| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem of no repair construction method existing for a hard finished floor due to incapability of acquiring the adhesion of a repair floor because of its hard and nonporous properties in repair when damaged under the long-term use of the hard finished floor formed by scattering a mixture obtained by mixing wear-resistant aggregate such as natural stone, artificial aggregate or carborundum, with a hydraulic binding material such as Portland cement, on the surface of unhardened concrete or mortar, and absorbing excess moisture in the concrete or mortar to harden it. SOLUTION: Resin mortar comprising water polyol, an isocyanate compound, hydraulic cement and further aggregate mixed if necessary can be reused as the repair floor because of its excellent adhesion to the existing hard finished floor and its excellent floor performance such as wear resistance.
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