.png){kind=icon}
返回
Sacrificial mortars for surface desalination
.png){kind=icon}
PRE
AI
DOI：10.1016/j.conbuildmat.2018.04.029.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Four absorbent mortars were designed in this study and used as sacrificial desalinating media. The mortars comprised lime, sepiolite, nanosilica (72/3/25 by weight) and three admixtures (H2O2 and two commercial aerators) and had a liquid/solid ratio of 0.9, a mean porosity of 40% and a mean pore size of 0.8-0.7 mu m. These mortars were applied three times to ashlars exhibiting surface saline efflorescence on a church at Talamanca del Jarama, a town in the Spanish province of Madrid. The salts impregnating the wall were characterised with XRD, FTIR and Micro-Raman spectroscopy. The ion concentrations in the ashlars was studied with ion chromatography at 0.5 cm, 1.5 cm and 3.0 cm from the surface after each application and the inner and outer surfaces of the mortars were analysed with Micro-Raman spectroscopy to determine the desalinating efficacy of the mortars. The mortars designed mobilised and absorbed the soluble salts in the ashlars; as a rule, elimination was most effective in anions with a smaller ionic volume and therefore greater ionic mobility and when the salt concentration was high and superficially located. Three years after application of the desalinating mortars, the salt concentration in the ashlars treated was 50% lower than prior to treatment. (C) 2018 Elsevier Ltd. All rights reserved.
Keyword:
Desalination
Lime mortars
Sepiolite
Nanosilica
Dolostone
Heritage conservation
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
8
论文数:
4.5W
被引数:
27.9W
机构
引用论文
.png){kind=icon}
分享收藏分享收藏Electrokinetic desalination of protruded areas of stone avoiding the direct contact with electrodes
OAAI
OAAI分享收藏分享收藏分享收藏
查看更多内容