視覚的観点からみたコンクリート床下地の表面凹凸の施工管理指標に関する基礎的研究

摘要

As one of the important points on the evaluation of flatness of the floor, the evaluation by viewpoint of visual comfort can be enumerated. In this study, the relation between the evaluation of the flatness of floor and the flatness of the concrete groundwork was examined in the viewpoint of visual comfort. Through this examination, the process and results that suggested an specific example of "Construction management index" for setting up an targeted flatness, when concrete groundwork is constructed in accordance with required performance, was reported. In this study, the establishment of flame that is able to reasonably set up alabor force, which concrete finishing work was put into in accordance with required performance, was conducted as final objective. As a result of the evaluation of flatness of floor by viewpoint of visual comfort, it was found that general prediction of flatness of each finishing materials was possible by usage of maximum gap of concrete groundwork which is measured by 2 m straightedge method.%コンクリートには、構造材料としての機能と、仕上げ材の下地としての機能が要求される.コンクリート床下地に要求される表層部品質の1つとして、表面凹凸が挙げられる.床下地の表面凹凸は、その下地上に仕上げ材が施工された床の表面凹凸に少なからず影響する.床下地と仕上げ材施工後の床の表面凹凸の関係は仕上げ材の材料,構法などにより大きく異なることが容易に予想されるが、横山らが実施した実験室実験や実際の施工現場における測定の結果では、少なくとも厚さ2.0mmのシートを直接貼付した張り床や、膜厚1.5mm程度の塗り床では、仕上げ材により表面凹凸はほとんど改善されないことが明らかとなっている.