In this paper, we investigate the effect of silica nano-coating for interphase bond enhancement on the mechanical performance of Textile Reinforced Mortar (TRM) composite materials aimed at structural rehabilitation and strengthening. Alkali-resistant glass (ARG) and carbon fabric reinforcements are preliminarily treated via sol-gel deposition of SiO2coating to promote bond formation capability with the mortar matrix. Optical and electron microscopy provide evidence of interphase bond enhancement. Mechanical performance is assessed both in traction, through uni-axial elongation of prismatic coupons, and in flexure, by three-point bending of laminated masonry bricks. Results are given in terms of mean strength curves, ultimate and design strength and strain values, cracked and uncracked moduli, mean crack spacing, mean crack width and energy dissipation. It is shown that mean absolute performance of silica coating offers a significant improvement over uncoated fabric, yet it is inferior to that of specimens which have been treated with a liquid partially-organic adhesion promoter (polymer coating). However, when design values are considered which incorporate the dispersion of experimental data, silica coating proves superior or at least equivalent to polymer coating, respectively for carbon and ARG fabric. These promising results describe the first application of silica nano-coating to fabric reinforced composite materials.
Silica coating for interphase bond enhancement of carbon and AR-glass Textile Reinforced Mortar (TRM) / Signorini, C.; Nobili, A.; Cedillo González, E. I.; Siligardi, C.. - In: COMPOSITES. PART B, ENGINEERING. - ISSN 1359-8368. - 141(2018), pp. 191-202.
Data di pubblicazione: | 2018 |
Data di prima pubblicazione: | 3-gen-2018 |
Titolo: | Silica coating for interphase bond enhancement of carbon and AR-glass Textile Reinforced Mortar (TRM) |
Autore/i: | Signorini, C.; Nobili, A.; Cedillo González, E. I.; Siligardi, C. |
Autore/i UNIMORE: | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.compositesb.2017.12.045 |
Rivista: | |
Volume: | 141 |
Pagina iniziale: | 191 |
Pagina finale: | 202 |
Codice identificativo ISI: | WOS:000430779100019 |
Codice identificativo Scopus: | 2-s2.0-85040124000 |
Citazione: | Silica coating for interphase bond enhancement of carbon and AR-glass Textile Reinforced Mortar (TRM) / Signorini, C.; Nobili, A.; Cedillo González, E. I.; Siligardi, C.. - In: COMPOSITES. PART B, ENGINEERING. - ISSN 1359-8368. - 141(2018), pp. 191-202. |
Tipologia | Articolo su rivista |
File in questo prodotto:
File | Descrizione | Tipologia | |
---|---|---|---|
silicacoatings_FRCM-final-compressed.pdf | Articolo principale | Post-print dell'autore (bozza post referaggio) | Open Access Visualizza/Apri |

I documenti presenti in Iris Unimore sono rilasciati con licenza Creative Commons Attribuzione - Non commerciale - Non opere derivate 3.0 Italia, salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris