CHEN, Qianxu; YANG, Xin. A Study of Damage Modes Recognition of Polypropylene Fiber Reinforced Recycled Aggregate Concrete Based on Principal Components of Acoustic Emission Signals. Archives of Acoustics, [S. l.], 2026. DOI: 10.24423/archacoust.2026.4407. Disponível em: https://acoustics.ippt.pan.pl/index.php/aa/article/view/4407. Acesso em: 25 mar. 2026.