
• Research Institution: Kyushu University
• Principal Investigator: SAGAWA YASUTAKA 九州大学, 工学(系)研究科(研究院), 准教授 (10325508)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: アルカリシリカ反応 / ASR / 補修 / 表面含浸材 / CPT

Outline of Final Research Achievements

The purpose of this study is to evaluate repairing effectiveness of concrete structures deteriorated due to Alkali Silica Reaction (ASR). Modified RILEM AAR-4 Method was proposed. This method is expected to decrease alkali leaching and drying. It is applied to accelerated test of concrete repaired with surface penetrant agent. As a result, it was observed that repairing effectiveness, in some cases, was not found. The reason seemed that water can not be released in the testing container.

Free Research Field

コンクリート工学