?좏솕泥섎━ 諛붿씠?ㅻ뵒?ㅼ씠 ?꾪룷??肄섑겕由ы듃??移⑦닾源딆씠 ?먯젙

This study is to provide a evaluation method for the penetration depth of emulsified refined bio diesel(ERBD)applied to a surface of the concrete by using water absorption capability of the concrete. The concrete applied with ERBD was immersed at water for 1 min., 5min., and 10 min. and then was checked the brightness with elapse of time. Test results indicated that there was clear difference between ERBD part and non ERBD part in concrete specimen after measuring the brightness until 120min.