Characterization of plasters from the church of San Niccolo di Comelico (Belluno - Northern Italy)

Thermal, mineralogical and chemical studies of the mortars used in the cathedral of Pamplona (Spain)

“…Its presence in larger amounts (of the order of a higher scale in percentage terms), except the nitrates in the zones mentioned. This fact has already been highlighted in the bibliography [1], where the chlorides appear as the most frequent soluble salts in the mortars analysed, and even as the only salts to be detected. However, it is not possible to generalise from this, although in mortars from maritime environments a higher content of these anions is to be expected [14].…”

“…The aim was to evaluate overall activity in soluble salts that may affect the state of the sample [12]. Results refer to a suspension that contains 1 mg of sample for mL, expressed in S.cm The results of the determination of anions show quite low Cl -content in comparison to some studies (0.67-2.27%) [1], although without reaching the extreme values recorded in some studies (<0.06%, [13]). …”

“…In some previous papers the importance of characterising the binding materials and mortars used by ancient builders has been highlighted [1][2][3][4]. In this study different samples were taken from the mortars of walls and domes from the inside of the cathedral of Pamplona (1415-1512).…”

Study of ancient dolomitic mortars of the church of Santa Marı́a de Zamarce in Navarra (Spain): comparison with simulated standards

“…iii) It could be put forward the occurrence of dolomite phases as a result of a poor burning process of dolomitic limestone, but it could not justify either the behaviour of the burned fraction or some of the aforementioned problems [10].…”

“…Certain discrepancies in the specialised literature have also motivated this work. The controversy is about the occurrence of phases originated during the setting of this type of mortars (for example hydromagnesite, HY): whereas Bruni et al [6] and Dheilly et al [7] have indicated that the carbonation of a dolomitic lime (that is, containing magnesium hydroxide -brucite, Mg(OH) 2 ) can originate usually hydromagnesite, and Vecchio et al [8] have determined the presence of HY in Italian dolomitic mortars (11 th and 14 th centuries), Newton and Sharp [9] have only found magnesite and brucite in some dolomitic mortars and Alessandrini et al [10] have not determined hydromagnesite in the binder fraction from some dolomitic mortars. Botha and Strydom [11] state as conclusion in their work that HY only can be prepared from magnesium hydroxide if the experimental conditions are chosen carefully (and with a CO 2 flow of 190 mL min -1 ).…”