Manhole Covers Ltd

Applications BITUTEX® and BITUTEX®-COMPOSITE are Geogrid and Geotextile composite materials that combine abituminous or polymeric rubber coated reinforcing grid, woven from high tenacity polyester or glass fibres, with a non woven polyester, polypropylene or glass paving fabric. The BITUTEX®-Range is intended for use in asphalt overlays.

Cracking is a common problem with asphalt pavements and can be caused by numerous factors: condition of old road surface, stress factors, temperature changes, moisture and freeze/thaw cycles.

BITUTEX®-COMPOSITE offers significantly more strength than conventional paving fabrics. The result is an even greater resistance to cracking.

BITUTEX®-COMPOSITE combines the dual benefits of paving fabrics and grids in a single sheet.

Properties

Woven high tenacity polyester or glass fibres grid coated with bitumen or polymeric rubber
Polyester, polypropylene or glass non woven fabric
Flexible and light weight
High tensile strength
Elongation of 3% to 20%
Creep resistant
Absorbent fabric
High temperature stability
Available in various sizes, weights and strengths

Applications

Under asphalt overlays
Weak lanes of multi-lane projects
Problems with scarifying and uneven ground
Road widening
Bridge decks
Areas of particularly high traffic stress (air fields, parking lots)
Asphalt resurfacing over concrete
Harsh climatic regions

Benefits

Extended pavement life
Lower maintenance costs
Simple, fast, economic installation
Shrink resistance at high temperatures
Suitable for low temperature applications
High break and tear resistance
Reduced asphalt requirements
Increased reinforcement and stabilisation
Fabric and grid materials function together
Retards cracking
Better fatigue reduction & stress distribution
Improved waterproofing
Greater design flexibility

Technical Data Sympaforce + Bitutex (Europe Standard):

Type Grade	Tensile S’gth kN/m		Aperture Size (mm)		Textile Type		Coating Type	Weight (g/m2)
	Warp	Weft	Warp	Weft	Warp	Weft
Sympaforce 20/20-35	>20	>20	35 + 4	35 + 4	PET High tenacity	PET High tenacity	PVC- Paste	135 +/- 15
Sympaforce 35/30-25	>35	>30	25 + 3	25 + 3	PET High tenacity	PET High tenacity	PVC- Paste	215 +/- 20
Sympaforce 40/40-35	>40	>40	35 + 4	35 + 4	PET High tenacity	PET High tenacity	PVC- Paste	263 +/- 25
Sympaforce 50/50-35	>50	>50	35 + 4	35 + 4	PET High tenacity	PET High tenacity	PVC- Paste	345 +/- 35
Sympaforce 55/30-25	>55	>30	25 + 3	25 + 3	PET High tenacity	PET High tenacity	PVC- Paste	290 +/- 30
Sympaforce 80/30-20	>80	>30	20 + 2	20 + 2	PET High tenacity	PET High tenacity	PVC- Paste	330 +/- 30
Sympaforce 110/30-20	>110	>30	20 + 2	20 + 2	PET High tenacity	PET High tenacity	PVC- Paste	424 +/- 40
Sympaforce 150/30-20	>150	>30	20 + 2	20 + 2	PET High tenacity	PET High tenacity	PVC- Paste	525 +/- 50
Glass-Bitutex 60/55-35*30	>60	>55	35 + 4	35 + 4	Glass	Glass	SBR	280 +/- 30
Bitutex 60/55-30	>60	>55	30 + 3	30 + 3	PET High tenacity	PET High tenacity	SBR	248 +/- 25

Type Grade Elongation (%) Reference Strength (kN/m2)

2% 3% 5%

Warp Weft Warp Weft Warp Weft

Sympaforce 20/20-35 13 +/- 3 18 +/- 3 5 3.5 6 4 8,5 5

Sympaforce 35/30-25 13 +/- 3 17 +/- 3 7 4 8 5 12 6

Sympaforce 40/40-35 12 +/- 2 16 +/- 3 8 6 10 7 13,5 8,5

Sympaforce 50/50-35 12 +/- 2 15 +/- 3 10 8 11 8 16,5 10

Sympaforce 55/30-25 15 +/- 3 18 +/- 3 9 5 11 5 15 7,5

Sympaforce 80/30-20 13 +/- 3 14 +/- 3 16 5 20 6 28 7,5

Sympaforce 110/30-20 14 +/- 3 16 +/- 3 19 5 23 5,5 28 7

Sympaforce 150/30-20 13 +/- 3 16 +/- 3 29,5 5,2 33 5,8 41,6 7,1

Glass-Bitutex 60/55-35*30 4 +/- 1 4 +/- 1 30 28 45 45 / /

Bitutex 60/55-30 15 +/- 3 20 +/- 4 10 8,5 12 9,5 16 13