Binder characterisation of mortars used at different ages in the San Lorenzo church in Milan

Bertolini, Luca; Carsana, Maddalena; Gastaldi, Matteo; Lollini, Federica; Redaelli, Elena

doi:10.1016/j.matchar.2013.03.008

Cited by 30 publications

(17 citation statements)

References 30 publications

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“…7, the CaO/H 2 O ratio versus CO 2 percentage of mixtures obtained mixing pure calcite with C-S-H phases (characterized by 1.5:1:0.5 and 0.8:1:2.5 ratios [44]), Ca(OH) 2 and Mg(OH) 2 in various proportions are reported as dashed lines for the sake of comparison with those determined on the analyzed samples. As shown in Fig.…”

Section: Binder Identification and Characterizationmentioning

confidence: 99%

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Characterization of historical mortars from the bell tower of St. Nicholas church (Pisa, Italy)

Lezzerini

Legnaioli

Lorenzetti

et al. 2014

Construction and Building Materials

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Section: Binder Identification and Characterizationmentioning

confidence: 99%

“…Recent papers deal with mortars as an excellent source for identifying the provenance of the building materials used in historical monuments and for acquiring detailed information on their construction phases [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Characterization of historical mortars from the bell tower of St. Nicholas church (Pisa, Italy)

Lezzerini

Legnaioli

Lorenzetti

et al. 2014

Construction and Building Materials

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“…Even though the moisture content seems to have a dominant influence on the corrosion rate of carbon steel embedded in mortar materials, investigating the effect of the type of mortar is nevertheless of interest, considering the great variability of materials that can be found in ancient masonry and the heterogeneous nature of these materials [7,[19][20][21][22]. Especially, the type of binder may influence: the microstructure, the chemical composition of the hydration products and the pore solution in the mortar.…”

Section: Effect Of Bindermentioning

confidence: 99%

Corrosion behaviour of metal inserts in simulated ancient masonry mortars

Carsana

Marra

Bertolini

2015

Construction and Building Materials

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h i g h l i g h t sCorrosion of metal inserts in aerial and hydraulic mortars was studied. Carbon steel, stainless steel and titanium inserts were considered. Mortar composition had a secondary effect on the corrosion rate compared to the role of moisture. High corrosion rate was measured only for carbon steel in mortars exposed to 95% RH or water suction. Mortar resistivity was found to be a reliable parameter to assess corrosion of embedded inserts. a r t i c l e i n f o b s t r a c tCorrosion of metal inserts may be detrimental to the durability of masonry. The paper discusses corrosion of carbon steel, stainless steel and titanium embedded in aerial and hydraulic mortars simulating those of ancient walls. The effects of temperature (5-40°C), moisture (65-95% RH and water suction) and electrical resistivity of mortars on the corrosion of metal inserts are discussed. Results showed that the corrosion rate of embedded steel, regardless of the mortar composition, is negligible in mortars exposed to 65-80% RH (even at 40°C) and modest even at 95% RH, while high values were obtained in the presence of water uptake.

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“…Gypsum is one of the oldest binders used by humanity. It was employed in the earliest Egyptian pyramids [2], and recently, it has been reported in most samples of a church founded between the fourth and fifth century at the end of the period when Milan was the capital of the Roman Empire [3]. Mortars with other components such as lime and whale oil have appeared over the years, thus improving the properties of this material [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Characterization of the Lime Mortars of the Rui Barbosa House Museum in Rio De Janeiro, Brazil

2018

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Abstract:The aim of this research is to characterize the mortars of the Rui Barbosa House Museum, built in 1850, in the city of Rio de Janeiro, Brazil, using X-ray diffraction (XRD), gel-CSH determination, Fourier Transform Infrared spectrometry (FTIR), Wavelength-Dispersive X-ray Fluorescence spectrometry (WDXRF), Thermo gravimetric analysis (TG-DTG), and granulometric analysis. Also, petrographic and physical characteristics such as porosity, water absorption, and apparent density of the mortars were used to identify the raw materials employed in their preparation. Mineralogical associations found are similar (quartz, calcite, kaolinite, microcline, muscovite, and albite) for the majority of samples and only vary in their proportions; the most prominent phases are quartz and calcite. The collected data, indicating that the binder is hydrated lime, lead us to conclude that the analyzed samples are lime mortars, discarding the possibility of cement as the binder material. Two samples, located on the corner of the building, which underwent repairs, present a differentiated behavior, with high levels of dolomite and the presence of pozzolanic material, with greater water absorption and higher density, indicating the use of a different mortar type. In addition, it was verified that the WDXRF and XRD methods are able to determine the trace element composition with comparable precision with respect to the methodological approach proposed by Teutonico (1988). In addition, it has been verified that the major pollutant causing degradation of building are sulfur emitted by the vehicles and saline spray.

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Binder characterisation of mortars used at different ages in the San Lorenzo church in Milan

Cited by 30 publications

References 30 publications

Characterization of historical mortars from the bell tower of St. Nicholas church (Pisa, Italy)

Characterization of historical mortars from the bell tower of St. Nicholas church (Pisa, Italy)

Corrosion behaviour of metal inserts in simulated ancient masonry mortars

Characterization of the Lime Mortars of the Rui Barbosa House Museum in Rio De Janeiro, Brazil

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