Judging indices for evaluating the exfoliation of synthetic resin floorings using the impact acoustics method

• We developed judging indices and criteria for evaluating exfoliation of synthetic resin floorings.
• Synthetic resin flooring samples with artificial exfoliation areas were prepared.
• Percussive sounds of the exfoliation and nonexfoliation areas were measured.
• These were used to develop several novel parameters for examining exfoliation.
• A scatter chart was also developed for judging the degree of exfoliation.

Judging indices and criteria have been developed for evaluating whether exfoliation exists in synthetic resin flooring coatings using the impact acoustics method. For this, synthetic resin flooring samples were prepared with artificial exfoliation areas of various sizes, and then percussive sound of the exfoliated and nonexfoliated areas was used to develop several novel parameters to use as judging indices. These were then used to develop a scatter chart that can be used as an effective index for evaluating exfoliation.