Valorization of organic additions in restorative lime mortars: Spent cooking oil and albumen

Preliminary Valorization of Climatic Conditions Effects on Curing of Air Lime-Based Mortars for Restorative Applications in the Pasargadae and Persepolis World Heritage Sites

“…The mortars produced and cured in laboratory and site were characterized, and their open porosity (by MIP) and water absorption after 24 h immersion (WA24h) values are reported in Table 4. As has been already observed in previous studies, additions of oils (and usually other organics) in mortar mixes increase the formations of air voids [10,12,15]. This is normally clear from superficial formation of air bubbles when mortars are immersed in water during water absorption tests.…”

“…Generally, oil additions in lime mortars had demonstrated considerable reduction in carbonation rates. This was due to a reduction of carbon dioxide gain for cavities and surfaces [12,15]. Nevertheless, Figure 5 demonstrates proper values of carbonation for both oiled mortars and non-oiled mortars when cured in site condition.…”

“…Restoration activities in the developing countries with numerous cultural heritage sites is highly dependent on economy of conservation [14]. Added to the environmental aspects, economically feasible material solutions can broaden the conservation domain potentials [15][16][17]. Moreover, one of the principles of the ancient Persian architecture had been dependency on the materials from the site surroundings.…”

Gypsum based mixes for conservation purposes: evaluation of microstructural and mechanical features

“…Choices in stuccoworks making, for example low and high reliefs, mouldings and in the round statues implied the workability properties of the mixes used. For these reasons gypsum was often mixed with both organic and inorganic natural and artificial materials, such as lime putty and organic additives (8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20). The blend with animal glue and pigments was widely used in painting ground layers and in gilded artworks, especially in the south of Europe (21)(22)(23).…”

Μεθοδολογία Σχεδιασμού Συμβατών Και Επιτελεστικών Κονιαμάτων Αποκατάστασης Για Την Αντισεισμική Προστασία Μνημείων Και Ιστορικών Κατασκευών

“…Άλλο παράδειγμα αποτελεί η διερεύνηση της χρήσης αυγών (αλμπουμίνη, το ασπράδι των αυγών) ως πρόσθετο σε παραδοσιακά κονιάματα, κάτι το οποίο αναφέρεται ιδιαίτερα σε κατασκευές όπως γέφυρες, παγκοσμίως. Οι Pahlavan et al [159] για παράδειγμα διερεύνησαν τη χρήση αλμπουμίνης ως πρόσθετο ασβεστιτικών κονιαμάτων, μόνη της, παράλληλα με τη χρήση κεραμάλευρου, καθώς και παράλληλα και με τη χρήση έλαιους.…”