The fully autonomous Robomag tandem roller can be used completely independently in a defined work area. For loading or manual operation, the Robomag tandem roller can be operated simply by remote control.
State-of-the-art high-performance W380 CRi cold recycler from Wirtgen
Due to the rapid increase in heavy-duty transport, the global road network is showing visible signs of aging in many places. In order to ensure that the road infrastructure remains functional over the long term, roads are increasingly requiring structural rehabilitation. Wirtgen developed the high-performance W 380 CRi cold recycler specifically to meet these requirements. This innovative machine will be unveiled to the world at the Bauma trade show.
The Challenge: Completing Structural Road Rehabilitation More Quickly
Road rehabilitation projects all have to meet the same requirements, regardless of where they are being carried out: they must be cost-effective, eco-friendly, and above all, finished quickly - because time is of the essence. Patchwork repairs are neither sustainable nor do they address the root cause.
The Solution: Wirtgen Cold Recycling Technology
The cold recycling process - which at a minimum recycles the surface and base course material - is already popular today, and demand for this solution will continue to grow in the future. In the in-place cold recycling process, for example, the asphalt surface is removed either in full or in layers, depending on the level of damage, by a recycling train operating across the entire width of the pavement in a single pass, mixed with binding agents on site, and then paved again immediately
At the heart of this recycling train are tracked cold recyclers such as the new W 380 CRi from Wirtgen. With available working widths of 3,200, 3,500 and 3,800 mm, the recycler mills the road between 100 and 300 mm deep in most applications. At the same time, it granulates the material and transforms it into a new, homogeneous material mixture by adding binding agents such as cement, bitumen emulsion, or foamed bitumen. With a mixing capacity of up to 800 t/h, the cold recycler can feed enormous quantities of recycled material to a Vögele paver via its swivel-mounted and height-adjustable discharge conveyor at the rear. This makes it possible to complete extremely long stretches of road in a single day of work. Final compaction is carried out by Hamm tandem and tyre rollers.
Wirtgen's tracked recyclers use the down-cut process when recycling. The cold recycling pioneer developed this process, in which the milling and mixing rotor rotates in sync, years ago. This method has become an essential part of day-to-day recycling operations, as it makes it possible to selectively vary the particle size of the material being processed - especially in the case of fragile, thin, old asphalt roads.
Extremely Durable Foamed Bitumen Mixture
Roads rehabilitated using the cold recycling process also have to meet the same durability requirements as roads designed and built using conventional methods. With the development of its own laboratory equipment, Wirtgen has created solutions which guarantee that the rehabilitation measures will be cost-effective and sustainable even before they are carried out. As a result, the recycler not only makes it possible to define the ideal composition of the RAP, but also to directly analyze its quality and properties using samples in triaxial and splitting tensile strength tests. The quality of the foamed bitumen can also be precisely defined in the materials laboratory before starting the rehabilitation project.
Cold recycling, particularly with foamed bitumen, is becoming increasingly popular with road authorities and construction companies. In this process, the foamed bitumen is processed in-place with the existing building material. The newly produced bituminous mix is known as BSM (bitumen-stabilized material). After final compaction, it shows a long-term and extremely high load-bearing capacity. Viewed from a long-term perspective, BSM has another advantage: the foamed bitumen mixed in leads to selective adhesion within the cold recycling layer and thus prevents cracking. The permanent layers prepared in this way form the perfect foundation for the final asphalt layer with considerably reduced thickness.
Another advantage of the cold recycling process that cannot be understated is the significant potential for energy savings during material processing. The raw materials do not have to be dried or heated, which means that 10-12 liters of fuel can be saved per ton compared to conventional rehabilitation methods. By almost completely reusing the surface course, the need to transport building materials can be reduced by up to 90%. At the same time, companies can cut resource consumption by 90% and completely eliminate the need to dispose of materials. This results in significantly reduced fuel consumption and lower CO2 emissions. Most importantly, the cold recycling design makes it possible to reduce the use of binders by up to 50% - the area with the greatest potential savings, since binders are still the biggest cost factor in road rehabilitation. Thanks to the special properties of BSM, cold recycling technology results in very low costs over the entire life of the roads.
Since the RAP is immediately recycled and the associated logistics are extremely lean, in-place cold recycling means that projects can be completed much quicker than with conventional rehabilitation methods.
The entire series of machines required for the rehabilitation process can fit in the width of just one lane. On two-lane roads, this means the recycling process is carried out across the width of a single lane, while traffic can be routed along the other side of the roadway past the construction site in one lane. Outside normal working hours, the entire road width is usually available, as the freshly recycled pavement can also temporarily be used immediately after compaction has been completed.
New Generation of Wirtgen Recyclers Also in Use as High-Performance Milling Machines
In addition to the W 380 CRi (775 kW; EU Stage 5 / US Tier 4f) and W 380 CR (708 kW; EU not regulated / US Tier 2) models, the new generation of Wirtgen recyclers also includes the W 240 CRi (775 KW; EU Stage 5 / US Tier 4f) and W 240 CR (708 KW; EU not regulated / US Tier 2).
The W 240 CRi and W 240 CR recyclers can also be equipped with integrated Vögele AB 375 T variable screeds and have a maximum working width of 2,350 mm.
The four cold recyclers can also be used as efficient, high-performance milling machines employing the traditional up-cut process. Thanks to powerful engines and an impressive conveyor belt capacity, they achieve high removal rates at a maximum milling depth of up to 350 mm - for instance when removing complete asphalt packages or for large-scale rehabilitation measures such as on motorways or airport runways.
More from Roadbuilding
Municipalities are responsible for the care and maintenance of vast amounts of roads, from lanes to highways. When those roads are repaired or replaced, there's the potential to generate a significant amount of aggregate material - concrete and asphalt removed from the surface that must be dealt with.
Today's roadbuilding contractors are taking this material and recycling it more than ever before. However, research is showing that some municipalities are far better than others when it comes to using this type of aggregate in their roads - and some are far behind.
Case Construction Equipment has introduced the latest additions to the DV Series of vibratory rollers. With models available in both double drum and combination (front drum with rear pneumatic tires) configurations, these rollers are powerful, easy to transport and nimble enough to work in a variety of residential and commercial construction applications where the operator may encounter tight quarters, curbs, structures and other obstacles.
Wacker Neuson has updated its 1.2-ton tandem vibratory roller line to include improved visibility, curb clearance and easier service access. The RD12 series has dominated the industry since it was originally developed and introduced to the North American market 30 years ago. These popular ride-on rollers are the perfect fit for residential and commercial construction for asphalt and subbase soil compaction of parking lots, driveways, secondary roads and nature trails. Additionally, they are an excellent choice for landscape and golf course contractors to statically roll sod, fairways and greens.
Volvo Construction Equipment is adding the P7110B and P7170B asphalt pavers to the company's Lifetime Frame and Structure Warranty program and also expanding the pavers' extended warranty. The warranties come standard on machines delivered on or after Jan. 1, 2019.
"A penny saved is a penny earned." WITOS FleetView is a must-have for anyone who takes this old proverb to heart, because with the fleet and service management solution from the WIRTGEN GROUP, users and machine operators have diverse advantages that are worth their weight in gold. An example from the field confirms it: GSI-Asphalt, a medium-sized enterprise in Eging am See, near Passau, Germany, has been using WITOS FleetView for years in conjunction with the SmartService service agreement. While SmartService provides for regular inspections in accordance with the instruction manual, the telematics solution WITOS FleetView additionally supports proactive maintenance planning and a rapid response in the event of faults. Both services guarantee maximum machine availability - enhancing the cost-efficiency and value retention of the machinery.
Carlson Paving Products, Inc., an Astec Industries Company, is set to unveil its new wheel paver platform at bauma 2019 in Munich, Germany. The global debut of the CP60 and CP65 wheeled asphalt pavers represent the company's entry into the international 1.8m city paver market.
New light tandem rollers from Ammann make it even easier for operators to work next to obstructions such as curbs.
With the launch of the new Bell B45E 4x4 at bauma, Bell Equipment will add a new model to its range of articulated 4x4 two-axle ADTs. Similar to the sixty-tonner B60E and the smaller Bell B30E 4x4, the new truck is configured to provide a highly efficient and cost-effective transport solution for niche applications in the mining and construction industry.
Carlson Paving Products, Inc. showcased the company's newest screed in Indianapolis: the EZR208. Completing the Tacoma-based manufacturer's lineup of rear-mount highway-class screeds available for all current North American paver models, the EZR208 is a technological leap forward for superior mat quality, performance, and wide width ability.
Dynapac North America upgrades its commercial class paver range with the new FC1700C, FC1400 II, and FC1300 II. The new pavers are equipped with EPA Tier 4 Final certified emissions regulations-compliant engines and offer new features that takes the Dynapac commercial class paver range to the next level. The launch of the new FC1700 will take place at the National Pavement Expo in Nashville, TN.
Carlson Paving Products, Inc. recently unveiled the all-new 2019 CP75 II at World of Asphalt. Featuring all-new ergonomic controls and the choice of material conveyor systems, the new CP75 II joins Carlson's line up of high performance and heavy duty commercial platforms for North American contractors.
BOMAG introduces the new BF 300 series of commercial pavers that offers big paver features and efficiency in a 6-ft (1.8-m) paver. The rubber tire BF 300 P-2and BF 300 C-2 track pavers are designed to elevate paving quality and productivity, while reducing costs on a range of municipal, department of transportation, city development, and bike and cart path applications.
Originally launched in 2017 for excavators, articulated haulers and wheel loaders, ActiveCare Direct is now available on select Volvo asphalt pavers. Starting February 2019, the P7110B and P7170B will be eligible for a one-year free subscription to ActiveCare Direct with a new machine purchase.
Bridgestone Americas, Inc. will exhibit its integrated portfolio of off-the-road (OTR) products, technologies and services at the National Stone, Sand and Gravel Association Aggregates Academy and Expo (AGG1) and World of Asphalt 2019 Show and Conference, Feb. 12-14 in Indianapolis, Indiana. Located at booth 31089, Bridgestone will showcase the benefits of using products backed by integrated technologies to drive increased productivity for customers.
The Mecalac Group has built its innovative reputation on designing and producing construction machinery for urban jobsites. Since the acquisition of the British facility at Coventry in 2017, backhoe loaders, site dumpers and compaction rollers have been added to the existing ranges of excavators and loaders.
Case Construction Equipment has announced a new series of small-frame vibratory rollers. Available in both double drum and combination (front drum with rear pneumatic tires) configurations, these compact rollers are easy to transport and are ideal for working in residential and commercial construction applications where the operator may encounter tight quarters, curbs, structures and other obstacles.
Bomag Americas, Inc. and Komatsu America Corp. are pleased to announce that Komatsu's six company owned dealerships (Edward Ehrbar, Komatsu Equipment Company, Komatsu Northeast, Komatsu Southwest, Midlantic Machinery and Pine Bush Equipment) have entered into an arrangement for the sale and support of Bomag compaction, milling, paving and reclaiming/stabilizing equipment for roadbuilding and other construction markets.
For asphalt contractors to be successful in today's competitive paving market, paver and roller operators must acquire a deep knowledge of the equipment's features and put this knowledge into practice at the jobsite. With long-time equipment operators retiring at a high rate, the next generation of operators must receive extensive in-depth training on the equipment in order to meet project specifications without costly rework so companies can maximize equipment return on investment.
Asphalt Drum Mixers, Inc. offers crane-set and self-erect asphalt storage silos, which are compatible with both the company's own and similar competitive models of asphalt plants. ADM silos are available in many configurations from single self-erecting silo to multiple crane-set silos and several drive-through configurations. Capacities are available between 30 and 300 tons. Custom designs and capacities are also available to accommodate any producer.
November marked the four-year anniversary of the return of the segment-redefining Colorado midsize truck. Introduced as a 2015 model, the Colorado recorded its first full month of sales in October 2014. Since then, Canadian customers have bought 24,000 Colorados.
The RD-1200XT pavement-drying unit from Greenville, South Carolina-based Road Dryer, LLC, quickly dries asphalt and concrete pavement, allowing crews to pave or apply surface treatments or striping after just one pass. The unit, which blows heated air up to 300° F directly downward through multiple nozzles, eliminates the risk of "flying objects," and allows traffic to flow in nearby lanes — reducing congestion caused by traffic restrictions. Available as a simple-to-operate trailer- or truck-mounted unit, the RD-1200XT can be adjusted for 8-ft to 12-ft (2.4m to 3.7m) drying widths. Because it dries pavement on demand, it provides flexibility for contractors and government agencies to meet timetables by minimizing delays from weather- and project-related wet conditions.
Torwel Limited has announced its new and improved Heavy-Duty Snow Pushers in widths from 8' through 18'. All models boast robust design and upgrades that include adjustable skid/wear shoes and easy to use attachment systems that include the universal skid steer mounting system and the new versatile utility tractor/loader global mounting system.
Trends in asphalt paving centre around making it easier and faster to lay down the highest quality pavement. In our latest in-depth report, our panel of experts from five manufacturers take a look at advances and technologies that are available in asphalt pavers, their current level of adoption, the advantages they offer, plus considerations when looking at the purchase of a new machine.
JOSEPH VÖGELE AG are restructuring their extensive range of road pavers and screeds. The world market leader will be dividing its range into two lines: the Premium Line and the Classic Line. The company will also be subdividing its products into up to five classes within those lines.
JOSEPH VÖGELE AG are further extending their range of service and training options for users: using a specially developed app and the associated web special, job-site professionals can now get to grips with the ErgoPlus 3 operating concept quickly and easily with the aid of numerous animations.
Segregation - the separation of asphalt mats that can cause headaches for road maintenance crews - is a hot topic in the paving industry as more contracts include clauses regarding this challenging condition.
As a long-time dealer and rental house serving northern Alberta's asphalt contractors, NC Equipment keeps track of the trends in the industry. As a full-time Dynapac dealer since 2017, it has taken the lead for its customers by bringing in a North American first to help reduce segregation problems on roadbuilding jobs.
Topcon Positioning Group announces the complete acquisition of ThunderBuild BV Group, expanding the portfolio of Topcon paving solutions. Based in Eindhoven, the Netherlands, ThunderBuild develops software related to logistics management with a primary focus in the asphalt market, as well as additional applications that pertain to the transport of bulk materials.
Registration is now open for Volvo's 2018–2019 Road Institute, the paving industry's premier training program. Offering a mix of classroom and hands-on training on a variety of operations and maintenance topics, sessions start in late October 2018 and continue through May 2019.
ASTEC, INC., an Astec Industries company, announces the dates for the 2019 Customer Schools. Six weeks of schools are available. Attendees can choose to attend one of these sessions: January 7-10, January 14-17, January 21- 24, January 28- 31, February 4-7, or February 11-14, 2018.
With 12 million tons of tear-off roofing material being generated each year in the United States, and increased regulations, the industry demands efficient recyclers. Efficiency is second nature to A-1 Sandrock. The company has rose to the challenge over the last few years, growing their shingle disposal program into a massive operation that's convenient for roofers, communities, North Carolina, and the surrounding states.
Designed for use on granular materials and all types of asphalt-mix designs, the new Cat CW16 pneumatic (rubber-tire) roller is available as a standard nine-wheel model with a 69-inch (1,754-mm) compaction width or as an optional 11-wheel model with an 84-inch (2,132-mm) compaction width. The CW16 is designed for efficient performance on highways, city streets, county roads, lane additions, industrial sites, overlays, or other mid-size jobs.
Neal Manufacturing, a Division of Blastcrete Equipment LLC, and a leader in asphalt pavement preservation equipment, offers its Asphalt Road Preservation Package for optimal efficiency and high-quality results on both detail and high-volume sealcoating applications. The package includes Neal Manufacturing's drivable DA 350 dual applicator for quick prep work and sealcoating around curbs and gutters, and its High-Volume Road Maintenance Vehicle that delivers high material output for efficiency on large projects.
New lightweight Bomag single-direction plate compactor designed to avoid asphalt material pushing, shoving and scuffing
An indispensable tool for repair, maintenance and paving applications, the new Bomag BVP 12/50 A single-direction vibratory plate compactor is specifically designed and equipped for asphalt compaction, expanding the machine's use beyond traditional soil compaction. This asphalt specialist features a base plate specifically designed to avoid asphalt material pushing, shoving and scuffing to deliver a superior finish. The highly wear-resistant cast iron base plate delivers exceptional service life.
The Wirtgen Group showed of a number of its latest innovations at Intermat this year, all 5 brands were strongly represented: Wirtgen, Vögele, Hamm, Kleemann and Benninghoven. Visitors had the chance to talk with experienced applications experts from the Group and got up to speed on the latest technologies for the entire road construction cycle while learning more about the Wirtgen Group's extensive range of service offerings. Here is an overview of some of the highlights:
W 150 CFi with 1800-mm milling drum assembly leads the Wirtgen line-up.
Hamm's leading-edge CompactLine of 15 smaller-sized rollers combines cutting-edge design with practical functionality.
The 9.9-ton (9-metric-tonne) DV+ 90i VV-S (vibration in both split drums), the DV+ 90i VO-S (vibration and oscillation in split drums), and DV+ 90i VT-S (vibration and pneumatic combi roller) are the latest tandem rollers in Hamm's DV+ series.