Transport Construction

Geosynthetics for transport construction

TECHPOLYMER geosynthetic materials and structural solutions are used in the construction, reconstruction and repair of public roads, roads of industrial and agricultural enterprises, temporary roads, railways, access roads and car parks.

TECHPOLYMER solutions are intended to address the most common problems encountered in road construction:

• Flood-prone areas;
• Permafrost foundation soils;
• Expansive foundation soils;
• Weak foundation soils (type I–III swamps, subsiding soils);
• High groundwater level;
• Karst formation;
• Formation of ice lenses;
• Failure of retaining walls;
• Erosion of embankment/cut slopes.

These problems can be prevented at the design stage using TECHPOLYMER geosynthetic materials.

Geosynthetics increase the operational reliability and service life of road structures and their individual elements, simplify construction methods and shorten construction periods, reduce the consumption of traditional road construction materials and decrease the volume of earthworks.

The challenges we address in the industry

Reinforcement of asphalt concrete layers using the Armorset B polyester grid with bitumen impregnation or the Armorset B/B grid embedded in BND bitumen, as well as reinforcement of the pavement base and subgrade using reinforced RD and RD/M Geogrids or the biaxially oriented SD Geogrid. 

Reinforced-soil structures (retaining walls) for widening existing road embankments and stabilising unstable landslide slopes using geosheet piles, reinforced concrete blocks and gabions, as well as wrapped retaining walls with vegetation on the facing. The technology allows construction work to be carried out within tight deadlines, during winter and in confined conditions. 

Anti-karst protection for the construction of road facilities in areas with soluble rock formations, where karst features are present at the surface and/or within the soil mass. These problems are addressed by using bored or textile-sand geopiles with a flexible grillage. 

Cut-off barriers made of geosheet piles are installed along the shoreline of a water body and in areas with high groundwater levels to prevent waterlogging and failure of the roadbed foundation.

Layer drainage in pavement layers and the subgrade, including shallow and deep drainage using BlockTech modules, which are a more efficient and economical alternative to drainage systems made of discrete materials and also address the problem of clogging in road structure drainage layers.

Surface water drainage for collecting, retaining and diverting water from the pavement surface to prevent its deterioration. These tasks are addressed using such geosynthetic materials as waterproofing geomembrane, concrete canvas and Bentotech bentonite mats.

Erosion protection for road embankment slopes using concrete-filled mats, concrete canvas, three-dimensional geogrid and Geomat 3D. These materials protect slope surfaces from weather and climatic factors, water and wind erosion, and provide embankment reinforcement and local stability.

Bank protection using geosheet piles and bentonite-filled mats during road construction helps prevent damage to road structures located in the bank zone.

Installation of retention reservoirs and collectors as part of stormwater drainage systems using BlockTech modules and V-LOCK anchor sheet helps extend the service life of road pavements and reduce the frequency of routine and major repairs.

Repair of round, rectangular and arched culverts located within road and railway embankments, using V-LOCK anchor sheet and the PipeArm technology, which can be used as a standard solution for routine structural repairs without preparing full design documentation.

Between 2015 and 2020, more than 70 structures forming part of federal and regional roads were repaired in 10 regions of the Russian Federation.