Thermal, physical and mechanical characterization of volcanic tuff masonries for the restoration of historic buildings
Thermal, physical and mechanical characterization of volcanic tuff masonries for the restoration of historic buildings
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DOI：
10.3989/mc.2019.12917
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发表时间：
2019-01-01
影响因子：
2.1
通讯作者：
Moreno-Fernandez, E.
中科院分区：
文献类型：
--
作者：
Barbero-Barrera, M. M.;Flores-Medina, N.;Moreno-Fernandez, E.
对建筑材料的深入了解对于保护它们至关重要。凝灰岩是加那利群岛火山岩的主要类型之一。它们主要用于砖石或作为立面装饰部分的填充物。在这两种情况下，它们都受到保护，以保证其耐用性。然而，近年来，效果图已经被淘汰，石头已经暴露在元素中。在本文中，两种类型的加那利岛火山凝灰岩的特点，从物理和力学的角度来看，以及他们的能量守恒，为了更好地了解他们的行为和分析的标准，以保护他们。与干燥条件相比，在潮湿条件下，热导率和通量增加2-3倍。这一点，再加上它们的高孔隙率，要求使用渲染来避免石材腐烂，同时改善生活条件。
An in-depth knowledge of building materials is essential in order to preserve them. Tuffs are one of the main types volcanic rocks in the Canary Islands. They are mainly used in masonry or as a filler of the ornamental parts of the facades. In both cases, they have been protected to guarantee their durability. However, in recent years, the renderings have been eliminated and the stone has been exposed to the elements. In this paper, two types of Canary-Island volcanic tuffs were characterized from a physical and mechanical point of view as well as their energy conservation, in order to better understand their behaviour and analyze the criteria for preserving them. Thermal conductivity and fluxes increase 2-3 times in wet conditions, as compared to dry ones. This, together with their high porosity demands the use of renderings to avoid stone decay, and at the same time improving living conditions.