Table 1.
Chemical composition of the fly ash.
Fig 1.
Particle size distribution of the fly ash.
Fig 2.
Shrinkage measurement equipment.
Fig 3.
(a) Multifilament and (b) individual PPF determined by optical microscope camera, (c) and (d) FESEM images of the PPF and (e) AFM of the fiber texture.
Fig 4.
Fourier transform infrared spectra of polypropylene.
Fig 5.
XRD patterns of the fly ash based geopolymer and 5% PPF reinforced FA based geopolymer.
Fig 6.
Influence of PPF on slump of the geopolymer composite.
Fig 7.
Influence of the polypropylene fibers on setting time of geopolymer composite.
Fig 8.
Effect of PPF content on density reduction of PPF fly ash based geopolymer.
Fig 9.
PPF content effect on controlling the shrinkage of fly ash based geopolymer.
Fig 10.
Schematic shrinkage effect on PPF fly ash based geopolymer composites.
Fig 11.
Flexural strength development of the PPF fly ash based geopolymer over time.
Fig 12.
Flexural strength-deflection curve of PPF geopolymer matrix at 56 days.
Fig 13.
Nominal flexural toughness improvement of PPF fly ash based geopolymer composites at 56 days.
Fig 14.
Fracture mode and toughening mechanism of PPF reinforced fly ash based geopolymer.
Fig 15.
(a-d) FESEM images and (e) schematic mechanism of PPF and geopolymer matrix interaction.
Fig 16.
Compressive strength variation of the PPF reinforced fly ash based geopolymer composites in 7 and 56 days.