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Новости/Аналитика

Topics of the first day of the EIHA conference

20.04.2017

Children were invited to come up with a concept for the construction of a playground. The students converted these ideas into 6 concepts that were put up for discussion in the primary school. Of the options offered by the children, as well as their parents, the base one was chosen. Before the production of this playground, students were trained in methodological tools to maximize the involvement of children in the construction process, as well as providing information for parents on operation and further care. The created model of the playground with the involvement of children in the future was embodied in building structures. For 4 days a group of 40 students from pre-fabricated parts of the structure built a playground - a 3 dimensional labyrinth of bamboo and hemp, 5x5x5 m in size.
 
Biocomposites

Mark Reinders The Netherlands "Why you need to use European fiber in the automotive industry of the EU"

 

Nina Graupner, Prof. Jörg Müssig, Germany and T. Poonsawat Thailand "The Thai-German Exchange Program for Fiber-Optic Components of Cannabis"

Rachele Invernizzi Italy "Italian know-how in biocomposites based on cannabis"
 
The Italian company has developed a new formula for biocomposite materials obtained by combining plant matrices and hemp raw materials. Compared with other thermoplastic materials currently on the market, the Italian biocomposite is not only lighter than other analogues of biocomposites currently available on the market in other physical and mechanical properties. The uniqueness of this material lies in the fact that it can replace the entire palette of goods, which at the moment are made from synthetically produced thermoplastic pellets. Another significant advantage of this material is that the production of hemp biocomposite does not imply any significant changes in the process equipment, and since its production temperature is lower than that of traditional thermoplastics, this positively affects the costs for the production of products from this raw material, and Reduces the burden on the environment.
 
At the heart of the new biocomposite on hemp basis are the following postulates: the simplicity of manufacturing end products based on it, the use of low-temperature extrusion, the maximum use of biodegradable plant raw materials, low cost and specific gravity, the possibility of changing the color and finishing properties, as well as the strength of final products, Not inferior to analogs produced from other biocomposite materials.
 
Tests show that the Italian biocomposite is 20% lighter and 30% stronger than polylactic acid, which is currently the most widely used as the basis of biopolymers. At the moment, the first product of the Italian hemp-based biocomposite - a coil for 3D printing is tested for industrial use in Italy, the Netherlands, Belgium, the UK, Luxembourg, and India.
 
Building

Antonio Trionfi Honorati Italy "House of hemp bales of straw"
 
Having established mutually beneficial cooperation with a farmer engaged in agriculture near the construction site, you receive high-quality and cheap building materials that can form the basis for erecting a projected building. The basis of the technology is to use 20 kilogram hemp bales as a building material. Having built a hemp frame of the erected building and filling it with hemp bales, it is necessary to pour the resulting walls of the building with lime. Laying in the walls electric, ventilation, sewer and other systems necessary for a comfortable stay in the building, as well as placing solar panels on the roof and closing specially left openings for doors and windows, we get an environmentally friendly construction absolutely suitable for commercial operation.
 
A feature of this technology is that any person without special education is able to build a building from hemp bales, and the cost of building such a structure is drastically reduced. Given the characteristics of hemp trusts, the structure constructed in this way will have excellent heat and sound insulation properties. In addition, the very mechanism of construction with hemp bales allows you to throw out the traditional process of making bricks, directly linking the farmer with the architect. This kind of technology allows to significantly reduce greenhouse gas emissions caused by the need to create bricks or load-bearing structures that are manufactured at a great distance from the location of the proposed location of the building. This technology is associated with the use of local plant resources, has virtually no negative impact on the environment, and provides an alternative to farmers in the cultivation of interesting crop builders and additional jobs in depressed agricultural regions.

Matteo Montecchi Italy "New hemp building materials using formaldehyde"
 
A new generation of natural and environmentally friendly materials is described, based on cannabis using formaldehyde, for use in "green building and design". The project has been running since 2008 and is aimed at achieving environmental sustainability, recycling, energy saving. Within the framework of the project, new technological processes are being searched for, as well as creation of highly profitable innovative products.

Prof. Gie Steenput Netherlands "Designing and constructing a children's playground of bamboo and cannabis"
 
Part of the training course of a civil engineer at the University of Avans (Tilburg) takes place at the Department of Architecture. Within this course from September 2015 to January 2016. The subject of research was the possibility of developing and constructing a children's playground of bamboo and cannabis. The playground itself is located in the courtyard of the primary school in Antwerp (Belgium), where children from 6 to 12 years old are constantly spending time. It is this school that attracts a large number of children for whom Dutch is not their mother tongue. In order for the process of communication between children to occur as quickly as possible, the children themselves were asked to come up with a concept for the construction of this playground. The students converted these ideas into 6 concepts that were put up for discussion in the primary school. Of the options offered by the children, as well as their parents, the base one was chosen. Before the production of this playground, students were trained in methodological tools to maximize the involvement of children in the construction process, as well as providing information for parents on operation and further care. The created model of the playground with the involvement of children in the future was embodied in building structures. For 4 days a group of 40 students from pre-fabricated parts of the construction built a playground - a 3-dimensional labyrinth of bamboo and cannabis 5x5x5 m in size. During the project, questions were raised related to protecting the playground from rotting, the negative effects of sun and moisture . The University plans to conduct research on the process of exploitation of the created structure, as well as mechanisms of natural decay of bamboo and hemp in the climatic conditions of Western Europe.

Laurent Goudet France "Kostrobeton - 16 years of construction by the method of dry spraying"
 
For the production of any concrete, water is needed. Shortage or high cost of water resources has made it advisable to create a dry sprayer technology with observance of appropriate norms and rules guaranteeing the safety of living in a room built on this technology.

Monika Brümmer Morocco "Parameters influencing the properties of hemp systems"
 
Various parameters were synthesized that affect the characteristics of a very promising material for energy-saving shells of buildings, known as kostrobeton. Variables not only depend on the unit itself, but also on the choice of binders, formulations and application procedures. During construction operations, hemp fibers are more difficult to control than mineral or synthetic fibers, for example, because of their ability to absorb moisture, or because of the ability to release polysaccharides that affect the setting process. Considered are the advantages and disadvantages of using modern construction of kostrobeton in comparison with traditional concrete mixes.

Wolf Jordan Belgium "Buildings of cannabis and lime"
 
Optimization of hemp arbolit binders:
 
- the physics of a mixture of hemp kostrobeton
 
- various binders
 
- the difference in properties between hydrated lime and other hydraulic binders
 
- Lime as a binder in hemp kostrobeton: problems and solutions
Author: 
European Industrial Hemp Association
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