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Paving Without Joints, Convincing Technology

Paving Without Joints, Convincing Technology

Quality Without Compromise For The Major B Road In Hamburg: Fixed Width Screeds From Vögele Deliver Absolutely Premium Quality Perfectly Even Results And Are The Hallmark Technology Of This World Market Leader. Project For The New Sb 300 Fixed Width Screed From Vögele: The Fixed Width Screed Demonstrated Its Benefits Right From The Start During A Project To Lay A Major Road. It Processed Complex Materials Such As Porous Asphalt And Stone Mastic Asphalt In Large Widths. The Result Was A Convincing One. Fixed Width Screeds Are Frequently Used When Large Widths Need Paving Without Joints. This Was The Case For A New Section Of The B75 In Hamburg Called The “Wilhelmsburger Reichsstrasse”. This Major Road Runs Alongside The Railway Tracks For A Distance Of Approximately 4.6 Km. Bundling Two Large Traffic Routes In One Place Means That Both The Town And Its Inhabitants Gain Space And The Noise Pollution Of The Busy Road Is Reduced For Those Living Nearby. Paving Was Performed By A Super 2100 3i Type Tracked Paver. This Highway Class Paver Of The State Of The Art “Dash 3” Generation From Vögele Is The Machine Of Choice For A Great Many Highway Projects. Sb 300 Fixed Width Screed: Top Quality Paving For Some Time Both Contractors And Operators Have Had Yet Another Reason To Use The Super 2100 3i To Work Without Joints In Large Widths: The Sb 300 Fixed Width Screed. In Combination With The Super 2100 3i It Can Pave A Maximum Width Of 13 M. The Asphalt Paving Work In Hamburg Almost Reached This Limit: The Binder And Wearing Courses Were Paved In A Width Varying Between 10.5 And 12.5 M. To Ensure That The Carriageway Resists Deformation One Part Was Made Of Stone Mastic Asphalt Whilst A 2.2 Km Long Section Was Completed In Porous Asphalt To Reduce Noise. When Processing Materials Compaction Performance And The Floating Behaviour Of The Screed Are Of Key Importance. Both Are Highly Dependent On The Correct Tamper Setting. With Hydraulic Tamper Stroke Adjustment For The New Fixed Width Screeds Vögele Delivers An Innovation Which Allows Tamper Stroke To Be Adjusted At The Push Of A Button. It Can Be Selected Between 4 And 8 Mm The Important Point Being That 4 Mm Are Recommended For Thin Layers Such As Binder And Wearing Courses Whilst A Stroke Of 8 Mm Is Recommended For Thick Base Courses. Current State Of The Art: The Sb 300 And Sb 350 Fixed Width Screeds From Vögele Integrate Numerous Innovations; Among Other Things These Reduce Set Up Time And Accelerate Paving When Pave Widths Vary. Hydraulic Bolt On Extension Increases Variability To 2.5 M Together With His Paving Team Construction Manager Martin Iske From Contractors Kemna Bau Managed All The Challenges Faced On The B75 In Style – Due Among Other Things To The Latest Screed Technology From Vögele: “The New Screed Is Very Rigid; The Immaculate Evenness Makes This Clear. The New Variability Is Another Feature To Highlight Paving Without Joints Would Have Been Impossible Without It.” Iske Is Referring To A Key New Feature On The Sb 300: The Hydraulic Bolt On Extension. This Extension To The Outside Of The Screed Can Be Extended Hydraulically – By 1.25 M On Each Side So A Total Of 2.5 M. This Enables Vögele To Combine The Advantages Of Its Extending Screeds With Those Of The Fixed Width Screeds: A High Degree Of Flexibility Plus Maximum Evenness. On This Large Scale Job Site The Kemna Bau Paving Team Pushed This Advantage Too Almost To The Maximum: Pave Width Varied By Around 2 M. Other Practical New Features Increase Efficiency The Sb 300 Can Be Combined With Several Vögele Pavers From The Super 1800 3i To The Super 3000 3i. It Has A Basic Width Of 3 M And A Variety Of Extensions Can Be Used To Increase It To A Width Of Up To 16 M. The Development Team Developed The Sb 300 Together With The Sb 350. The Latter Delivers A Pave Width Of 18 M Which Can Be Achieved In Combination With Vögele’s Flagship Paver The Super 3000 3i. Two Newfurther Developments On The Sb 300 And Sb 350 Fixed Width Screeds Ensure They Are Ready For Action Quickly: The Guide And Positioning System And The Electric Screed Heating System. Whilst The Guide And Positioning System Helps Users Fit The Extensions Correctly The Electric Heating System Brings The Screed To Operating Temperature More Quickly And More Evenly Than The Preceding Model.

New Sp 154i Slipform Paver From Wirtgen Paves Concrete In Two Layers

New Sp 154i Slipform Paver From Wirtgen Paves Concrete In Two Layers

Wirtgen’s Sp I Slipform Paver Is Capable Of Paving Concrete In Thicknesses Of Up To 450 Mm And Widths Ranging From 5 M To 16 M Depending On The Configuration. Wirtgen Has Recently Released The Sp 154i Updating Its Family Of Large Slipform Pavers. The New Paver Is Primarily Used For Two Layer Concrete Paving On Highways And Airport Runways. The Sp 154i Is Replacing Wirtgen’s Successful Sp 1500 Model. Flexibly Configurable Concrete Paving Train With Its Powerful 436 Hp Cummins Engine (That Meets The Eu Stage Vus Epa Tier 4f Exhaust Emission Standards) The Sp 154i Offers Ample Power Reserves That Enable It To Pave Concrete Surfaces Up To 16 M Wide And 450 Mm Thick. When Paving Concrete In Two Layers Three Separate Machines Work Together To Form A Paving Train: A Bottom Layer Concrete Paver A Top Layer Concrete Paver And A Tcm (Texture Curing Machine). In This Process The Sp 154i Can Be Used As Either A Bottom Layer Or Top Layer Concrete Paver. Thanks To Wirtgen’s Comprehensive Range Of Machines In Various Performance Classes It’s Possible To Create Concrete Paving Trains Tailored To Specific Job Requirements. Sp 154i: Top Layer And Bottom Layer Concrete Paver As A Bottom Layer Paver The Slipform Paver Is Equipped With An Automatic Dowel Bar Inserter Up To Three Automatic Side Tie Bar Inserters And A Concrete Conveyor To The Top Layer Paver. The Heavy Duty Paving Mold Paves The Concrete True To Line And Level While The Paver Moves Forward. Electric Vibrators Compact The Concrete. Then Dowels And Tie Bars Are Precisely Inserted Into The Bottom Layer Concrete. The Result Is A Homogeneous Cost Effective Concrete Surface That Forms The Ideal Base For The High Quality Top Layer Concrete. When Using The Sp 154i As A Top Layer Paver The Top Layer Concrete Is Conveyed Over And Across The Bottom Layer Paver Via A Belt Conveyor And Placed On The Fresh Bottom Layer Concrete In Front Of The Top Layer Paver. The Top Layer Concrete Is Paved “Wet On Wet” And Compacted With T Vibrators Specially Designed For Top Layer Concrete. The Slipform Paver Comes Standard Equipped With An Oscillating Beam And Super Smoother To Produce A Level Surface While The Hydraulically Adjustable One Piece Or Two Piece Side Plates On Both Sides Minimize Concrete Loss. Specially Designed Trailing Forms And Extended Side Plates Additionally Ensure That The Slipform Paver Can Produce Perfect Concrete Corners. Easy Transport And Short Setup Times The Sp 154i Stands Out For Its Outstanding Maneuverability And Traction Regardless Of The Surface Conditions Thanks To Its Four Steerable And Slewing Crawler Units. Making The Units Independent Of Each Other Makes Transport Easy And Results In Minimal Assemblydisassembly Effort. The Sp 154i Features A High Degree Of Automation Which Makes Concrete Paving Extremely Cost Effective.

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