Characterization of concrete surface in relation to graffiti protection coatings

被引：20
|
作者：
Neto, Elsa [1 ,2 ]
Magina, Sandra [2 ]
Camoes, Aires [1 ]
Begonha, Arlindo [3 ]
Evtuguin, Dmitry V. [2 ]
Cachim, Paulo [4 ]
机构：
[1] Univ Minho, Dept Civil Engn, CTAC Res Grp Terr Environm & Construct, P-4800058 Guimaraes, Portugal
[2] Univ Aveiro, Dept Chem, CICECO Aveiro Inst Mat, P-3810193 Aveiro, Portugal
[3] Univ Porto, Fac Engn, P-4200465 Oporto, Portugal
[4] Univ Aveiro, Dept Civil Engn, RISCO Aveiro Res Ctr Risks & Sustainabil Construc, P-3810193 Aveiro, Portugal
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2016年 / 102卷
关键词：
Concrete; Anti-graffiti protection; SEM-EDS; Wettability; Contact angle; Surface free energy; Wetting envelope; FREE-ENERGY;
D O I：
10.1016/j.conbuildmat.2015.11.012
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The removal of graffiti causes irreversible deterioration of fair-faced concrete. The protective products are often selected without counting the properties of concrete surface leading to its insufficient protection. Chemical and micro-structural effects of anti-graffiti products on the concrete surface were analyzed in relation to its protection efficiency against graffiti, paints. Contact angles and wetting envelope graphs were examined, allowing the understanding and prediction of wetting behavior of concrete surfaces. The obtained results revealed the changes on the concrete surface produced by graffiti, graffiti protection and graffiti removal products, showing the advantage of permanent protection coating over sacrificial one. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：435 / 444
页数：10
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