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A platform for research: civil engineering, architecture and urbanism
An innovative phosphate-based consolidant for limestone. Part 2: Durability in comparison with ethyl silicate
https://orcid.org/0000-0003-0716-510X
Highlights Durability of a new phosphate consolidant for limestone was investigated. Wetting–drying, freezing–thawing and salt crystallization cycles were performed. Changes in weight, dynamic modulus, tensile strength and porosity were monitored. Limestone samples treated with the phosphate consolidant exhibited a good behaviour. Comparative samples treated with ethyl silicate underwent sensible deterioration.
Abstract The durability of a new phosphate consolidant for limestone, based on formation of hydroxyapatite (HAP), was investigated in comparison with ethyl silicate (ES). Untreated, HAP- and ES-treated samples were subjected to repeated wetting–drying, freezing–thawing and salt crystallization cycles. The weathering effects were monitored in terms of alterations in visual appearance, weight, dynamic elastic modulus, tensile strength and pore size distribution. HAP samples performed better than untreated samples and underwent less deterioration in original properties than ES samples. ES samples, subjected to salt crystallization cycles when the treated layer was still hydrophobic, experienced detachment of the consolidated layer.
An innovative phosphate-based consolidant for limestone. Part 2: Durability in comparison with ethyl silicate
https://orcid.org/0000-0003-0716-510X
Highlights Durability of a new phosphate consolidant for limestone was investigated. Wetting–drying, freezing–thawing and salt crystallization cycles were performed. Changes in weight, dynamic modulus, tensile strength and porosity were monitored. Limestone samples treated with the phosphate consolidant exhibited a good behaviour. Comparative samples treated with ethyl silicate underwent sensible deterioration.
Abstract The durability of a new phosphate consolidant for limestone, based on formation of hydroxyapatite (HAP), was investigated in comparison with ethyl silicate (ES). Untreated, HAP- and ES-treated samples were subjected to repeated wetting–drying, freezing–thawing and salt crystallization cycles. The weathering effects were monitored in terms of alterations in visual appearance, weight, dynamic elastic modulus, tensile strength and pore size distribution. HAP samples performed better than untreated samples and underwent less deterioration in original properties than ES samples. ES samples, subjected to salt crystallization cycles when the treated layer was still hydrophobic, experienced detachment of the consolidated layer.
An innovative phosphate-based consolidant for limestone. Part 2: Durability in comparison with ethyl silicate
https://orcid.org/0000-0003-0716-510X
Highlights Durability of a new phosphate consolidant for limestone was investigated. Wetting–drying, freezing–thawing and salt crystallization cycles were performed. Changes in weight, dynamic modulus, tensile strength and porosity were monitored. Limestone samples treated with the phosphate consolidant exhibited a good behaviour. Comparative samples treated with ethyl silicate underwent sensible deterioration.
Abstract The durability of a new phosphate consolidant for limestone, based on formation of hydroxyapatite (HAP), was investigated in comparison with ethyl silicate (ES). Untreated, HAP- and ES-treated samples were subjected to repeated wetting–drying, freezing–thawing and salt crystallization cycles. The weathering effects were monitored in terms of alterations in visual appearance, weight, dynamic elastic modulus, tensile strength and pore size distribution. HAP samples performed better than untreated samples and underwent less deterioration in original properties than ES samples. ES samples, subjected to salt crystallization cycles when the treated layer was still hydrophobic, experienced detachment of the consolidated layer.
An innovative phosphate-based consolidant for limestone. Part 2: Durability in comparison with ethyl silicate
Sassoni, Enrico (author) / Graziani, Gabriela (author) / Franzoni, Elisa (author)
Construction and Building Materials ; 102 ; 931-942
2015-10-28
12 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2016
| British Library Online Contents | 2016