Study on acoustic emission characteristics under compression and fractal dimension of pore structure of polyvinyl alcohol fiber engineered cementitious composites DOI Creative Commons
Yueqiang Li, Xin Huang, Yongli Zhao

и другие.

Frontiers in Materials, Год журнала: 2024, Номер 11

Опубликована: Дек. 20, 2024

Fiber adding to engineered cementitious composites (ECC) can effectively improve the performance of material. This study used acoustic emission (AE) technique influence polyvinyl alcohol (PVA) fibre content on compressive strength and damage evolution ECC fractal theory analyse pore structure PVA-ECC, which innovatively explored mechanical properties durability PVA-ECC from macro micro perspectives. In terms properties, with 1% PVA volume was highest. changed compression mechanism ECC, showing a decrease in internal tensile cracking an increase shear through RA-AF values. developed brittle ductile damage. microstructure durability, had best impermeability characteristics, great characteristics transition pores capillary pores. The dimension good correlation porosity, total volume, most probable aperture, chloride diffusion coefficient, indicating that were closely related complex spatial distribution be comprehensively characterise ECC.

Язык: Английский

Study on acoustic emission characteristics under compression and fractal dimension of pore structure of polyvinyl alcohol fiber engineered cementitious composites DOI Creative Commons
Yueqiang Li, Xin Huang, Yongli Zhao

и другие.

Frontiers in Materials, Год журнала: 2024, Номер 11

Опубликована: Дек. 20, 2024

Fiber adding to engineered cementitious composites (ECC) can effectively improve the performance of material. This study used acoustic emission (AE) technique influence polyvinyl alcohol (PVA) fibre content on compressive strength and damage evolution ECC fractal theory analyse pore structure PVA-ECC, which innovatively explored mechanical properties durability PVA-ECC from macro micro perspectives. In terms properties, with 1% PVA volume was highest. changed compression mechanism ECC, showing a decrease in internal tensile cracking an increase shear through RA-AF values. developed brittle ductile damage. microstructure durability, had best impermeability characteristics, great characteristics transition pores capillary pores. The dimension good correlation porosity, total volume, most probable aperture, chloride diffusion coefficient, indicating that were closely related complex spatial distribution be comprehensively characterise ECC.

Язык: Английский

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