Paver innovations The manufacturers are also rolling out several new and improved concrete paving models, with versatility and adaptability high on the agenda. GOMACO is now offering a novel independent IDBI attachment that allows dowel bar insertion behind a paver to form the transverse joint. The IDBI attachment is a new generation bar insertion system.
Terex is aiming its Bid-Well machines at large airport and highway applications
The manufacturers are also rolling out several new and improved concrete paving models, with versatility and adaptability high on the agenda. 218 Gomaco is now offering a novel independent IDBI attachment that allows dowel bar insertion behind a paver to form the transverse joint. The IDBI attachment is a new generation bar insertion system. The attachment is powered by its own C4.4, Tier 3, 178 Caterpillar diesel rated at 68kW, with a CAN cable connecting its systems to the controller on the paver. The two systems can communicate and when the paver stops and starts, the tamper bar and screed on the IDBI turn on and off automatically. The new design features a new IDBI tray that is said to be stronger, more compact and makes width changes easier. Adjustable-height bar extractors allow contractors to change the setup quickly to cope with different bar sizes and varying insertion requirements.
The IDBI controls have been designed in-house by GOMACO. The new G+ control system features the same graphical display as the proven G22 controller and the system also offers troubleshooting capabilities and other features to make start up and paving fast and easy.
The independent IDBI attachment features it own outriggers to aid in attaching the unit to the paver and also for loading and unloading the unit for transport. The outriggers can be hydraulically lowered and placed on the ground to support the full weight of the IDBI as it is attached to or detached from the paver. These outriggers have 1219mm of stroke and are also used to raise the unit so a trailer can be backed underneath for transport. The attachment can now be fitted to all GOMACO slipform pavers, from paving lanes or shoulders as narrow as 3m wide with the four-track Commander III, to expressways as wide as 15.2m with the GOMACO GP-4000.
307 Power Curbers has developed the new Max Package for its versatile 5700-C allowing it to slipform higher and wider forms than before. This new variant effectively slots into the line-up between the existing 5700-C model from Power Curbers and the 2700 unit from sister firm Power Pavers. The new machine is designed to pour variable barriers. The right rear leg of this new variant is bolted at the rear frame but has been moved 1.22m further out using a spacer. The frame is 203mm longer to allow the greater crawler clearance required from the trimmer, while the machine still offers the capability for both left and right side pours, although in 95% of applications Bullock believes customers will be generally pouring off the right side. The machine is being supplied with a 610mm spacer for barrier works and a 1.52m spacer for use in the wider paving applications. Bullock said, "The kit for the wide paving option includes a leg forward/all-steer extension, a side bar inserter and sideplates." Because the client will not use the auger or trimmer, the power for the existing engine is sufficient to allow paving widths of up to 3.65m as well as barriers up to 2.4m high. Each vibrator uses around 3kW. The mounting plates on the right side allow contractors to bring the right rear post forward, redistributing weight as well as improving performance when using large barrier molds and when paving in the centre-pour position. The customer can set the machine to pave an array of widths and barrier heights and it is offered with different extension sections, while other options include a manifold for additional vibrator circuits. When contractors have completed large jobs with the 5700-C-Max it can also be quickly adjusted for conventional kerb and gutter work by moving the right post to the standard position, while the machine retains its 2.5m transport width.
1222 Terex Roadbuilding is targeting high performance concrete paving projects with its Bid-Well 5000 Automatic Roller Paver. The machine is designed for use on projects such as airport runways, taxiways and aprons as well as highways. A novel dual vibration system is said to provide fast consolidation of concrete pavements up to 609.6mm thick, allowing a high quality finish. A rugged truss system design means that the paver can be set up or change widths in just a few hours, compared with the days needed for some competing designs. The machine also offers a cost-competitive option to slipform pavers at around one third of the price according to Terex.
Well proven, Bid-Well 5000 pavers have been used on an array of airport projects worldwide and one of the key features is the Rota-Vibe vibration system. According to the firm this provides efficient concrete consolidation of the surface and allows effective sealing of difficult-to-finish concrete caused by factors such as harsh mix designs, unpredictable delays, low slump specifications and wind exposure. The Rota-Vibe system delivers up to 83.3Hz over the 394mm long vibrating roller and can reconsolidate the top 50.8mm of concrete, delivering a dense and uniform concrete surface. Dual 1.82 long paving rollers help optimise surface smoothness and the system is mounted on the paving carriage and just in front of the paving augers, while the carriage features dual chain drive for reliability. The twin hydraulic vibrators can deliver frequencies of up to 225Hz while the rate can be easily adjusted if required. The vibrators can be moved laterally as well as fore and aft during paver set up, with vertical position is quickly adjusted during operation using a hand crank.
The 5000's truss construction allows quick set-up and width changes and features a 1.22m truss depth with all-welded steel construction with a design said to prevent frame deflection at paving widths from 7.9-20.7m. The machine is mounted on 152.4mm legs, with four-bogie drive for smooth, accurate frame advancements, with a self-propelled, steerable nose wheel helping onsite movement. Operators control the machine and paving carriage from the platform mounted on the truss frame or from ground level using the radio remote control unit. Power for the Bid-Well 5000 comes from twin 26.2 kW engines, with the first powering machine travel and paving carriage movement, while the second drives the paving rollers, the Rota-Vibe and the two augers.
The IDBI controls have been designed in-house by GOMACO. The new G+ control system features the same graphical display as the proven G22 controller and the system also offers troubleshooting capabilities and other features to make start up and paving fast and easy.
The independent IDBI attachment features it own outriggers to aid in attaching the unit to the paver and also for loading and unloading the unit for transport. The outriggers can be hydraulically lowered and placed on the ground to support the full weight of the IDBI as it is attached to or detached from the paver. These outriggers have 1219mm of stroke and are also used to raise the unit so a trailer can be backed underneath for transport. The attachment can now be fitted to all GOMACO slipform pavers, from paving lanes or shoulders as narrow as 3m wide with the four-track Commander III, to expressways as wide as 15.2m with the GOMACO GP-4000.
Well proven, Bid-Well 5000 pavers have been used on an array of airport projects worldwide and one of the key features is the Rota-Vibe vibration system. According to the firm this provides efficient concrete consolidation of the surface and allows effective sealing of difficult-to-finish concrete caused by factors such as harsh mix designs, unpredictable delays, low slump specifications and wind exposure. The Rota-Vibe system delivers up to 83.3Hz over the 394mm long vibrating roller and can reconsolidate the top 50.8mm of concrete, delivering a dense and uniform concrete surface. Dual 1.82 long paving rollers help optimise surface smoothness and the system is mounted on the paving carriage and just in front of the paving augers, while the carriage features dual chain drive for reliability. The twin hydraulic vibrators can deliver frequencies of up to 225Hz while the rate can be easily adjusted if required. The vibrators can be moved laterally as well as fore and aft during paver set up, with vertical position is quickly adjusted during operation using a hand crank.
The 5000's truss construction allows quick set-up and width changes and features a 1.22m truss depth with all-welded steel construction with a design said to prevent frame deflection at paving widths from 7.9-20.7m. The machine is mounted on 152.4mm legs, with four-bogie drive for smooth, accurate frame advancements, with a self-propelled, steerable nose wheel helping onsite movement. Operators control the machine and paving carriage from the platform mounted on the truss frame or from ground level using the radio remote control unit. Power for the Bid-Well 5000 comes from twin 26.2 kW engines, with the first powering machine travel and paving carriage movement, while the second drives the paving rollers, the Rota-Vibe and the two augers.
