Influence of brick and mortar properties on bioreceptivity of masonry

Results from experimental research

Journal article (2021)

Authors

B. Lubelli Heritage & Technology - Architecture and the Built Environment
J. Moerman Design of Constrution - Architecture and the Built Environment
R. Esposito Applied Mechanics - CEG
K.B. Mulder Design of Constrution - Architecture and the Built Environment
Research Group
Heritage & Technology (Architecture and the Built Environment) (TU Delft)
Copyright: © 2021 B. Lubelli, J. Moerman, R. Esposito, K.B. Mulder
DOI
help_outline
https://doi.org/10.1016/j.conbuildmat.2020.121036
Porosity Mortar Binder Bioreceptivity Brick Mechanical strength
More Info
expand_more

Published Date

2021

Language

English

Faculty

Architecture and the Built Environment

Department

Architectural Engineering +Technology

Research Group

Heritage & Technology

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.