A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Carbonation evolution of lime putty coatings with mussel shell aggregate
Highlights The density increase rate due to carbonation is higher in mussel mortars. The organic matter content modifies the microstructure of CaCO3 polymorphs. Mussel organic matter promotes water retention in lime mortars. Mussel shell slows down carbonation at young ages, but promotes it at longer ages. Porosity and ITZ of mussel shell mortars significantly affect mechanical performance.
Abstract The carbonation process is studied from young ages up to 2 years in mortars with fine mussel shell aggregate. Mussel shell aggregate affects lime mortars due to its shape (angular and flaky) and texture (smooth), and also its microstructure consisting of 2% organic matter in the form of protein and polysaccharides (chitin). Its effect is analysed in pore structure, microstructure by SEM, carbonation by phenolphthalein, and mechanical strength by means of compressive strength and ultrasounds. Conclusions show that the use of mussel shell aggregate delays carbonation at young ages (28 days) while increasing the total carbonated area at longer ages (1 and 2 years). These two different trends can be seen in all of the properties analysed.
Carbonation evolution of lime putty coatings with mussel shell aggregate
Highlights The density increase rate due to carbonation is higher in mussel mortars. The organic matter content modifies the microstructure of CaCO3 polymorphs. Mussel organic matter promotes water retention in lime mortars. Mussel shell slows down carbonation at young ages, but promotes it at longer ages. Porosity and ITZ of mussel shell mortars significantly affect mechanical performance.
Abstract The carbonation process is studied from young ages up to 2 years in mortars with fine mussel shell aggregate. Mussel shell aggregate affects lime mortars due to its shape (angular and flaky) and texture (smooth), and also its microstructure consisting of 2% organic matter in the form of protein and polysaccharides (chitin). Its effect is analysed in pore structure, microstructure by SEM, carbonation by phenolphthalein, and mechanical strength by means of compressive strength and ultrasounds. Conclusions show that the use of mussel shell aggregate delays carbonation at young ages (28 days) while increasing the total carbonated area at longer ages (1 and 2 years). These two different trends can be seen in all of the properties analysed.
Carbonation evolution of lime putty coatings with mussel shell aggregate
Martínez-García, Carolina (author) / González-Fonteboa, Belén (author) / Carro-López, Diego (author) / Martínez-Abella, Fernando (author)
2020-07-06
Article (Journal)
Electronic Resource
English
The carbonation of lime mortars: the influence of aging of lime putty
| British Library Conference Proceedings | 2002
Engineering Index Backfile | 1941
Hygrothermal Behaviour of Air Lime Coatings with Mussel Shell Sand
| Trans Tech Publications | 2022
Effects of aging on lime putty
| British Library Conference Proceedings | 2000