Decayed wood is a serious flaw. Timber in the corrosive conditions, 3 to 5 years can be destroyed. Such as the handle can also be a very long time without decay, such as the legacy of the millennium in ancient China more than wooden structure is proof.
Caused by wood decay of the reasons is that wood-rotting fungi (a kind of low-level vegetation) of the infringement.
Wood-rotting fungi breeding conditions:
1. Water, wood-rot fungi secrete enzymes to water as the medium, the wood itself is broken down into sugar for nutrition, wood moisture content of 30% ~ 50% of the most corrupt;
2. Air,
3. Temperature 10-30. If fully soak in the water timber, water rate of over 100%, so vulnerable to decay, so that timber degeneration, loss of its physical properties.
Wood is the most important way to reduce the water content of the corrosion rate of the general moisture content of 18% Xiamu rot fungi can not breed. At the same time, to make timber division ventilated place, avoid moisture, if the ventilation is not good, the same as the air humidity maintained at 80% ~ 100%, wood-rot fungi can grow.
For direct use damp wood preservative coating system or immersion. Preservatives toxic to wood-rot fungi can not reproduce to survive. The most commonly used preservatives are coal tar (commonly known as stinking oil, coking of the by-products), or 3% aqueous solution of sodium fluoride.
Caused by wood decay of the reasons is that wood-rotting fungi (a kind of low-level vegetation) of the infringement.
Wood-rotting fungi breeding conditions:
1. Water, wood-rot fungi secrete enzymes to water as the medium, the wood itself is broken down into sugar for nutrition, wood moisture content of 30% ~ 50% of the most corrupt;
2. Air,
3. Temperature 10-30. If fully soak in the water timber, water rate of over 100%, so vulnerable to decay, so that timber degeneration, loss of its physical properties.
Wood is the most important way to reduce the water content of the corrosion rate of the general moisture content of 18% Xiamu rot fungi can not breed. At the same time, to make timber division ventilated place, avoid moisture, if the ventilation is not good, the same as the air humidity maintained at 80% ~ 100%, wood-rot fungi can grow.
For direct use damp wood preservative coating system or immersion. Preservatives toxic to wood-rot fungi can not reproduce to survive. The most commonly used preservatives are coal tar (commonly known as stinking oil, coking of the by-products), or 3% aqueous solution of sodium fluoride.
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