Research on production technology of pressed bamboo for building materials and furniture in the Northwest region

The project “Research on manufacturing technology of pressed bamboo as building materials and furniture in the Northwest” implemented in Lai Chau is a National Project under the Program “Science and technology for development sustainable development in the Northwest” for the 2013-2020 period is chaired by Hanoi National University and implemented by the Forest Industry Research Institute (Vietnam Forest Science Institute). This is the first technology in the country to use raw materials for housing construction and interior materials; create jobs, meet the demand for wood, reduce deforestation.
Arriving in San Thang 2 village, San Thang commune (Lai Chau city), we found that there is a model of a house on stilts that is different from the traditional stilt houses in the province because the house is made entirely of bamboo products. block pressing. The highlight of the house is the columns, floors, stairs, walls, railings, roof support bars, beams, beams… are all made of pressed bamboo material instead of wood. However, this material still ensures the construction structure as well as the carving of patterns on wood – the symbol representing the colors of the Northwest mountains and forests.

According to Mr. Nguyen Quoc Khanh, the owner of the household: The model of a house on stilts made of block-pressed bamboo in appearance is no different from ordinary wood, in terms of quality, so far, the house is still sturdy without any damage. .

In fact, we know, the model of the stilt house was borrowed by the Forest Industry Research Institute in collaboration with the Department of Science and Technology of Lai Chau province, the People’s Committee of San Thang commune (Lai Chau city) borrowed land from Mr. Khanh’s family. with a voluntary commitment not to dismantle. Accordingly, the model has a total floor area of ​​35m2, built from 2018 to 2019 and completed with a total of 50m3 of wood made from block-pressed bamboo materials. Up to now, the house is in good use with no termites, resistant to harsh weather, no deterioration.

Mr. Tran Van Thanh, an officer of the provincial Department of Science and Technology regularly monitors the shared model: Since implementing the model of building a house on stilts with block-pressed bamboo material to replace wood, it ensures quality and efficiency. The house has high durability, hardness, no wood cracking or super crooked phenomenon.

The Northwest region in general and Lai Chau in particular are mostly ethnic minorities living, so the demand for making houses on stilts of some ethnic groups is very large. Meanwhile, the natural forest cannot be harvested because the Prime Minister ordered the forest to be closed, so the supply of wood for the market has decreased significantly. On the other hand, in Lai Chau, there is a large area of ​​forestry land and a large and diverse source of bamboo materials. The research to create products from bamboo with the aim of replacing natural forest wood is very necessary. Therefore, the Forest Industry Research Institute carried out the project “Research on technology to produce block-pressed bamboo as building materials and furniture in the Northwest region” taking Lai Chau as a location for research. The Institute has cooperated with BWG Mai Chau factory (Son La) to produce and model a house on stilts from industrial pressed bamboo products located in San Thang commune (Lai Chau city). The traditional house on stilts uses block-pressed bamboo material as the frame and floor. The project provides all materials of pressed bamboo and supports a part of auxiliary materials to build a house. Pressed bamboo products have mechanical and physical properties equivalent to those of group III wood used in construction and transportation, meeting the requirements of TCVN 1072:1971. Not only that, block-pressed bamboo material is cheaper than wood.
Dr. Vu Van Cuong – Deputy Director of the Provincial Department of Science and Technology said: The project contributes to promoting the development of the forest product processing industry, effectively and sustainably using bamboo materials to create bamboo materials. new materials to serve the needs of traditional housing construction materials and furniture. The research results will open up a new direction of forest economic development, which is the processing of forest products with the production of high quality pressed bamboo to replace natural forest wood. In particular, raw materials of bamboo are available in the districts of the province such as Muong Te, Nam Nhun and Sin Ho districts. The topic contributes to opening a new research direction on using bamboo to replace natural forest wood when it is increasingly scarce. Contributing to limiting deforestation and protecting the environment.

Bamboo is a renewable resource with a short growing and harvesting period; Bamboo has the properties of hardness, toughness, and durability. Therefore, the raw materials used for the model are used with fresh bamboo and then go through 10 stages such as: Preliminary processing, processing, drying, soaking glue, drying bamboo after soaking glue, cold pressing, drying mold, and removing mold. produce finished products. Products combined with modern techniques will have high biological durability, prevention of harmful insects and fungi; reach grade III timber, in tropical conditions reach 10-15 years of use. Especially very safe for human health, friendly to the natural environment.

The project “Research on technology to produce block-pressed bamboo as building materials and furniture in the Northwest” not only creates jobs, increases stable income from growing bamboo to process products, but also uses effective

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