A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Workability and Mechanical Properties of Tensile Strain–Hardening PVA Fiber-Reinforced Magnesium Phosphate Cement Composites
https://orcid.org/0000-0002-5939-4927
https://orcid.org/0000-0002-7951-8405
https://orcid.org/0000-0001-9731-1611
To solve the inherent brittleness of magnesium phosphate cement (MPC)-based composites, we incorporated polyvinyl alcohol (PVA) fibers to develop tensile strain hardening fiber reinforced magnesium phosphate cement composites (SHFRMC). The effects of fly ash (FA) content, PVA fiber volume fractions (Vf), the sand to binder mass ratio (S/B), and the water to solid mass ratio (W/S) on the workability, compressive strength, and tensile properties of the SHFRMC were studied. Lastly, the micromorphology of PVA fibers and their bonding with the matrix was examined by the optical microscope test. Generally, when the FA content is 30%, the SHFRMC can achieve relatively high strength and strain capacity while maintaining good workability; the SHFRMC can achieve relatively high workability, strength, and strain capacity when the Vf is 1.8%; when the S/B is 0, the workability, strength, and strain capacity of the SHFRM are the highest; and when the W/S is 0.13 or 0.16, the SHFRMC can achieve relatively high strength and strain capacity while maintaining good workability. The results revealed that a trade-off was needed among the workability, compressive strength, direct tensile stress, and tensile strain. The optical microscopy test showed that PVA fiber connects well with the matrix and plays an important bridging role in the tensile process to bear stress and restrain crack development, resulting in multicracking.
Workability and Mechanical Properties of Tensile Strain–Hardening PVA Fiber-Reinforced Magnesium Phosphate Cement Composites
https://orcid.org/0000-0002-5939-4927
https://orcid.org/0000-0002-7951-8405
https://orcid.org/0000-0001-9731-1611
To solve the inherent brittleness of magnesium phosphate cement (MPC)-based composites, we incorporated polyvinyl alcohol (PVA) fibers to develop tensile strain hardening fiber reinforced magnesium phosphate cement composites (SHFRMC). The effects of fly ash (FA) content, PVA fiber volume fractions (Vf), the sand to binder mass ratio (S/B), and the water to solid mass ratio (W/S) on the workability, compressive strength, and tensile properties of the SHFRMC were studied. Lastly, the micromorphology of PVA fibers and their bonding with the matrix was examined by the optical microscope test. Generally, when the FA content is 30%, the SHFRMC can achieve relatively high strength and strain capacity while maintaining good workability; the SHFRMC can achieve relatively high workability, strength, and strain capacity when the Vf is 1.8%; when the S/B is 0, the workability, strength, and strain capacity of the SHFRM are the highest; and when the W/S is 0.13 or 0.16, the SHFRMC can achieve relatively high strength and strain capacity while maintaining good workability. The results revealed that a trade-off was needed among the workability, compressive strength, direct tensile stress, and tensile strain. The optical microscopy test showed that PVA fiber connects well with the matrix and plays an important bridging role in the tensile process to bear stress and restrain crack development, resulting in multicracking.
Workability and Mechanical Properties of Tensile Strain–Hardening PVA Fiber-Reinforced Magnesium Phosphate Cement Composites
https://orcid.org/0000-0002-5939-4927
https://orcid.org/0000-0002-7951-8405
https://orcid.org/0000-0001-9731-1611
To solve the inherent brittleness of magnesium phosphate cement (MPC)-based composites, we incorporated polyvinyl alcohol (PVA) fibers to develop tensile strain hardening fiber reinforced magnesium phosphate cement composites (SHFRMC). The effects of fly ash (FA) content, PVA fiber volume fractions (Vf), the sand to binder mass ratio (S/B), and the water to solid mass ratio (W/S) on the workability, compressive strength, and tensile properties of the SHFRMC were studied. Lastly, the micromorphology of PVA fibers and their bonding with the matrix was examined by the optical microscope test. Generally, when the FA content is 30%, the SHFRMC can achieve relatively high strength and strain capacity while maintaining good workability; the SHFRMC can achieve relatively high workability, strength, and strain capacity when the Vf is 1.8%; when the S/B is 0, the workability, strength, and strain capacity of the SHFRM are the highest; and when the W/S is 0.13 or 0.16, the SHFRMC can achieve relatively high strength and strain capacity while maintaining good workability. The results revealed that a trade-off was needed among the workability, compressive strength, direct tensile stress, and tensile strain. The optical microscopy test showed that PVA fiber connects well with the matrix and plays an important bridging role in the tensile process to bear stress and restrain crack development, resulting in multicracking.
Workability and Mechanical Properties of Tensile Strain–Hardening PVA Fiber-Reinforced Magnesium Phosphate Cement Composites
J. Mater. Civ. Eng.
Zhang, Shuwen (author) / Zhu, Yazhong (author) / Feng, Hu (author) / Guo, Aofei (author) / Shaukat, Ahmed Jawad (author) / Liu, Guanghui (author)
2022-07-01
Article (Journal)
Electronic Resource
English
Mechanical properties of basalt fiber reinforced magnesium phosphate cement composites
| British Library Online Contents | 2018
Bond Behavior of Reinforcing Bars in Tensile Strain-Hardening Fiber-Reinforced Cement Composites
| Online Contents | 2009
STRAIN HARDENING BEHAVIOR OF HYBRID FIBER REINFORCED CEMENT COMPOSITES
| British Library Conference Proceedings | 2001
| British Library Conference Proceedings | 2007