PSI - Issue 62

Federico Laino et al. / Procedia Structural Integrity 62 (2024) 983–989 Barile S., Laino F., Muzzupappa E./ Structural Integrity Procedia 00 (2019) 000 – 000

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The graph in Figure 7 compares elasticity test results obtained on 18-year-old product specimens and those obtained on specimens cured for 28 days in the laboratory.

Figure 7: Comparison of tensile stress and elongation value between material specimens cured 28 days in laboratory and those aged 18 years. By analyzing the values of tensile stress and percent elongation at failure, we can conclude that the flexible mortar maintained its elasticity unchanged over time. Finally, Figure 8 shows an image related to the carbonation tests performed directly in situ on the specimens taken from the structure.

Figure 8: Sample taken from the structure and analyzed with phenolphthalein: the total absence of carbonation in the concrete thickness can be seen)

The colorimetric type test designed to detect the presence of carbonation revealed the total absence of degradation in the substrate, demonstrating that the membrane has effectively counteracted carbon dioxide penetration for all the years of its life.

4. The innovation given by 100% CO2 offset mortars. Mapei Company’s commitment to an increasingly sustainable world of construction continues, where the client,