Influence of brick and mortar properties on bioreceptivity of masonry

Results from experimental research

Journal Article (2021)
Author(s)

B Lubelli (TU Delft - Heritage & Technology)

J. Moerman (TU Delft - Design of Constrution)

R. Esposito (TU Delft - Applied Mechanics)

K.B. Mulder (TU Delft - Design of Constrution)

Research Group
Heritage & Technology
Copyright
© 2021 B. Lubelli, J. Moerman, R. Esposito, K.B. Mulder
DOI related publication
https://doi.org/10.1016/j.conbuildmat.2020.121036
More Info
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Publication Year
2021
Language
English
Copyright
© 2021 B. Lubelli, J. Moerman, R. Esposito, K.B. Mulder
Research Group
Heritage & Technology
Volume number
266
Reuse Rights

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Abstract

The effect of mortar and brick properties on the growth of ivy-leaved toadflax (Cymbalaria muralis) and yellow corydalis (Pseudofumaria lutea) has been investigated in laboratory. Different mortar compositions were designed and tested in combination with two different bricks. Highly porous bricks and mortars showed good bioreceptivity; mortars with lime-trass and, in lower extent, those with natural hydraulic lime binder, gave the best results in terms of bioreceptivity. The addition of vermiculite to the mortar was beneficial for plant growth. The brick-mortar combinations most favourable for plant growth were those with estimated low compressive and flexural bond strength values. Proposals are advanced for obtaining a compromise between mechanical strength and bioreceptivity.