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ULTIMATE TARMACCONSTRUCTIVE THINKING
CONSTRUCTIVETHINKING
Martin Riley – Managing DirectorBrian Kent – Technical Director
• Challenges and Solutions progress
• New Solutions in 2015
• What next ?
CONSTRUCTIVE THINKING
CHALLENGES AND SOLUTIONS PROGRESS
• ENHANCED UTILITY ASPHALTS
• ULTILOW
• ULTIMAT
• ULTIFASTPATH
• ULTIGRIP
Right First Time…….
5
PROVEN TO REDUCE FAILIURE IN REINSTATEMENT WORKS
34.4%
65.6%
Pass Fail
A CUSTOMER EXPERIENCE
2011 – Major improvement needed in air voids compliance
ENHANCED AC 6 Dense Surface course 160/220 Pen
A CUSTOMER EXPERIENCE
LOW TEMPERATURE ASPHALT
0°C 50°C 100°C 150°C 200°C
Cold Mix Half Warm Warm-Mix Hot Mix
LOW TEMPERATURE ASPHALT - DEFINITIONS
Same penetration grade as orderedSame bitumen contentSame design parametersSame insitu voids criteria
The only difference from traditional hot mixtures is the lower temperature
WARM MIX ASPHALTS DELIVER
The Government’s 2025 Construction Strategy Calls For :
• A reduction in both the initial cost of construction and the whole life cost of assets
• A reduction in the overall time from inception to completion for new build and refurbished assets
• A reduction in greenhouse gas emissions in the built environment
LOW TEMPERATURE ASPHALT CAN CONTRIBUTE TO THEM ALL
0%
5%
10%
15%
20%
25%
30%
2009 2010 2011 2012 2013
5%11%
19%
24%30%
% of total asphalt market
INTERNATIONAL PERSPECTIVE – USA LTA GROWTH
11 MILLION TONNES (77%) of warm mix asphalt in ….3.7 MILLION TONNES (82%) of warm mix asphalt in …….
52 5
2916
4716
6
1
10
27
5814
153
82
35
50
37
60
71
42
11
389
10
702277
7270
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1
12
38 165
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23
18
12
25 16
48
32
21
2
53 718
82
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INTERNATIONAL PERSPECTIVE – USA LTA GROWTH
LTA PROGRESS IN THE UK
• A46 Cossington selected and successfully supplied as an HA demonstration site to prove ‘business as usual’ in terms of site operationsNote ; HE have subsequently indicated blanket approval to Tarmac processes pending departure protocol formalities.
• The first LTA EME supplied in the UK in October 2014– 2,300 tonnes to the M180
• First supplies in Scotland in February 2015– 3,000 tonnes to Mid Lothian CC
CURRENT STATUS
• General enquiry rate increasing / growing interest ;Over 80kt supplied ytd - with over 16kt supplied in August alone.
• Tarmac currently have 20 plants with supply capability -increasing to 24 by October
• Willing to increase this number accordingly subject to demand.
ACTIVE
PLANNED
NO CAPACITY
WHY ULTILOW FOR YOUR CLIENT AND YOU ?
REDUCED PROGRAMME DURATION/ EARLIERRE-OPENING
REDUCED CARBON FOOTPRINT
REDUCED PUBLIC DISRUPTION
LOWER ON-SITE COSTSHELPING A RESTRICTEDBUDGET STRETCH FURTHER
SAFETY & WORKING ENVIRONMENTBENEFITS
BRINGING AN INNOVATIVE SOLUTION TO YOUR CLIENT
Flexibility and Durability…….
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SUPERIOR FLEXIBILITY
ULTIMATE SOLUTION - LONGER LASTING FOR SITES WHERE OTHER PRODUCTS FAIL TO PERFORM.
Utilises STYRELF EXTREME 100 with a carefully designed aggregate grading to deliver a high performance asphalt ideal for resistance against pavement cracking and deformation.
WHY ULTIMAT ?
• Failing road network – reflective cracking
• Evolved network not designed for current loadings
• Limited budget – eg deep reconstruction is too expensive
• Avoidance of public disruption
• Constrained construction periods
• Whole life cost benefits• Durable• Cost / longevity / full life costing evaluation
WHY ULTIMAT ?
THE CHALLENGE
Cracking caused by inherent ground movement issues due to the presence of clay throughout the county
OUR SOLUTION
Half of the contract utilised the traditional approach of 55/10 HRA 100/150pen and the other half ULTIMAT. After three months, significant cracking was clearly visible in the HRA demonstrating superior performance of ULTIMAT
ULTIMAT
Product ULTIMATClient WARWICKSHIRE CCContractor LAFARGE TARMAC CONTRACTINGLocation ALDERMINSTER ROAD
ULTIMAT v HRA (HRA CRACKING WITHIN 3 MONTHS)
6 YEARS LATER !
WHY ULTIMAT FOR YOUR CLIENT AND YOU ?
AVOID DEEPER RECONSTRUCTION
SUPERIOR FLEXIBILITY
REDUCED PUBLIC DISRUPTION
ENHANCED DURABILITY AND DEFORMATION RESISTANCE
BRINGING AN INNOVATIVE SOLUTION TO YOUR CLIENT
EASIER TO LAY THAN HRA
Faster Footpaths…….
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THE ULTIMATE ONE PASS FOOTPATH SURFACING SOLUTION
10mm proprietary asphalt surface course that can be laid as a single layer up to 70mm thick.
Binder modifier improves workability, reduces softening in hot weather and enhances the toughness of the surface.
Resists scuffing and deformation from pavement parked cars.
Specially designed dense grading and selected fine aggregates gives a tight surface finish and low voids.
Click here to see the video.
ULTIFASTPATH
WHY ULTIFASTPATH FOR YOUR CLIENT AND YOU ?
REDUCED CONSTRUCTION TIME
HEAT RETENTION PROVIDES AN EXTENDED COMPACTION WINDOW ALLOWING LARGER AREAS TO BE WORKEDREDUCED PUBLIC
DISRUPTION
ENHANCED DURABILITY AND TOUGHNESS
BRINGING AN INNOVATIVE SOLUTION TO YOUR CLIENT
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FAMILIAR SIGHT?
37
THE SOLUTION…
THE ULTIMATE SKID RESISTANT ASPHALT
ULTIGRIPULTIGRIP is a brand name change from UltiColour Bauxite.
Bauxite aggregate and a durable clear binder combine to give a tough, textured finish and long term skid resistance, even on heavily trafficked sites.
Designed to improve road safety and reduce the risk of accidents, providing a coloured, textured finish that improves visibility and skid resistance in high risk locations.
A6 Rowsley - Derbyshire
Material laid 40mm thick – September 2001 (75/25 blend of Calcined Bauxite and 68 PSV aggregate respectively)
July 2015 !
Lafarge Tarmac
Technical Updates(Progress and Issues)
ULTIGRIPA6 Leicestershire, 17th March 2013
Click here to see the video
Junction A46/A6 (Bauxite)
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Day 1 Day 3 Day 8 Day 16 Day 29 Day 39 Day 43 Day 56 Day 79 Day 124Day 165Day 204Day 380Day 466Day 571Day 770
Val
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ANTI-SKID AND ULTIGRIP COMPARISON (SCRIM)
Junction A46/A6 (Bauxite) A6 Rowsley (Bauxite)
14 Year - BenchmarkA6 Rowsley (Bauxite)
Pre-trial figure on existing carriageway
Anti-Skid typically applied after 14 days
Fresh Anti-Skid
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Year 0 Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 Year 8 Year 9
Valu
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ANTI-SKID AND ULTIGRIP COMPARISON (SCRIM)
Anti-Skid A6 Rowsley (Bauxite)
3 Year Value 0.39
Fresh Anti-Skid Value 0.74
A6 Rowsley - 14 Yr benchmark
Typical 2-3 Year Wear Life
Leicestershire – 2013Manchester – 2013Haltwhistle – 2013Coventry – 2013/14Northumberland – 2014County Durham – 2015
Landmark SiteM25 Junction 5 -Circa 1,000 tonnes commenced 29th
September.
Further Live EnquiriesWales, Doncaster, Derbyshire,Dumbartonshire, Southampton
PROGRESS
SKID RESISTANCESimilar SCRIM level to conventional anti-skid and the same high visibility appearance.
REDUCEDWHOLE-LIFE COSTAvoiding several remedial visits / costs re Traffic Management, Anti-skid costs and potentially surface course replacement too due to re Antiskid ‘tearing’ effect.
IMPROVED CLIENT OFFERINGBringing innovation to your client.
REDUCED WEATHER WINDOW RESTRICTIONSAnti-Skids are seasonal and cannot be laid on a wet surface. ULTIGRIP can be laid all year round subject to typical asphalt weather restrictions, eliminating aborted work costs.FASTER
INSTALLATIONQuick single pass, thereby reducing costs and minimising disruption to road users.
DURABLE AND SAFERLonger lasting than typical anti-skid alternative.Reduces the risk of accidents and costly legal claims. Liability ?
WHY ULTIGRIP FOR YOUR CLIENT AND YOU ?
Solutions Launched in June 2015
• ULTIMAT SAMI
• ULTILIFE Hotbox
• ULTITHIN
• ULTIGUARD
• ULTIPAVE ‘M’
THE ULTIMATE ASPHALT ALTERNATIVETO GEOGRIDS
Questions
• What is it a solution for ?
• How is it laid ?
• Who can lay Ultimat SAMI ?
• What competitor product is it an alternative to ?
• How thick is it generally laid ?
Questions
• What is it a solution for ?
• How is it laid ?
• Who can lay Ultimat SAMI ?
• What competitor product is it an alternative to ?
• How thick is it generally laid ?
ULTIMAT SAMIULTIMAT SAMI (Stress Absorbing Membrane Interlayer) - is a dense and highly flexible asphaltic geogrid alternative which provides long term crack resistance.
Manufactured with a high performance polymer modified binder and typically laid at 25mm thickness directly onto jointed concrete, CBM base, or old asphalt layers where the client has indicated the need for a geogrid approach.
Reflective cracking in asphalt laid over jointed concrete / old CBM is caused by tensile stresses by movement at the slab joints.
These stresses are a result ofconcrete pavement thermal andtraffic induced movement.
Thermal movement generates‘bottom up’ cracking.
Traffic induced movementgenerates ‘top down’ and‘bottom up cracking’.
CRACKING
The flexible SAMI prevents these stresses from causing cracking in the surface course.
Due to the ‘Top down’ cracking potential, we recommend that the SAMI is overlaid with one of our flexible PMB based solutions, i.e. ULTIPHALT ‘P’ or ULTIMAT.
HOW IT WORKS
Proven track record overseas, laid extensively in China and the USA, with the first major UK trial in 2008.
12 months project at Nottingham University to produce technical data and develop design modelling capability.
LONG TERM PERFORMANCE
PROVENPERFORMANCE
• A45 Billing, Northampton - 2008• Hall Quay, Great Yarmouth – 2008• A140 Scole Bypass – 2010• Hertfordshire – 7 sites since 2010• RAF Waddington – 2015
Further sites now in the pipeline, i.e. Nottinghamshire and Worcestershire.
Dr Nick Thom at the University of Nottingham said:
“The material that Tarmac has developed has a quite remarkable resistance to fatigue. This means that as part of an overlay system it presents a very effective barrier to reflective cracking, most especially thermally-driven reflective cracking, leading in many cases to a considerable enhancement in life”.
LONG TERM PERFORMANCE
WHY ULTIMAT SAMI FOR YOUR CLIENT AND YOU ?
ALTERNATIVETO GEOGRIDComparable performance to geogrid but avoids the installation complications.
COST EFFECTIVECost comparable to geogrids and provides the client with the ability to avoid deep reconstruction
SUSTAINABLEExtends the life of asphalt overlays and is fully recyclable at end of life.
PRACTICALLaid using conventional paving equipment.
AVOIDS THE NEED FOR GEOGRID SUB CONTRACTORSDIY approach - Main contractor in total control of their own programme and through use of own resources, retains full profitability in-house.
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THE ULTIMATE LONG-LASTINGHOTBOX ASPHALT SOLUTION
ULTILIFEULTILIFE is our new solution to provide extended life during hot box storage
Potentially up to 60 hours from delivery, i.e. a full weekend.
Saves transportation time and costs
Reduces asphalt wastage.
ULTILIFE is supplied and stored at a lower temperature than conventional hot materials thereby reducing the impact of binder hardening during storage at higher temperatures.
Hot box calibration essential.
STORAGESOLUTION
TAILOREDTO MEETTHEIR NEEDSTarmac will visit depot to discuss what products they require, assess their hot box and ensure that the combined delivery and storage operations provide optimum benefits in terms of solution life.
REDUCEDCOSTSReduced asphalt wastage and hot box fuel savings For some customers, avoid part load charges ?.
SUSTAINABLE SOLUTIONLower energy use in hot boxes and reduced material wastage.
SPECIFICATIONCOMPLIANCEULTILIFE asphalts meet all standard specifications of asphalts commonly stored in hot boxes and require no additional procedures for use.
WHY ULTILIFE FOR YOUR CLIENT AND YOU ?
IMPROVED CLIENT OFFERINGBringing innovation to your client.
THE ULTIMATE THIN SURFACE COURSE TREATMENT
ULTITHINULTITHIN is a polymer modified 6mm very thin surface course, designed for laying on both urban and rural road applications.
Minimum of 15mm thickness at any single point.
Durable surface with a consistent texture and the required PSV.
Enhanced workability assists with laying around ironwork and construction of junctions..
REDUCEDSEASONALRESTRICTIONSReduced seasonal restrictions compared to surface dressing –Recommend avoid only the very cold winter months.
QUIETERProvides a negative texture providing a quiet surface – key advantage in urban environments.
SUPERIOR FINISH and enhanced durability compared to surface dressing or micro asphalts.
REDUCING PUBLIC DISRUPTIONSame day solution, faster reopening to traffic, avoids need for full road closures, no short term restricted speed limits and no ‘flying chippings’ damage to cars.
COST EFFECTIVECan be lower cost than conventional pre patching and surface dressing combined operations – avoids the need for expensive preparatory work on many sites
NEW MARKET ?Utilising existing workforce, plant and equipment.
WHY ULTITHIN FOR YOUR CLIENT AND YOU ?
ULTIGUARDAcid resisting 10mm surface course – laid 40mm thick.
• Selected aggregates utilised that are not acid soluble.
• Designed to provide a smooth low permeability surface.
• Additive used provides increased bitumen / aggregate adhesion and improved workability to assist with compaction and joint formation.
• Silage clamps and silo floors
• Farm yards and animal housing
• Areas subject to acidic chemical spillagee.g. water treatment works
APPLICATIONS
SUITABLEFOR CONCRETE OVERLAYSexisting damaged concrete surfaces may be overlaid with ULTIGUARD providing a fast ‘good as new surface’.
REDUCEDDISRUPTIONFaster to install and more economic than concrete –Client able to use within 12 hours.
ACID RESISTANCEAcid resistance greater than conventional asphalts or concretes – better durability, whole life cost.
SMOOTH EASY TO CLEAN SURFACEwill provide quick and efficient maintenance, enabling goodhousekeeping.
NEW MARKET ?Utilising existing workforce, plant and equipment
WHY ULTIGUARD FOR YOUR CLIENT AND YOU ?
ULTIPHALT ‘M’ Continuous development of our Clause 942 BBA HAPAS approved road surface solution
ULTIPHALT ‘M’ULTIPHALT ‘M’ uses polymer technology to inhibit binder drainage as an alternative to the current ULTIPHALT (fibre based) product.
All the characteristics expected from standard ULTIPHALT…………
………… with the additional benefits of improved ease of laying, durability enhancement and avoidance of potential intermittent remedials with fatty SMAs due to occasional fibre quality, quantity, or inadequate dispersion issues, which impact on both Supplier and Contractor reputation
ULTIPHALT ‘M’
BBA 942/HAPAS approved since July 2015.Note: Initially only available in the 14mm and 10mm nominal sizes.
Same price as ULTIPHALT
Important - This is not an enhanced flexibility Solution
Where the client requires enhanced flexibility to counter lower layer movement, they will still require ULTIPHALT ‘P’.
Tarmac Support
• Tarmac Technical support available to assist as necessary
- either with internal training or client dialogue ?
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