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Новости/Аналитика

Bridge of the flax and hemp

28.10.2016
In the Netherlands opened an ultra-modern building construction length of 14 meters

The use of natural materials in building structures reduces dependence on fossil human resources, which makes it possible to create a circular economy, in which the earth's resources can be reused. Developed by students biocomposite materials based on flax and hemp after some time they will be actively used by people in their everyday lives.
 
In order to demonstrate the possibilities of using new building materials and their use of technology by students from the Netherlands built a bridge of hemp and flax fibers. This kind of construction was made possible by the sharing of capacities the four universities in the country - Delft (Technische Universiteit Delft), Eindhoven (Technische Universiteit Eindhoven), Twente (Universiteit Twente) and Wageningen (Wageningen Universiteit en Researchcentrum). University students designed the structure of the bridge together and based on the knowledge obtained in universities have developed the latest biocomposite materials from which it was made.
 
According to project leader said Rijk Blok "Using natural materials reduces dependence on fossil human resources in building structures, which makes it possible to create a circular economy, in which the earth's resources can be reused. Developed by students biocomposite materials based on flax and hemp after some time they will be actively used by people in their everyday lives. "
 
The idea of ​​building the bridge was funded at the end of 2015, and in January 2016 started its implementation. The concept of this building structure was approved in June, and work on the production of structural parts of the bridge in August. Lubnovoloknistye crops of which the individual elements of the construction were made were chosen for several reasons, first of all their strength characteristics, as well as the wider availability in the country. Before using flax and hemp as a basis for biocomposite materials has been studied a century of French experience of bridge building of hemp fibers as well as the recent experience of the Dutch to build a bridge of bamboo fibers.
 
Technology for creating a biocomposite material from flax and hemp includes the use of polylactic acid foam. All the ingredients of the future biocomposite material is placed in a vacuum, where the extra items "sucks." The resulting material is practically safe for the environment and after the expiration of its life it can be quite easily and quickly processed into new building construction or disposed of virtually zero load on the environment.

 

 

Exterior view of the bridge from different angles
 
According to participating in the project of scientific university staff, as well as the students themselves, to any significant difference between conventional fossil plant construction materials and biocomposites of flax and hemp is not. Under experimental conditions, the bridge should be at least two years, after which it was dismantled. In order to explore comprehensive qualities of biocomposite materials from flax and hemp from which the given building structure is made in a bridge built 28 sensors that are designed to record the deformation rates, as well as the bending of individual building structures, and the entire structure. Only after a comprehensive study of the characteristics of building materials from hemp and flax biocomposites it will be decided to implement this kind of technology in the Dutch bridge construction.

The construction process

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