Next Article in Journal
Vascularized Lower Respiratory-Physiology-On-A-Chip
Previous Article in Journal
Considering Uncertainties of Key Performance Indicators in Wind Turbine Operation
Previous Article in Special Issue
Pore Structure Degradation of Different Cement Mortars Exposed to Sulphuric Acid
Open AccessFeature PaperArticle

Sustainable Improvement of Zeolitic Pyroclastic Soils for the Preservation of Historical Sites

1
Department of Engineering, University of Perugia, 06125 Perugia, Italy
2
Department of Physics and Geology, University of Perugia, 06123 Perugia, Italy
3
Lab. Terra S.n.c, 06055 Papiano (PG), Italy
4
Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, 44322 Nantes, France
5
Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, 03043 Cassino, Italy
6
Department of Earth Science, Resources and Environment, University of Naples Federico II, 80126 Napoli, Italy
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(3), 899; https://doi.org/10.3390/app10030899
Received: 6 January 2020 / Revised: 24 January 2020 / Accepted: 26 January 2020 / Published: 30 January 2020
(This article belongs to the Special Issue New Trends of Sustainability in Civil Engineering and Architecture)
Climate changes are inducing a modification of environmental loads on historical sites, requiring new actions towards their conservation. In the paper, the results of an experimental work on sustainable improvement of a pyroclastic soil belonging to the Orvieto cliff (Central Italy) have been investigated in the perspective of its preservation from degradation. The slightly coherent facies of Orvieto Ignimbrite (pozzolana) was treated with hydrated lime and the subsequent chemo-physical evolution was investigated by means of a multi-scale analysis. The beneficial effects obtained from the improvement in terms of mechanical behaviour were interpreted and correlated to the chemo-physical evolution of the system. Microstructural analyses, X-ray diffractometry, thermo-gravimetric analyses (DTG), SEM observations, mercury intrusion porosimetry performed on raw and treated samples, showed that the pozzolanic reactions develop since the very beginning in the system and that the observed mechanical improvement of the treated soil is mainly due to the formation of calcium silicate hydrates (CSH) and calcium aluminate hydrates (CAH). In the paper, the mechanical improvement is put in evidence by comparing the results of oedometer tests performed on both raw and treated samples. View Full-Text
Keywords: sustainability; soil improvement; lime treatment; pyroclastic soils; hydro-mechanical behaviour; compressibility sustainability; soil improvement; lime treatment; pyroclastic soils; hydro-mechanical behaviour; compressibility
Show Figures

Figure 1

MDPI and ACS Style

Cecconi, M.; Cambi, C.; Carrisi, S.; Deneele, D.; Vitale, E.; Russo, G. Sustainable Improvement of Zeolitic Pyroclastic Soils for the Preservation of Historical Sites. Appl. Sci. 2020, 10, 899. https://doi.org/10.3390/app10030899

AMA Style

Cecconi M, Cambi C, Carrisi S, Deneele D, Vitale E, Russo G. Sustainable Improvement of Zeolitic Pyroclastic Soils for the Preservation of Historical Sites. Applied Sciences. 2020; 10(3):899. https://doi.org/10.3390/app10030899

Chicago/Turabian Style

Cecconi, Manuela; Cambi, Costanza; Carrisi, Stefano; Deneele, Dimitri; Vitale, Enza; Russo, Giacomo. 2020. "Sustainable Improvement of Zeolitic Pyroclastic Soils for the Preservation of Historical Sites" Appl. Sci. 10, no. 3: 899. https://doi.org/10.3390/app10030899

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop