The organic geotextile (biotextile) has become one of the major types of modern textile products that can provide at the most the environmental compatibility of technological areas where it is applied. Biodegradable properties of geotextile provide rapid restoration of damaged soil and vegetation layer. It is used to protect the soil surface from erosion and erosive destruction of slopes near roads and railways, for decreasing deformation of the roadway, shore strengthening, sprigging of sidehills, terrace slopes and others.
OBJECTIVE
Development of the technology for primary processing of straw stalks of oil flax to obtain flax fibers with qualitative indicators necessary for the production of geotextile. This allows efficient use of Ukraine`s own resources and creating technical raw material base for the different applications of this product.
TECHNOLOGICAL SCHEME OF PRODUCTION
Implementation of this technology makes it possible to obtain needle-punched nonwoven organic geotextile from 100% flax fibers. Material properties: cleanliness in terms environmental compatibility, chemical inertness, high level of resilience to physical influence, resistance to ultraviolet radiation, high elasticity of fabric, the ability to slow but deep filtration, which eliminates the possibility of different microparticles penetration into the drainage layer.
•Biotextile from 100% flax fibers
•Roadway forming:
а) – in a traditional way;
b) – using geotextile fabric
TECHNICAL CHARACRERISTICS
The surface density of the material – 250-650 g/m2. Thickness – 0,5-7 mm. Breaking force of a stripe of fabric measuring 50×100 mm – equal or more than 30 N. Filtering capacity – 80-100 microns. Filtration rate – up to 140 m /day. Lifetime – 5-7 years.
Biotextile is characterized by sufficient strength, marked porous structure, resistance to abrasion and bending, frost resistance, resistance to microorganisms.
Main functions: separation, protection, filtration, drainage and reinforcement.
COMPARISON WITH WORLD ANALOGS
Germany and Canada are the world leaders in the use of flax fiber for the production of non-woven geomaterials. In Western Canada, the economic efficiency of this trend in the use of oil flax varies from 1500 to 2000 USD per ton of fiber, while the straw burning in a field leads to a loss of 600-900 USD per ton
Ukraine produces only synthetic geotextile which covers only 10 % of the total consumption.
ЕCONOMIC ATTRACTIVENESS
Materials allow to reduce significantly the cost of construction and subsequent operation of facilities. Thus, organic geotextile, its price being much lower than that of natural and synthetic materials, has become a real standard for the construction industry worldwide.
SPHERE OF APPLICATION
The organic geotextile is primarily used in landscaping and agriculture as well as in road and civil construction.