A chemometric approach to the characterisation of historical mortars
- Department of Chemical and Environmental Sciences, University of Insubria, Via Valleggio 11, 22100 Como (Italy)
- C.N.R. Institute for Conservation and Valorisation of Cultural Heritage, Section 'Gino Bozza', P.zza Leonardo da Vinci 32, 20133 Milan (Italy)
The compositional knowledge of historical mortars is of great concern in case of provenance and dating investigations and of conservation works since the nature of the raw materials suggests the most compatible conservation products. The classic characterisation usually goes through various analytical determinations, while conservation laboratories call for simple and quick analyses able to enlighten the nature of mortars, usually in terms of the binder fraction. A chemometric approach to the matter is here undertaken. Specimens of mortars were prepared with calcitic and dolomitic binders and analysed by Atomic Spectroscopy. Principal Components Analysis (PCA) was used to investigate the features of specimens and samples. A Partial Least Square (PLS1) regression was done in order to predict the binder/aggregate ratio. The model was applied to historical mortars from the churches of St. Lorenzo (Milan) and St. Abbondio (Como). The accordance between the predictive model and the real samples is discussed.
- OSTI ID:
- 20871557
- Journal Information:
- Cement and Concrete Research, Vol. 36, Issue 6; Other Information: DOI: 10.1016/j.cemconres.2006.02.002; PII: S0008-8846(06)00033-0; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0008-8846
- Country of Publication:
- United States
- Language:
- English
Similar Records
Microscopic characterisation of old mortars from the Santa Maria Church in Evora
Bricks in historical buildings of Toledo City: characterisation and restoration