10 Superior Types of Bamboo as a Construction Material with MCDM …
71
Besides making bamboo more durable there is another reason why there is
supposed to be a treatment for bamboo before using it as a construction material.
One of the bamboos problems is beetles and termites, they are the most common
insects in bamboo. The high probability of infection by insects is due to the presence
of starch and other carbohydrates in bamboo (Kumar et al. 1994).
Another common problem is mold and spores, if bamboo is not completely dry.
In addition, shipping bamboo in sea freight containers to the international market,
too, can affect the occurrence of spores and mold (Schröder November 16, 2012). A
high moisture content in the reed makes it possible to reproduce the spore until the
moisture completely evaporates. The appearance of mold can occur from one to two
times (Schröder November 16, 2012).
In the fast and effective removal of stains can help commercial product Mold
Armor FG502. You can also use alternative methods to combat mold. Clean the
bamboo mold and white spores with a soft brush and wipe the area with a wet
rag. After cleaning the bamboo, you can use lemon oil or a solution of vinegar and
water for completely remove the mold. To clean the furniture from bamboo, it is
recommended to apply three layers of polyurethane after removing the mold; this
will ensure the preservation of furniture. Before applying the polyurethane, you need
to clean the furniture with turpentine and completely dry it. If you do not do this,
mold can grow under polyurethane coating and cause blisters (Schröder, November
16, 2012).
One of the case is Phyllostachys aurea and the appearance of bamboo Phyllostachys aurea is often treated with flame (heat treatment). Another case is thicker
bamboo species, such as Guadua angustifolia, are supposed to be treat with boron
solution.
The choice of a suitable method of treatment depends on various factors as green
or dry bamboo, bamboo shape: round bamboo or half. End applications; in contact
with the earth, is exposed to the atmosphere, under cover, structural / non-structural.
Scale; the amount to be treated, and the available time. Since the bamboo is a green
plant that can be attacked by insects, how to protect bamboo not only from insects
but also from mold. Potential causes of decay; biotics (fungi / insects) and abiotic
(fissures / weathering) (Schröder November 17, 2012).
Bamboo leaching is a traditional method, it is used by indigenous communities and
farmers in the Asian and Latin American regions. People transported bamboo from
mountain areas and jungles to cities using bamboo rafts. Transportation of bamboo
over rivers usually took up to four weeks, during which time leaching occurred. The
content of starch in the poles was reduced, thereby increasing the durability of the
material (Schröder, November 14, 2012).
People still use the method of immersing bamboo in water, especially when
bamboo needs to be transported from remote areas. However, single leaching does
not guarantee long-term protection, but helps to remove starch and increases permeability for future treatment by diffusion and pressure treatment. This protects bamboo
from attack by beetles and parasites (Schröder, November 14, 2012).
Store bamboo in water. Bamboo is stored in tanks with water while adding chemicals. Bamboo knots should be punctured, so water will easily penetrate into the
Précédent

- 74/206

Suivant