Rheology of fresh mortar

Resumen: Los materiales basados en cementos presentan una enorme importancia tecnológica. Para una correcta utilización es necesario que sea posible su transporte y conformado en un estado “fresco”, por lo que es fundamental controlar su comportamiento reológico. En esta conferencia se describe el comportamiento reológico de morteros y productos relacionados, en situaciones prácticas, donde se tratarán casos concretos, y se discutirán las principales características de cada comportamiento. Además, se presentarán los nexos de unión entre la reología y la tecnología de los materiales de la construcción. Abstract: Cement-based materials are of enormous technological importance and their satisfactory performance depends on being able to transport and mould them in the freshly mixed state. This conference describes the rheology of mortars and related products in the context of practical situations, and deals with testing and measurement, together with the main features of their behaviour. It explores the links between rheology and technology.

"The Cure of Bytyng" in London, Wellcome Library, MS 411 (ff. 56r-61r)

London, Wellcome Library, MS 411 is a codex in one volume which dates from the late fifteenth century. It houses a collection of practical treatises and tracts in English and Latin, in verse as well as in prose, on different topics including prognostications, nativities, medical astrology, reproduction, toxicology, bloodletting, etc. In this paper, the Middle English anonymous treatise on venomous bites, written in prose and held in folios 56r to 61r, is taken into consideration. The objective is twofold: on the one hand, to examine the contents, transmission and sources of the text and, on the other, to describe it from a physical standpoint. Investigation on those aspects of the treatise contained in Wellcome MS 411 can shed some light on the function and diffusion of the text, and may also prove significant for a better understanding of it.