Influence of different types of solvent on the effectiveness of nanolime treatments on highly porous mortar substrates

OTERO, Jorge, STARINIERI, Vincenzo, CHAROLA, A.E. and TAGLIERI, Giuliana (2019). Influence of different types of solvent on the effectiveness of nanolime treatments on highly porous mortar substrates. Construction and Building Materials, 230, p. 117112.

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Abstract

Historic calcareous structures suffer from weathering processes that result in the loss of some of their original properties. Nanolime products represent an attractive choice for the consolidation of these substrates containing calcite due to their high chemical compatibility with the original structure. The effectiveness of nanolime products has been widely proven for superficial consolidation treatments (e.g. plasters and wall-paintings). However, its consolidation mechanism in highly porous substrates (e.g. limestones or lime mortars) still needs to be fully understood. The aim of this paper is to study the influence of different types of solvent on the effectiveness of nanolime treatments on highly porous lime-mortars. The consolidation effectiveness is investigated by evaluating changes on superficial cohesion, porosity, drilling resistance, water absorption by capillarity, drying rate and aesthetic properties. Results showed that nanolime dispersed in a mixture of isopropanol (50%) and water (50%) yielded slightly better consolidation properties in terms of reduction in porosity, increase in strength and penetration within coarse lime-mortars than nanolime dispersed in other solvents.

Item Type:	Article
Uncontrolled Keywords:	0905 Civil Engineering; 1202 Building; Building & Construction
Identification Number:	https://doi.org/10.1016/j.conbuildmat.2019.117112
Page Range:	p. 117112
SWORD Depositor:	Symplectic Elements
Depositing User:	Symplectic Elements
Date Deposited:	02 Oct 2019 10:58
Last Modified:	17 Mar 2021 22:15
URI:	https://shura.shu.ac.uk/id/eprint/25222

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