Tanaquil Berto

Followers

Following

Public Views

Andrej Dujella

University of Zagreb

Hemin Koyi

Uppsala University

Jana Javornik

University of East London

Graham Martin

University of Leicester

Gwen Robbins Schug

University of North Carolina at Greensboro

Gabriel Gutierrez-Alonso

University of Salamanca

John Sutton

Macquarie University

Eros Carvalho

Universidade Federal do Rio Grande do Sul

Kevin Arbuckle

Swansea University

Jesper Hoffmeyer

University of Copenhagen

Uploads

Papers by Tanaquil Berto

Proefrestauratie van natuursteen en bepleistering. Casus: Abdij van Villers, Monnikenrefter

The Transversal Heritage of Maastricht Stone, a Potential Global Heritage Stone Resource from Belgium and the Netherlands

Geoheritage

Maastricht Stone is a soft and porous, pale limestone from the Krijtland, a geological region wit... more Maastricht Stone is a soft and porous, pale limestone from the Krijtland, a geological region with Late Cretaceous outcrops across the border of Belgium, The Netherlands, and Germany. It has a remarkably high porosity and low strength; however, the stone is very durable in a diverse range of outdoor applications. The stone has been used since Roman times, excavated in some opencast and many underground quarries. Its main use is situated in the period between the fifteenth and first half of the twentieth century. The local community has always been strongly engaged with the production of the stone and the resulting underground landscape, which has served for secondary purposes as shelter, mushroom cultivation, and tourism. Today, the region is appreciated for this particular landscape and the recognisability of the built heritage in Maastricht Stone. The stone is a preferred substrate for scientific research in stone conservation, due to of the homogeneity of the blocks from the last remaining active quarry in combination with its specific petrophysical properties. Therefore, Maastricht Stone is proposed as a ‘Global Heritage Stone Resource’ to augment its visibility and understanding.

myresearchspace.uws.ac.uk Science and Art: A Future for Stone

Berto, T., Godts, S. and De Clercq, H. (2016). The Effects of Commercial Ethyl Silicate Based Consolidation Products on Limestone., 2016

The loss of cohesion of stone materials, mainly caused by weathering, is a common problem in the ... more The loss of cohesion of stone materials, mainly caused by weathering, is a common problem in the conservation of our cultural heritage. When granular disintegration occurs, a consolidation treatment with silicone compounds, specifically ethyl silicate (tetraethoxysilane, TEOS) is often chosen in order to improve cohesion between the material particles. Today there is a wide variety of TEOS-based products available on the market with different compositions and it is not at all clear which product(s) are more appropriate than others for a particular case. This paper describes the results of a laboratory research carried out at KIK-IRPA that aims to better understand the behaviour of eight different ethyl silicate products. The consolidation effect is related to three types of treatment applications, each time based on capillary absorption on two different types of limestone. The influence of product and application type is evaluated in terms of the quantity of absorbed product and amount of deposited gel (SiO2). The consolidation effect is assessed by results of drilling resistance measurements (DRMS) and capillary water absorption. The results demonstrate that a major difference in consolidating effect can be distinguished and that there is a different influence of the product type on the final water absorption capacity. Furthermore a high amount of applied product is not always beneficial to the consolidation effect and reduces the water absorption capacity substantially.

Download