INVESTIGATION ABOUT EVENNESS AND LEVELNESS OF CONCRETE FLOOR GROUNDWORK

Floor is the most important part of building, and flatness of floor groundwork strongly influences flatness of floor constructed finishing material. To construct floor groundwork flatly, it is necessary to talk about flatness quantitatively among construction related parties (clients, designers, administrators, craftsmen, etc.). Japan Research Conference of Floor Construction Technology proposed a method to measure and evaluate flatness, by which everyone can easily do on construction site. This report describes the consideration on a validity of this method, and on relations between flatness of floor groundworks and flatness of floors constructed finishing material, based on measurement results in actual buildings.