The Roadtec RP-170e is a rubber-tire 8’ (2.5m) Highway Class, asphalt paver. The machine features a 6' 4" (1905 mm) wheelbase designed to offer greater maneuverability without sacrificing performance in traction or pushing power. The hopper width is 10" 5" (3175 m) with a 11.5 ton (10.4 mt) capacity.
The Ontario Hot Mix Producers Association (OHMPA) recognized the best of the best at its annual Fall Asphalt Seminar held on December 1 at the Universal Eventspace Conference and Event Centre in Vaughan. This year marked the event’s 25th anniversary and record number of nine asphalt plants received the 2016 Trillium Awards and 14 plants were recertified.
Caterpillar Inc. is adding oscillatory vibration to its expanding lineup of asphalt compactors. The new CB10 is a 10-metric-ton asphalt compactor that can be equipped with a combination of oscillatory and vibratory drums. The CB10 with oscillation technology builds upon the proven durability and performance offered by existing Cat asphalt compactors and delivers the solutions that helps contractors become more versatile, productive and profitable.
Modern construction machines are high-tech units whose engineering enables more functions to be carried out than ever before. Whether these are recognized and used by operators is crucially dependent on the quality of the operating concept. So that the operators of Hamm rollers can use all the functions to their full extent, the development team attached the utmost importance to simple, intuitive operation. No easy task, since the modern rollers are complex tools. With the new Easy Drive operating concept, Hamm has succeeded in pulling off this balancing act. It enables drivers to respond quickly and correctly, even without extensive previous knowledge. This is made possible through a minimal number of intelligently arranged switches, good visibility in the operator’s platform and short learning and familiarization times.
One of the most critical problems in asphalt pavement construction today is achieving a long lasting, longitudinal joint. It is costing pavement owners billions of dollars worldwide in premature repair of the joint. This problem has been recognized for a couple of decades, discussed at many asphalt pavement seminars, and has been the subject of much research, yet there has been little or no progress in many jurisdictions.
If the technological revolution could be described in a single word, it would be “data.” More jobsite information is being gathered, stored, documented and analyzed than ever before. Adding a bit more description beyond “data,” the phrase “real time” would be most appropriate.
PB Loader Corporation is currently introducing a redesigned version of the company’s popular B10 Pothole Patcher. The unit’s new hefty design includes a 10-cubic-yard, double-wall constructed, heated container that allows road crews and contractors to remain on the job for longer periods of time performing pothole patching operations. The new B10 is designed to improve operator safety and productivity.
The Patch King pothole patcher from Process Heating Company (PHCo) heats hot or cold mix patching material and keeps it at the ideal working temperature, from 50° to 350° F, for at least 10 hours. The unit features Lo-Density open-coil drywell-style heaters, evenly distributed across the sides, bottom, ends and discharge doors, which dissipate up to 1 watt per square inch of heat. The result is reliable, consistent heat throughout the hopper, without cold or hot spots in the material. Operators can either heat the material at the beginning of the day, set a time clock for early morning pre-heating or keep it hot overnight for more efficient use of material and improved worker productivity. Because it heats without flame, the Patch King eliminates safety concerns from fossil-fuel-heated patching equipment.
Cedarapids CR552 rubber tire paver from BOMAG delivers the traction and power required for mainline paving applications such as airports, interstates, highways and major county roads, while meeting stringent Tier 4 Final emissions standards. Boasting a heavy duty rear drive motor and the industry’s largest drive tire that provides up to a 50 percent greater footprint than competitive pavers, the CR552 paver delivers superior, track-like traction. Its heavy-duty hopper construction supports hopper capacities up to 27 tons (24.5 t), allowing for extended paving intervals between truck exchanges while offering paving capacities in excess of 800 TPH (700 t/hr).
Caterpillar Inc. has announced the availability of the PM620 and PM622 Cold Planers. The machines are high-production, highly maneuverable half-lane milling machine that perform controlled full-depth removal of asphalt and concrete pavements in a single pass. Operating weight for the PM620 is approximately 33 330 kg (73,260 lb) and the PM622 is approximately 33 900 kg (74,580 lbs). Transport weight for the PM620 is approximately 29 400 kg (64,680 lb), and the PM620 is approximately 30 000 kg (66,140 lb).
Along the Appalachian Mountains from the Canadian–U.S. border to Tennessee runs Interstate 81 (I-81). Stretching for 1,376 km (855 miles), the route carries over 12 percent of the nation’s gross domestic product, and has subsequently been named the ‘trucker’s highway’. In recent years, hundreds of distribution warehouses have sprouted along this heavily trafficked corridor as Americans shift to online buying and demand shorter delivery times.
Designed as both a material transfer vehicle (MTV) and paver to significantly increase utilization rates, the rubber track Cedarapids CR662RM RoadMix from BOMAG features a new 260-hp (191-kW) Tier 4 Final Cummins diesel engine that delivers the power needed for high production applications. Boasting a low, 21-psi fully loaded ground contact pressure, the CR662RM can be used on all paving lifts, including the critical base layer, to virtually eliminate all forms of material and thermal segregation. Unlike MTVs with empty wheel loads in excess of 75 psi, the low-psi rubber track RoadMix machine does not cause rutting on the base layer, can cross bridges fully loaded and is transported to the jobsite like a 10-foot paver, so contractors can finish mainline and airport paving applications quickly, efficiently and with high mat quality.
Smaller, commercial jobs are demanding in their own ways, whether they are the parking lot of a new superstore, a new subdivision, or a small driveway on a county road. Gone are the days of “Make it black and don’t look back.” Today’s contractor must be aware of changing grade conditions, irregular mix designs and machines that have changed through the years as well.
The new Ammann ARR 1575 Tier 4 Final Roller overcomes high moisture content in cohesive soils and clays while consuming less fuel than its predecessors.
Hamm displayed a prototype of a hybrid powertrain for the HD+ 90i tandem roller at Bauma. The innovative concept has been developed to save fuel costs and maintenance effort. This new development combines the traditional internal combustion engine with a hydraulic accumulator. The internal combustion engine covers the base load while a hydraulic accumulator meets peak loads.