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Uniaxial Tensile Experiment on PVA Fiber Reinforced Cementitious Composites

Wang, Hai-long / Peng, Guang-Yu / Luo, Yue-Jing / Sun, Xiao-Yan

Engineered cementitious composite (ECC) is a representative of the new generation of high performance fiber reinforced cementitious composites. To reveal the influence of mineral admixtures on the tensile mechanical characteristics of polyvinyl alcohol fiber reinforced engineered cementitious composites (PVA-ECC), the tensile properties of PVA-ECC with replacing cement by a significant amount of fly ash (FA), silica fume (SF) and metakaolin (MK) was experimentally investigated. Uniaxial tensile experiment was carried out using rectangular thin plate with sizes of 400×100×15 mm³. Results from uniaxial tensile tests show that these mineral admixtures can improve the properties of PVA-ECC. The composite can achieve an ultimate strain of 2.0%, as well as an ultimate strength of 4.0 MPa, with a moderate fiber volume fraction of 2.0%. In addition, the composites with FA, SF and MK show saturated multiple cracking characteristics with crack width at ultimate strain limited to below 175 µm.

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Uniaxial Tensile Experiment on PVA Fiber Reinforced Cementitious Composites

Wang, Hai-long / Peng, Guang-Yu / Luo, Yue-Jing / Sun, Xiao-Yan

Engineered cementitious composite (ECC) is a representative of the new generation of high performance fiber reinforced cementitious composites. To reveal the influence of mineral admixtures on the tensile mechanical characteristics of polyvinyl alcohol fiber reinforced engineered cementitious composites (PVA-ECC), the tensile properties of PVA-ECC with replacing cement by a significant amount of fly ash (FA), silica fume (SF) and metakaolin (MK) was experimentally investigated. Uniaxial tensile experiment was carried out using rectangular thin plate with sizes of 400×100×15 mm³. Results from uniaxial tensile tests show that these mineral admixtures can improve the properties of PVA-ECC. The composite can achieve an ultimate strain of 2.0%, as well as an ultimate strength of 4.0 MPa, with a moderate fiber volume fraction of 2.0%. In addition, the composites with FA, SF and MK show saturated multiple cracking characteristics with crack width at ultimate strain limited to below 175 µm.

Uniaxial Tensile Experiment on PVA Fiber Reinforced Cementitious Composites

Wang, Hai-long / Peng, Guang-Yu / Luo, Yue-Jing / Sun, Xiao-Yan

Engineered cementitious composite (ECC) is a representative of the new generation of high performance fiber reinforced cementitious composites. To reveal the influence of mineral admixtures on the tensile mechanical characteristics of polyvinyl alcohol fiber reinforced engineered cementitious composites (PVA-ECC), the tensile properties of PVA-ECC with replacing cement by a significant amount of fly ash (FA), silica fume (SF) and metakaolin (MK) was experimentally investigated. Uniaxial tensile experiment was carried out using rectangular thin plate with sizes of 400×100×15 mm³. Results from uniaxial tensile tests show that these mineral admixtures can improve the properties of PVA-ECC. The composite can achieve an ultimate strain of 2.0%, as well as an ultimate strength of 4.0 MPa, with a moderate fiber volume fraction of 2.0%. In addition, the composites with FA, SF and MK show saturated multiple cracking characteristics with crack width at ultimate strain limited to below 175 µm.

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Title:

Uniaxial Tensile Experiment on PVA Fiber Reinforced Cementitious Composites

Contributors:

Wang, Hai-long (author) / Peng, Guang-Yu (author) / Luo, Yue-Jing (author) / Sun, Xiao-Yan (author)

Published in:

Civil Engineering, Architecture and Sustainable Infrastructure II, ICCEASI, International Conference on Civil Engineering, Architecture and Sustainable Infrastructure, 2013 ; 270-274

Applied Mechanics and Materials ; 438-439

Publication date:

2013

Size:

5 Seiten

ISSN:

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.438-439.270

Type of media:

Conference paper

Type of material:

Print

Language:

English

Keywords:

einachsiger Spannungszustand , Polyvinylalkoholfaser , Komposit , faserverstärkter Kompositwerkstoff , Mineral , Hochtemperaturfaser , Zement , Flugasche , Silicafeinststaub , Zugprüfung , Volumenfraktion , Beimengung , Bruchgrenze , Rissbreite

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