Cohesion Gain Induced by Nanosilica Consolidants for Monumental Stone Restoration.

ABSTRACT: Mineral nanoparticle suspensions with consolidating properties have been successfully applied in the restoration of weathered architectural surfaces. However, the design of these consolidants is usually stone-specific and based on trial and error, which prevents their robust operation for a wide range of highly heterogeneous monumental stone materials. In this work, we develop a facile and versatile method to systematically study the consolidating mechanisms in action using a surface forces apparatus (SFA) with real-time force sensing and an X-ray surface forces apparatus (X-SFA). We directly assess the mechanical tensile strength of nanosilica-treated single mineral contacts and show a sharp increase in their cohesion. The smallest used nanoparticles provide an order of magnitude stronger

SUBMITTER: Dziadkowiec J 

PROVIDER: S-EPMC9178914 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature