Applications
Applications

BEBIT Asphalt Reinforcement Grids

Around 95 % of classified highways are constructed with an asphalt surfacing layer. The construction class and thus the road pavement design are selected according to the traffic loading. This ensures that a solution can be found that is tailored to the loading conditions and is both technically satisfactory and economically viable. The rapid increase in car and HGV traffic in recent years has led to increasing levels of road damage. The consequences of poor road conditions are ever shorter maintenance intervals, localised cases of overloading, traffic restrictions and accident blackspots. To combat these effects, “technical textiles” such as asphalt reinforcement grids have been successfully employed in road construction since the 1980s. In the meantime, a wealth of experience has been compiled, which has been incorporated, for example, in the FGSV working paper no. 770 (2006/version 2013) on the use of non-woven fabrics, grids and composites in asphalt pavement construction. BEBIT is our product range that has been developed in line with these principles.

Your advantages

Reinforcing effect

Fast and cost-effective to lay

Reduces rehabilitation costs in the long term

General

BEBIT G is a grid that has high tensile strength and is made of glass fibres with a melting point above 850 °C. The fibre bundles are encased in a bitumen coating. BEBIT G Asphalt Reinforcement Grids have an extremely high constrained modulus that allows the immediate absorption of high tensile forces with minimum elongation. This results in the stresses being concentrated in the asphalt inlay and its reinforcing function is immediately activated. The open structure of BEBIT G grids ensures optimum bonding between the layers.

Oben: BEBIT G | Mitte: BEBIT G BC | Unten: BEBIT G Plus

Asphalt reinforcement grid with additional laying aid

BEBIT G plus and BEBIT G BC are asphalt reinforcement grids from the BEBIT G range with an additional laying aid. In the case of BEBIT G Plus, the laying aid comprises an additional mesh infill made of fine glass roving. BEBIT G BC, on the other hand, has a laying aid made of light-weight, non-woven fabric.

A laying aid ensures maximum possible contact with the bituminous subsurface, keeps the grid firmly in position and makes installation more cost-efficient. No additional bitumen emulsion or otherwise customary spreading of chippings is necessary.


Functions

Reinforcement

BEBIT asphalt reinforcement grids are reinforcing products. The grid acts as a reinforcing element that absorbs the forces in the area of loading and thus effectively delays crack development. The resulting fatigue resistance is greater than that of a non-reinforced asphalt layer. The reinforcement grid improves the load-bearing capacity of the entire pavement system, slows down the propagation of cracks from the substrate and significantly extends the useful life of the asphalt surface.


Applications

Asphalt reinforcement materials are useful in all situations where asphalt layers are subject to high traffic loading and fluctuations in temperature, since these conditions are liable to promote crack formation. Asphalt sealing systems in water engineering, landfill sites and agricultural areas are thus also suitable fields of application for BEBIT Asphalt Reinforcement Grids.

Road widening: 1. New asphalt surfacing layer | 2. BEBIT Asphalt Reinforcement Grids | 3. Existing or milled asphalt base layer | 4. Regulating course, if required | 5. Unbound sub-base

Road widening

  1. New asphalt surfacing layer
  2. BEBIT Asphalt Reinforcement Grids
  3. Existing or milled asphalt base layer
  4. Regulating course, if required
  5. Unbound sub-base
Overlaying block paved areas: 1. New asphalt surfacing layer | 2. BEBIT Asphalt Reinforcement Grids | 3. Regulating course | 4. Unbound sub-base

Overlaying block paved areas

  1. New asphalt surfacing layer
  2. BEBIT Asphalt Reinforcement Grids
  3. Regulating course
  4. Unbound sub-base

Rehabilitation of bituminous road surfaces

  1. New asphalt surfacing layer
  2. BEBIT Asphalt Reinforcement Grids
  3. Regulating course, if required
  4. Existing or milled asphalt base layer
  5. Unbound sub-base
Renovation of concrete roads: 1. New asphalt surfacing layer | 2. BEBIT Asphalt Reinforcement Grids | 3. Bituminous regulating course | 4. Existing concrete road pavement | 5. Unbound sub-base

Renovation of concrete roads

  1. New asphalt surfacing layer
  2. BEBIT Asphalt Reinforcement Grids
  3. Bituminous regulating course
  4. Existing concrete road pavement
  5. Unbound sub-base

Data

PropertiesG 50G 100G 120G 50 plusG 100 plusG 120 plus
G 50 BCG 100 BCG 120 BC
Product typeAsphalt reinforcement grid with bitumen coating
Additional laying aidwithoutMesh infillNon-woven fabric
Raw materialGrid: glassGrid: glass
Mesh infill: glass
Grid: glass
Non-woven fabric: PP
Maximum tensile strength longitudinal (kN/m)501001205010012050100120
Maximum tensile strength transverse (kN/m)501001205010012050100120
Fields of application
Road and
traffic areas
Aircraft operation areas
● suitable
Special types available on request.

Installation

  1. Before installation can begin, the surface on which the grids are to be laid must be checked to ensure adequate evenness and must be also be cleaned. If any cracks, joints or other holes become visible, these must be filled and sealed.
  2. The subsurface temperature should not be less than 5 °C and the air temperature must be at least 10 °C during laying.
  3. BEBIT asphalt inlays must be laid into the bitumen emulsion layer after the emulsion has broken. They must be laid in dry weather only and without creasing.
  4. Immediately before the asphalt reinforcement is laid, the road surface is first sprayed with a Class C70BP 3-OB-1 polymer-modified bituminous emulsion tack coat, in accordance with TL BE StB 07. Good experience has also been had with Class C70BP 3-OB-2 emulsions. If any other type of emulsion is to be used, this must be tested in advance to make sure that good bonding with the supporting layer is achieved.
  5. A road surfacing layer of at least 40 mm must be laid on top of the asphalt inlay immediately after the bitumen emulsion has dried.

Our detailed installation and laying instructions for BEBIT Asphalt Reinforcement Grids must also be observed.

Advantages

  • Improves the fitness for use of asphalt-bound traffic surfaces
  • Reinforcing effect
  • Complete solution with functional reliability
  • Good milling properties
  • Milled material can be completely recycled
  • Fast and cost-effective to lay
  • Extends the maintenance intervals
  • Reduces rehabilitation costs in the long term

Gallery

Further information about:
BEBIT Asphalt Reinforcement Grids

Downloads

BEBIT Asphalt Reinforcement Grids

BEBIT Asphaltarmierung

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