検査技術・診断(2)

[VI-280] Study on development of crack width measuring device for concrete structure surface using SLR camera

〇Makoto Akahori¹, Kaoru Kobayashi¹, Hisako Kobayashi², Youhei Yamashita² (1.JR East Consultants Company, 2.East Japan Railway Company)

Keywords:Crack width, Crack scale

In the maintenance of concrete structures,crack inspection is a material that gives important information to
judge the necessity of detaild investigation such as examining the internal damage situation.
Crack width measurement is a very important measurement index for estimating the durability and cause of deterioration of structures.
This time,we examined a simple measuring device using a laser irradiator and camera for the purpose of easily measuring the crack width from outside the site.