期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 148, 期 -, 页码 571-578出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2017.05.097
关键词
Hydroxyapatite; Limestone; Consolidation; Ff-IR; Ion chromatography; Penetration depth; Calcium phosphates; Porous materials; Pore system; Cultural heritage
When consolidants are applied to porous stones, redistribution may occur inside the pore system after the treatment application, which influences their final penetration depth and performance. In this paper, the kinetics of redistribution were investigated for a 2-step hydroxyapatite-based consolidant, applied by brushing and immersion. The results of the study indicate that both the application method and the drying phase are crucial in determining the final penetration depth, the amount of hydroxyapatite that forms and the redistribution kinetics. In all cases, the limewater poultice applied during the second step of the treatment proved to be effective in removing soluble compounds. (C) 2017 Elsevier Ltd. All rights reserved.
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