TY - JOUR
T1 - A study on magnesium phosphate cement mortars reinforced by polyvinyl alcohol fibers
AU - Dong, Peng
AU - Ahmad, Muhammad Riaz
AU - Chen, Bing
AU - Munir, Muhammad Junaid
AU - Kazmi, Syed Minhaj Saleem
N1 - Funding Information:
This research work was financially supported by the National Natural Science Foundation of China, Grant No. 51778363.
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/10/4
Y1 - 2021/10/4
N2 - This paper studies the influence of polyvinyl alcohol (PVA) fibers on the mechanical and water resistance properties of fiber-reinforced magnesium phosphate cement (FR-MPC) mortar composites. The dosage of fiber was kept at 0%, 0.13%, 0.25%, 0.5% and 0.75% respectively. The increase in fiber content gradually reduced the fluidity of FR-MPC composites. The addition of PVA fibers increased the water absorption, porosity, and loss in mass. The compressive, three-point flexural, four-point flexural, and splitting tensile strength were improved with the addition of PVA fibers. In all cases, an amount of 0.5% PVA fiber was found as an optimum dosage. Fracture toughness and ductility performance were enhanced due to inclusion of fibers. However, there was a continuous decrease in water resistance with the increase in fiber content. Observations by SEM revealed that fibers show non-uniform distribution at a high dosage of 0.75%, which also corroborated with the findings of mechanical properties.
AB - This paper studies the influence of polyvinyl alcohol (PVA) fibers on the mechanical and water resistance properties of fiber-reinforced magnesium phosphate cement (FR-MPC) mortar composites. The dosage of fiber was kept at 0%, 0.13%, 0.25%, 0.5% and 0.75% respectively. The increase in fiber content gradually reduced the fluidity of FR-MPC composites. The addition of PVA fibers increased the water absorption, porosity, and loss in mass. The compressive, three-point flexural, four-point flexural, and splitting tensile strength were improved with the addition of PVA fibers. In all cases, an amount of 0.5% PVA fiber was found as an optimum dosage. Fracture toughness and ductility performance were enhanced due to inclusion of fibers. However, there was a continuous decrease in water resistance with the increase in fiber content. Observations by SEM revealed that fibers show non-uniform distribution at a high dosage of 0.75%, which also corroborated with the findings of mechanical properties.
KW - Fiber-reinforced composite
KW - Fracture toughness
KW - Magnesium phosphate cement
KW - Mechanical properties
KW - Polyvinyl alcohol fibers
KW - Splitting tensile strength
KW - Water resistance
UR - http://www.scopus.com/inward/record.url?scp=85109216936&partnerID=8YFLogxK
U2 - 10.1016/j.conbuildmat.2021.124154
DO - 10.1016/j.conbuildmat.2021.124154
M3 - Journal article
AN - SCOPUS:85109216936
SN - 0950-0618
VL - 302
JO - Construction and Building Materials
JF - Construction and Building Materials
M1 - 124154
ER -