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Breedon Superior

BREEDON Superior incorporates elastomeric polymer-modified binders which outperform ‘standard’ bituminous materials in terms of fatigue, deformation, water-sensitivity and cracking resistance.

It was created to build stronger, thinner, longer lasting pavements but with the additional aim of providing improved flexibility over similar constituent gradations and stiffer bitumen of high modulus asphalt.

 

Is a continuously dense graded product of specially designed aggregate combinations, it has improved adhesion, cohesion, ductility, strength, and thermal resistance over conventional densely graded mixtures, which is achieved from specific polymer modified binders.

The highly modified binder brings additional values on cracking resistance enhancing the benefit in structural asphalt layers

BREEDONSuperior can be trafficked earlier than conventionally used hot mix materials, reducing construction times, and disruption to users. Suitable for most machine-lay sites, the product will offer whole-life cost savings compared with traditionally used bituminous materials.

The product is available in a variety of nominal sizes suited for the application, allowing the material to be installed at a range of layer thicknesses.

Major benefits include:

  • Suitable for high volume sites requiring high fatigue, deformation and cracking resistance
  • Can be used to reduce construction time and therefore lower costs, minimise disruption to users and less health and safety risks
  • Good resistance to fatigue, fretting, raveling, rutting
  • High level of ITSR water sensitivity compliance, impermeable to water penetration, preventing detrimental ingress
  • Good rate of spread due to high binder volumes
  • Area can be opened to traffic earlier than conventional materials
  • Surface courses exhibit smooth uniform finishes.
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  • FAQs

    1. WHAT IS ASPHALT?

    Asphalt is a combination of processed constituent materials of: Aggregate (crushed rock, crushed gravels, crushed rock fines and / or sand), bitumen (derived from crude oil) and ground or reclaimed mineral filler(s). Asphalt may also incorporate additives to improve performance (e.g. fibres, enhanced wax, polymers and closured pigments). Asphalt is commonly used in the construction of roads, airfields pathways, car parks, driveways and play areas. Typically asphalt is black, but it will wear to the colour of the surface aggregate. It may also incorporate resins and pigments for a colour enhancement of choice. Red, blue green, brown etc.

    2. WHAT ARE THE DIFFERENT TYPES OF ASPHALT?

    Commonly used asphalts in the UK are asphalt concretes (previously termed ‘bituminous macadams’ or ‘bitmacs’), hot rolled asphalts (HRAs), and stone mastic asphalts (SMAs). Asphalts can further be grouped into base, binder and surface courses, each providing a different function in flexible pavement construction.

    3. WHAT DO THE DIFFERENT GRADES OF BITUMEN REFER TO?

    Bitumen is graded on stiffness (penetration in tenths of a mm of a 100g needle dropped onto a bitumen sample for 5 seconds at 25°C and softening point). Lower ‘pen’ value bitumen's are stiffer (i.e. 40/60 pen is stiffer than 160/220 pen). Lower ‘pen’ bitumen's also have higher softening temperatures compared to higher ‘pen’ grades. Commonly used bitumen grades in the UK are 40/60 pen, 70/100 pen, 100/150 pen, and 160/220 pen. 100/150 pen bitumen is the preferred grade for most applications in the UK, although 40/60 is used for heavily trafficked roads, and 160/220 is often used for hand lay work as it is easier to apply.

    4. WHAT TYPE OF ASPHALT DO I REQUIRE?

    This will depend on the application which it is to be used. Our Sales Department will be able to offer advice on the most suitable types of asphalt for your requirement.

    5. WHAT ARE PROPRIETARY MATERIALS AND WHY CHOOSE THESE OVER ‘NORMAL’ ASPHALT MATERIALS?

    The Proprietary Materials offered by Breedon Group are extensively designed and rigorously tested to exceed the performances of traditionally used asphalts in specific applications. Our Proprietary Materials often include additives to achieve these high levels of operation.

    6. HOW MUCH ASPHALT DO I NEED?

    As a guide, please refer to our Material Calculator.

    7. WHAT DEPTH SHOULD I LAY ASPHALT?

    This can vary depending on the site. As a rule of thumb however, the depth should be at least 4 times the dimension of the largest nominal size in the mix for surface course (i.e. 40mm depth for 10mm asphalt concrete); and at least 2.5 times the dimension of the largest aggregate size in the mix for base and binder courses (i.e. 50mm for 20mm asphalt concrete).

    8. CAN I LAY ASPHALT ON TOP OF EXISTING CONCRETE?

    Traditionally this has not recommended. Concrete is a rigid material, whereas asphalt is flexible. When laid on top of concrete, where thin layers of traditional pen grade asphalt cannot ‘flex’, there is a likely hood that the material will break up, and any joints in the concrete will be reflected into the asphalt surface above. With the development with polymer modified asphalt and careful design of the asphalt overlay, composite construction of semi rigid pavements can be constructed.

    9. HOW LONG DO I NEED TO STAY OFF NEWLY LAID ASPHALT?

    This is dependent on weather conditions. It is normally acceptable to traffic asphalt pavements when the mid point of the layer is <40oC and the surface temperature is < 25oC. Normally, 24 hours without trafficking will be sufficient.

    10. WHAT ARE THE DANGERS OF ASPHALT?

    The main danger with asphalt is temperature. Asphalt must be laid hot or warm (i.e. above 120°C), which subsequently can result in severe burns. Care must be taken when working with asphalt, and appropriate personal protective equipment (PPE) must be worn at all times.

    11. ARE THERE ANY PRECAUTIONS TO BE TAKEN WITH FRESHLY LAID ASPHALT?

    Asphalt remains relatively soft for up to one year after laying. When used to construct driveways, it is recommended that cars are moving when the wheels are turned. If a car is stationary when the wheels are turned (particularly with modern power steering), the asphalt can be displaced and scuffed by stresses applied at that particular point. It is also recommended that (wherever possible) vehicles are parked in different positions to avoid marking the asphalt, and fuel spillages are kept to a minimum.

    12. WHAT SIZES OF DELIVERY VEHICLES ARE AVAILABLE?

    We can supply asphalt in either 16 tonne (‘six wheeler’) or 20 tonne (‘eight wheeler’) loads. Alternatively, customers can collect any size of order above 1 tonne.

    13. HOW LONG WILL THE ASPHALT REMAIN HOT?

    This is weather dependent. Provided the asphalt is suitably covered and insulated, asphalt should remain workable for 2 hours after production.

    14. WHAT EQUIPMENT WILL I NEED TO LAY ASPHALT?

    For hand laying, minimum requirements would be heavy-duty wheel barrows, asphalt rakes, mechanical ‘ride-on’ twin-drum roller, asphalt tamper. For larger projects, specialist machinery will be needed and advice should be sought from paving machinery manufacturers.

    15. SHOULD I USE EDGING?

    Yes. Unconfined asphalt without edging is more likely to fail than asphalt which has suitable edge protection.

    16. HOW CAN I PLACE AN ORDER?

    Orders can be taken over the telephone by our Sales Department, by fax, in person at any of our depots, or in writing.

    17. HOW CAN I OPEN AN ACCOUNT?

    Please contact our Sales Department for information.

  • Customer support

    For further information please call your local sales office:

    Hebrides: 01851 703227
    Highlands: 01463 716889
    Fife & Tayside: 01337 841989
    North East Scotland: 01330 833361
    Argyll: 01631 565128
    Central Scotland: 01698 611016
    South West Scotland & Cumbria: 01290 700777
    North East England: 0191 6153378
    Staffordshire, Shropshire & West Midlands: 01952 777910
    South Cumbria & Lancashire: 01995 676156
    North West England & Greater Manchester: 01942 441286
    North Wales & Cheshire: 01978 788880
    North / West Yorkshire: 01138 293006
    South Yorkshire & North Derbyshire: 01302 944066
    South Derbyshire, Nottinghamshire, Leicestershire & Northamptonshire: 01332 694000
    Humberside (concrete): 01472 351987
    Lincolnshire: 01780 482000
    East Anglia: 01603 673949
    South West England: 02920 609777
    South East England: 01245 913063
    South Wales: 02920 609777
    Powys & Shropshire: 01568 770521
    Herefordshire & Gloucestershire: 02920 609777



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