Bio-erosion refers to the attachment of fungi or plants to the surface of stone in nature. When there is water and suitable temperature, it begins to grow and develop, causing erosion of stone and forming various stains. Therefore, the decorative effect of the stone veneer is damaged, and the decomposition and destruction of the stone is promoted, which affects the life of the stone.
First, the occurrence of its symptoms has the following two elements:
1. Water is an indispensable factor in the survival of living things.
2, the specific environment - the appropriate temperature.
Second, the factors of the formation of the disease
1. The growth of bryophytes causes erosion. Such as: land money, gourd, wall hangings, etc.
2. The survival of a group of special organisms in the symbiotic ecosystem of certain algae organisms and fungi causes erosion. Such as: lichens and so on.
3, the coverage of some higher plants, the pseudo stems attached to the surface of the stone caused by erosion. Such as: ivy and so on.
The erosion of these creatures on stone is as follows:
(1) Accumulating moisture and floating dust to contaminate the stone.
(2) Secreting acidic metabolites to corrode stone.
(3) absorb light energy and carbon dioxide for photosynthesis, and generate carbohydrate corrosion stone.
(4) When these creatures die, their biological remains rot can corrode the stone.
Third, the prevention and treatment of the disease
1, prevention
(1) All stone materials must be treated with high-quality stone curing agent to protect the six sides (mainly waterproof) before installation.
(2) Keep the facing stone ventilated and dry.
(3) Avoid long-term infiltration of exogenous water.
2, governance
(1) Unblock the water source.
(2) Remove these creatures with a marble blade (for smooth surfaces) or a wire brush (for matte finish).
(3) Thoroughly clean all stains with a special cleaning agent, and then use a high-quality stone protective agent to prevent water from being re-generated.
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