Rapid evaluation method of repairing of concrete deteriorated due to ASR

Research Project

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
Project Status	Completed (Fiscal Year 2015)
Budget Amount *help	¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000) Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000) Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords	アルカリシリカ反応 / ASR / 補修 / 表面含浸材 / CPT / 加速試験 / アルカリ溶脱 / 膨張量
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.

Report

(3 results)