Bernard De Graef 1 – 2 of 2 publications Show 5 5 10 15 20 50 100 250 Sort by year (new to old) Actions Filter publications Download search results Subscribe to news feed Add to list Journal Article A1 Cleaning of concrete fouled by lichens with the aid of Thiobacilli Bernard De Graef, Wim De Windt, J Dick, Willy Verstraete (UGent) and Nele De Belie (UGent) (2005) MATERIALS AND STRUCTURES. 38(284). p.875-882 Add to list Conference Paper C1 Microbial ureolytic calcium carbonate precipitation for remediation of concrete surfaces Willem De Muynck (UGent) , Bernard De Graef, Nele De Belie (UGent) , J DICK, Wim De Windt and Willy Verstraete (UGent) (1993) Proceedings of the International Conference on concrete repair, rehabilitation and retrofitting. p.296-302