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The concrete ground work often causes some troubles on the floor ， because of alow quality of the concre 匸 e． As one of these backgrounds ， it is enumerated to lack the evaluat 王 on method fbr the flatness ， the surface strength aη d the mois 亡 ure content that are important qualities fbr concrete ground work ． So this study presents the rapid measuring methods ， the evaluation methods and the draft of f( 〕 ur stages grading using 2 m straightedge ， the scratch tester ， the humidity test paper and the moisture meter ． 1 ．序

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