抄録
The concrete ground work often causes some troubles on the floor, because of a low quality of the concrete. As one of these backgrounds, it is enumerated to lack the evaluation method for the flatness, the surface strength and the moisture content that are important qualities for concrete ground work. So this study presents the rapid measuring methods, the evaluation methods and the draft of four stages grading using 2 m straightedge, the scratch tester, the humidity test paper and the moisture meter.
