Page 58 - New Trends in Green Construction

Circular Economy
16,00 12,00 8,00 4,00 0,00
FS 0% FS 10% FS 15% FS 20% FS 50% CS 0% CS 10% CS 15% CS 20% CS 50%
7 days
28 days
90 days
365 days
1,60
1,45
0% 10% 15% 20% 50%
0,27
0,22
0,25
0,20
1,20
0,80
0,40
0,00
Figure 1. Flexural and compressive strength over time Figure 2. Coefficient of water absorption (28 days)
Concerning the water behavior, the incorporation of GFRP improved the water absorption by
2 0.5 capillarity, decreasing the corresponding coefficient from 1.45 to 0.20-0.27 (kg/m .min ),
depending on the mortars, in comparison with the reference mortar (Figure 2).
In this research the main conclusions are that the incorporation of this waste improves the mechanical behavior of the mortars and reduces their water absorption coefficient. In fact, it is possible to find solutions to reuse the GFRP waste reducing, on the one hand, the amount of natural resources present in mortars and, on the other hand, landfill deposition.
4. Acknowledgment
The authors would like to acknowledge the support of the Portuguese Foundation for Science and Technology for the financial support of this research (PD/BD/113639/2015).
5. References
EN 1015-11, Methods of test for mortar for masonry - Part 11: Determination of flexural and compressive strength of hardened mortar. 1999.
EN 1015-18, Methods of test for mortar for masonry - Part 18: Determination of water absorption coefficient due to capillary action of hardened mortar. 2002.
C. B. Farinha, J. de Brito, and R. Veiga, “Assessment of glass fibre reinforced polymer waste reuse as filler in mortars”, J. Clean. Prod., vol. 210, 1579-1594, 2018.
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Flexural and compressive strength (MPa)
Absortion by capillarity
2 0.5 (kg/(m .min ))