1st International Conference on Engineering and Applied Natural Sciences, Konya, Türkiye, 10 - 13 Mayıs 2022, ss.2378-2384
In present work, the effect of bentonite clay is researched on the
removal of andesitic stone contaminated with magnesium sulphate salt. Due to
different reasons, the building stones are affected negatively over time by the
influence of some harmful salts. The damage caused by the salts usually is seen
as accumulation and dusting on the surface of the stone. Also, one of these
contaminating salts is magnesium sulphate. In this way, due to the hygroscopic
nature of MgSO4 penetrating into the stone, it physically damages
the stone compared to their chemical composition and reduces the life of
historical buildings. In the experiments, the stone samples contaminated with
salt are covered with a bentonite clay which is brought to liquid confinement. Significant
level of salt removal is obtained in the treatment of magnesium sulphate
containing andesite stone samples with bentonite clay.