Eric F. Hansen

TL;DR: Awareness of the need for compatible materials for the preservation of the architectural heritage has resulted in the revival of lime-based mortar technology and applications as discussed by the authors, however, knowledge of knowledge of...

TL;DR: The observed irreversible colloidal behavior associated with drying of Ca(OH)2 dispersions has important implications in heritage conservation, particularly considering that nowadays hydrated lime is often the preferred alternative to portland cement in architectural heritage conservation.

TL;DR: In this paper, a model for portlandite evolution is proposed and discussed, based upon differences in solubility between {0001} basal pinacoid faces, and {1010} prism faces.

TL;DR: In this article, the results of a meeting held in London in December 2000, sponsored by English Heritage and The Getty Conservation Institute, have been incorporated into the results presented in this paper.

TL;DR: The effects of different relative humidity on some physical properties of three types of calfskin parchment (vellum) were investigated in this article, and the results indicated that although no particular level of relative humidity can be excluded in general from consideration as a storage or display cohdition on the basis of tensile testing data alone, at 11% RH there is an adverse effect on some individual tensile properties.