Eco-compatible protective treatments on an Italian historic mortar (XIV century)

Giuliana Taglieri, Valeria Daniele, Gianluigi Rosatelli, Stefano Sfarra, Maria Cristina Mascolo, Claudia Mondelli

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

This paper reports significant results about the effects of repeated treatments to protect a mediaeval Italian mortar from capillarity-absorbed water, by using for the treatments, our no-commercial hydro-alcoholic suspensions of calcium hydroxide nanoparticles (nanolime). The mortars samples came from the historical site, where preliminary thermographic inspection were performed to detect the damp zones. Before treatments, the samples were analyzed from a mineralogical and chemical point of view, by means of several techniques, as optical microscopy (OM), thin section observations (PFM), porosimetric investigations, X-ray fluorescence (XRF), X-ray diffraction (XRD), infrared spectroscopy (FT-IR) and thermal analysis (TG-DTA). The size-grading curve of the aggregate and the binder/aggregate ratio were examined too. Then, the efficacy of nanolime protective treatments on this mortar versus the nanolime concentrations was investigated. For this aim, capillarity tests as well as porosimetric investigations, before and after the treatments, were performed. The obtained results were remarkably promising both in terms of the reduction of water absorbed by capillarity (up to 60%) together with an adequate decrease of porosity (up to 23%), fixing the protective effect of such eco-friendly and very compatible approach.

Original languageEnglish
Pages (from-to)135-141
Number of pages7
JournalJournal of Cultural Heritage
Volume25
DOIs
Publication statusPublished - 1 May 2017
Externally publishedYes

Fingerprint

Capillarity
Mortar
water
grading
alcoholism
Calcium Hydroxide
Hydrated lime
Water
Differential thermal analysis
Thermoanalysis
Optical microscopy
Binders
Infrared spectroscopy
Suspensions
Porosity
Inspection
Fluorescence
Nanoparticles
X ray diffraction
X rays

Keywords

  • Characterization
  • Historic mortars
  • Nanoparticles
  • Protective treatments
  • Water absorption

ASJC Scopus subject areas

  • Conservation
  • Chemistry (miscellaneous)
  • History
  • Anthropology

Cite this

Eco-compatible protective treatments on an Italian historic mortar (XIV century). / Taglieri, Giuliana; Daniele, Valeria; Rosatelli, Gianluigi; Sfarra, Stefano; Mascolo, Maria Cristina; Mondelli, Claudia.

In: Journal of Cultural Heritage, Vol. 25, 01.05.2017, p. 135-141.

Research output: Contribution to journalArticle

Taglieri, Giuliana ; Daniele, Valeria ; Rosatelli, Gianluigi ; Sfarra, Stefano ; Mascolo, Maria Cristina ; Mondelli, Claudia. / Eco-compatible protective treatments on an Italian historic mortar (XIV century). In: Journal of Cultural Heritage. 2017 ; Vol. 25. pp. 135-141.
@article{c01a53ed7f2843aea0cae5132fe0c13b,
title = "Eco-compatible protective treatments on an Italian historic mortar (XIV century)",
abstract = "This paper reports significant results about the effects of repeated treatments to protect a mediaeval Italian mortar from capillarity-absorbed water, by using for the treatments, our no-commercial hydro-alcoholic suspensions of calcium hydroxide nanoparticles (nanolime). The mortars samples came from the historical site, where preliminary thermographic inspection were performed to detect the damp zones. Before treatments, the samples were analyzed from a mineralogical and chemical point of view, by means of several techniques, as optical microscopy (OM), thin section observations (PFM), porosimetric investigations, X-ray fluorescence (XRF), X-ray diffraction (XRD), infrared spectroscopy (FT-IR) and thermal analysis (TG-DTA). The size-grading curve of the aggregate and the binder/aggregate ratio were examined too. Then, the efficacy of nanolime protective treatments on this mortar versus the nanolime concentrations was investigated. For this aim, capillarity tests as well as porosimetric investigations, before and after the treatments, were performed. The obtained results were remarkably promising both in terms of the reduction of water absorbed by capillarity (up to 60{\%}) together with an adequate decrease of porosity (up to 23{\%}), fixing the protective effect of such eco-friendly and very compatible approach.",
keywords = "Characterization, Historic mortars, Nanoparticles, Protective treatments, Water absorption",
author = "Giuliana Taglieri and Valeria Daniele and Gianluigi Rosatelli and Stefano Sfarra and Mascolo, {Maria Cristina} and Claudia Mondelli",
year = "2017",
month = "5",
day = "1",
doi = "10.1016/j.culher.2016.12.008",
language = "English",
volume = "25",
pages = "135--141",
journal = "Journal of Cultural Heritage",
issn = "1296-2074",
publisher = "Elsevier Masson",

}

TY - JOUR

T1 - Eco-compatible protective treatments on an Italian historic mortar (XIV century)

AU - Taglieri, Giuliana

AU - Daniele, Valeria

AU - Rosatelli, Gianluigi

AU - Sfarra, Stefano

AU - Mascolo, Maria Cristina

AU - Mondelli, Claudia

PY - 2017/5/1

Y1 - 2017/5/1

N2 - This paper reports significant results about the effects of repeated treatments to protect a mediaeval Italian mortar from capillarity-absorbed water, by using for the treatments, our no-commercial hydro-alcoholic suspensions of calcium hydroxide nanoparticles (nanolime). The mortars samples came from the historical site, where preliminary thermographic inspection were performed to detect the damp zones. Before treatments, the samples were analyzed from a mineralogical and chemical point of view, by means of several techniques, as optical microscopy (OM), thin section observations (PFM), porosimetric investigations, X-ray fluorescence (XRF), X-ray diffraction (XRD), infrared spectroscopy (FT-IR) and thermal analysis (TG-DTA). The size-grading curve of the aggregate and the binder/aggregate ratio were examined too. Then, the efficacy of nanolime protective treatments on this mortar versus the nanolime concentrations was investigated. For this aim, capillarity tests as well as porosimetric investigations, before and after the treatments, were performed. The obtained results were remarkably promising both in terms of the reduction of water absorbed by capillarity (up to 60%) together with an adequate decrease of porosity (up to 23%), fixing the protective effect of such eco-friendly and very compatible approach.

AB - This paper reports significant results about the effects of repeated treatments to protect a mediaeval Italian mortar from capillarity-absorbed water, by using for the treatments, our no-commercial hydro-alcoholic suspensions of calcium hydroxide nanoparticles (nanolime). The mortars samples came from the historical site, where preliminary thermographic inspection were performed to detect the damp zones. Before treatments, the samples were analyzed from a mineralogical and chemical point of view, by means of several techniques, as optical microscopy (OM), thin section observations (PFM), porosimetric investigations, X-ray fluorescence (XRF), X-ray diffraction (XRD), infrared spectroscopy (FT-IR) and thermal analysis (TG-DTA). The size-grading curve of the aggregate and the binder/aggregate ratio were examined too. Then, the efficacy of nanolime protective treatments on this mortar versus the nanolime concentrations was investigated. For this aim, capillarity tests as well as porosimetric investigations, before and after the treatments, were performed. The obtained results were remarkably promising both in terms of the reduction of water absorbed by capillarity (up to 60%) together with an adequate decrease of porosity (up to 23%), fixing the protective effect of such eco-friendly and very compatible approach.

KW - Characterization

KW - Historic mortars

KW - Nanoparticles

KW - Protective treatments

KW - Water absorption

UR - http://www.scopus.com/inward/record.url?scp=85009830699&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85009830699&partnerID=8YFLogxK

U2 - 10.1016/j.culher.2016.12.008

DO - 10.1016/j.culher.2016.12.008

M3 - Article

VL - 25

SP - 135

EP - 141

JO - Journal of Cultural Heritage

JF - Journal of Cultural Heritage

SN - 1296-2074

ER -