Development of methods for quality evaluation of actual concrete structures by surface water absorption test

2014 Fiscal Year Final Research Report

• Project/Area Number: 25820202
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Kagawa National College of Technology
• Principal Investigator: HAYASHI Kazuhiko 香川高等専門学校, 建設環境工学科, 准教授 (20334633)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: コンクリート / 非破壊試験 / 耐久性 / 表面吸水試験 / 適用角度 / 塩化物イオンの拡散係数

Outline of Final Research Achievements

Surface water absorption test to measure the water absorption resistance of concrete is one of non-destructive testing methods. Though it is characterized to sensitively detect the difference in curing of concrete, applicable angle of concrete was limited.
New surface water absorption test method was developed. It can be applied to all angle of concrete surface like inner surface of tunnels and bottom surface of slabs. As results, the surface water absorption rate was not affected by the change of application angle of concrete surface. It was experimentally clarified that the surface water absorption speed correlate roughly with the diffusion coefficients of chloride ions.

Free Research Field

コンクリート工学