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The degree of damage, in most case, evaluated as defects of structural surface. In order to maintenance and management of concrete structures, it is desirable to evaluate not only mechanical properties but also detection of defects. In this study, detection of concrete crack in steel sheet pile \u2013 concrete composite is proposed by applying infrared thermography method and the semi-variogram analysis of geo-statistics. The semi-variogram analysis is a quantitative evaluation method of the spatial distribution of physical properties. Thus, the semi-variogram appeared different semivariance characteristics depending on the damage degree. The damage level could be reasonably quantified with the semivariogram. By evaluating the damage from the semi-variogram analysis using infrared image, the damage of concrete surface layer is quantitatively evaluated.", "subitem_description_type": "Abstract"}]}, "item_7_full_name_3": {"attribute_name": "\u8457\u8005\u5225\u540d", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "162551", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Kobayashi, Shuichi"}]}, {"nameIdentifiers": [{"nameIdentifier": "162552", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Suzuki, Tetsuya"}]}, {"nameIdentifiers": [{"nameIdentifier": "162553", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Morii, Toshihiro"}]}]}, "item_7_publisher_7": {"attribute_name": "\u51fa\u7248\u8005", "attribute_value_mlt": [{"subitem_publisher": "\u65b0\u6f5f\u5927\u5b66\u8fb2\u5b66\u90e8"}]}, "item_7_select_19": {"attribute_name": "\u8457\u8005\u7248\u30d5\u30e9\u30b0", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_7_source_id_11": 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