innovations in paving technology - institute of asphalt · 2020-03-12 · wechsel des folienlayouts...

:

Wechsel des Folienlayouts

CLOSE TO OUR CUSTOMERS

INNOVATIONS IN PAVING TECHNOLOGY

Richard Allsopp – Operations Director

:


Agenda

Machine Leveling and Control

Material Feeders

Spray Jet Pavers

In Line Paving

Big Data & Automisation

Milling Quality

:


Niveltronic

:


Navitronic Basic

The next dimension in 3D control is the Navitronic Basic.It can do more than just conventional levelling, i.e. controlling the installation height and bank angle; the Navitronic Basic also controls the installation position automatically.

Precise installation position due to displacement sensors.In order to achieve the highest installation accuracy, the installation position is precisely controlled by the screed extraction parts. Displacement sensors on the pull-out parts determine the current width of the screed. The user has two options for adjusting the positional accuracy: Either he defines the left or right screed as a fixed installation reference - then is installed along this fixed edge, or he sets a fixed pave width, which over the entire length of the track exactly on the given Location is maintained. Thanks to the very precisely adjustable pull-out parts even deviations can be easily compensated by the steering of the paver through the width adjustment of the screed.

With the Navitronic Basic, the driver controls the installation direction manually. He gets the track and position of the paver on the display of the 3D control exactly displayed and can thus lead the machine precisely without artificial reference.

:


Niveltronic +3D

:


Navitronic Plus

The Navitronic Plus offers the highest expansion level in terms of 3D control for road pavers.It has the same features as the Navitronic Basic, which means that the leveling and control of the installation position are fully automatic. In addition, the system now handles the steering of the VÖGELE tracked pavers. This makes the Navitronic Plus a "true" 3D control system, which in this way is only offered by VÖGELE.

Automatic control of the installation direction.The Navitronic Plus directly engages the track of the tracked paver via the machine control. Thus, the paver whose current position is permanently recorded by the laser total station or GPS system is guided along the planned route fully automatically. On the display of the 3D control, the installation team can check the position of the paver and any deviations from the target line. The 3D control is a patent of JOSEPH VÖGELE AG

:


Navitronic Basic/ Navitronic Plus

Maschine

Linke Seite Rechte Seite

:


PowerFeeder

MT 3000-2 Offset

:


At a Glance

► Width of conveyor belt: 1.1m

► Conveying capacity: up to 1,200 tonnes/h

► Transport width: 3m

► Operating speed: up to 24 m/min.

► Travel speed: up to 4,5 km/h

► Powerful DEUTZ engine rated at 142 kW

MT 3000-2 Offset

:


Conveyance of Material

► Large receiving hopper holding 11 tonnes.

► Proportionally controlled worm conveyors with large worm blades (400mm) for homogeneous conveyance of mix, without residues.

► Sturdy and long-lasting conveyor belts.

MT 3000-2 Offset

:


Conveyance of Material

MT 3000-2 Offset

:


Transfer of Material

► For large-scale road construction projectsor pavement rehabilitation jobs (highways, motorways).

► Transfer of 25 tonnes within 60 secondsdue to high-performance conveying concept.

► Speeds up job site logistics.

► Quick transfer of mix for an enhanced process safety.

MT 3000-2 Offset

:


Material Transfer via Pivoting Conveyor

► For feeding paver from the side.

► Conveyor can be pivoted to the left or right by 55 degrees.

► Dumping point of material: 3.5m (maximum)beyond the feeder.

MT 3000-2 Offset

:


Field of Applications

► Feeding the paver from the side when placing base course material in deeply milled out strips.

► Filling cavities in safety barriers on motorways.

► Feeding the paver when surfacing footpaths or cycle paths.

► In all those places where normal feed with material is not possible.

MT 3000-2 Offset

:


Lorem ipsum dolor sit amet

SUPER 1800-3i SprayJet

:


Lorem ipsum dolor sit amet

:



The Highlights

The world's unique spray paver.Clean spraying plus process reliability. "Dash 3" features: "VÖGELE EcoPlus", "AutoSet Plus", "PaveDock Assistant" and "SmartWheel“.ErgoPlus 3 operating system."Dash 3" service concept.Ultramodern and precise screed technology.

:


Cost-effective asphalt paving method for rehabilitating and replacing the surface course.Can be used for all traffic areas.

Layer thickness normally no more than 1.2 to 2cm.

No costly adaptation of kerbs or other pavement fittings.Three to five times faster pave speed compared with conventional asphalt paving.

Bitumen emulsion sprayed and asphalt placed in a single pass.Job site vehicles never drive over the sprayed surface and never damage the emulsion film.


Paving Thin Overlay on a Spray Seal or Tack Coat

:


The Spray Technology

Five spray bars with a total of 24 nozzles.Emulsion applied over the entire surface without bald spots due to arrangement of spray bars.

Rate of spread accurately metered within a range of 0.3 to 1.6kg/m².Full coverage of the existing surface with emulsion.

Emulsion applied at a low spray pressure of no more than 3 bar.Three separate emulsion circuits.


Clean Spraying Plus Process Reliability

:


The Spray Nozzles

Two different types of slotted spray nozzles:– Size 10 nozzles: 100% throughput (standard)– Size 16 nozzles: 160% throughput

The spray nozzles are opened and closed pneumatically by means of a compressed air system integrated into the SprayJet module for this purpose.

The nozzles do not spray continuously but operate instead in pulsed mode.


Clean Spraying Plus Process Reliability

:


All the settings required for replenishing, circulating and heating the emulsion can be controlled and monitored directly via the touchscreen.

Depending on the type of nozzles fitted and the rate of spread selected, the maximum pave speed is calculated by the SprayJet module‘s control system and displayed on the ErgoPlus 3 paver operator's console to guarantee uniform application of the emulsion.The rate of spread can be set here very easily and the nozzles calibrated or switched on and off individually.Correct operation of the front spray bar is monitored electronically, as it is out of the operator's sight.Lines and valves are cleaned in a fully automated process controlled by a separate program.


Control Panel for SprayJet Module The SprayJet module is operated entirely via the ErgoPlus 3 control panel installed on the module. The new "Dash 3" generation VÖGELE spray paver offers a host of convenient automatic functions to meet practical needs.

The automatic functions simplify preparation of the spray module, the spraying process itself and maintenance of the spray module.

:


Monitoring Screen “Spraying“

The entire spraying process is monitored on this screen. The operator can see all settings and values at a glance here, such as spray nozzle activity (active / inactive / switched off) and spray pressure.

Working Screen “Nozzle Set-Up“

The type of nozzles fitted is entered via this menu, and nozzles can be tested and the rate of spread checked here.


:


A WIRTGEN GROUP COMPANY

INLINE PAVE

:


SUPER 2100-3 InLine Pave

:


Complete In Line Line Pave Train

Material Feeder Binder Course Paver Wearing Course Paver

MT 3000-2 OffsetInLine Kit

SUPER 2100-3 IPAB 600 TP2 Plus

SUPER 1800-3

:


:


SUPER 2100-3i InLine Pave

The InLine Pave train

MT 3000-2i Offsetalternates between binder course and surface course mix, transporting each material to the respective paver.

SUPER 2100-3i IP lays down the binder course and transports the surface course mix by means of a special transfer module. Is a modified standard paver.

:



AB 600 TP2 PlusHigh-Compaction Screed with pulsed flow hydraulics for the two pressure bars. This screed compacts the binder course to such a degree that it can be driven over by the surface course paver.

SUPER 1800-3ipaves the surface course. This machine has undergone minimal modification: crawler tracks with wide track pads, a water spraying system and thermally insulated extra material hopper which can hold 25t of mix.

:



Wide range of applicationsPave widths from 3 to 8.5m

Pavement rehabilitation and construction

Paving of all highway types

:



The paving methodWhen using the "hot on hot" process, a different ratio of surface to binder course may be selected. Instead of the usual 8cm-thick binder and 4cm-thick surface course, it is possible to pave a surface course just 2 to 2.5cm thick. What is more, a tack coat (bitumen emulsion) is not required.

4cm

8cm

22cm Base course

Tack coat

Binder course

Surface course

Tack coat

2cm

10cm

22cm

:



Advantages of the "hot on hot" process

Cost savingsThe process saves on expensive bitumen-rich surface course mix, instead using more lower-priced binder course mix with a high stability and a greater resistance to deformation. There is no need to spray bitumen emulsion, which saves time and material.

Longer service lives of road pavementsThe optimal interlocking of the binder and surface courses guarantees an excellent bond between layers. Furthermore, the surface course can be compacted effectively, achieving a sufficiently low voids content –a factor which extends the pavement’s service life considerably.

Using a higher proportion of binder course mix with a high resistance to deformation and a lower proportion of bitumen-rich surface course mix increases the pavement’s stability. Deformation and rutting are reduced substantially.

Easy paving in low-temperature regions or during the cold seasonWhen the binder and surface courses are paved simultaneously, the total thickness ensures that the pavement does not cool as quickly. The period of time available for compaction is prolonged, so that paving work can be carried out to a high standard of quality even in cold weather.

:


WITOS PavingProcess optimization and documentation in asphalt paving

Automating or optimising the process?

:


WITOS®: Process Modules

Vögele: WITOS Paving

Hamm: HCQ

:


"AutoSet Plus" incorporates two handy automatic functions: the Repositioning and Transport function makes it easier to change between work sections on the job site and transport the machine between sites. The paver is automatically set to transport mode at the push of a button and the current settings are saved. Current paver and screed settings are stored using the Paving Programs function and can be retrieved when required at a later date, for instance, on job sites where conditions are similar.

Auto Set Plus

"AutoSet Plus"

Repositioning and Transport Function Paving Programs

:


Expert

Alert

Remote Diagnostics/Programming

Communicate

DIAGNOSTIC TROUBLE CODE

Jobsite

John Deere WorkSight™

Repair equipment

Dealer Technician

John DeereMachine Health

Monitoring CenterCustomer DTC

John Deere DealerMachine Monitoring Center

MACHINE MONITORING

NETWORK

Expert

Alert

:


Strong together:Wirtgen Group and John Deere

:


Autonomous compaction

:


Autonomous Hamm Roller

:



COLD MILLINGMAKES THE DIFFERENCE

Increase quality during rehabilitation due to high-grade milling results

:



QUALITY CRITERIA FOR COLD MILLING

- Milling depth

- Longitudinal and cross evenness (cross slope)

- Surface texture

:


Criteria milling depth• Measurement of reference surface• Generally, the upper milling depth is being measured

High-quality milling results – milling depth

:


The WIRTGEN levelling system can be operated with different types of sensorsThese include the Multiplex system, laser levelling or 3D levelling which uses the interface included in the system

Hydraulic cylinder sensor Slope sensor

Ultrasonic sensor Sonic Ski sensor

High-quality milling results – milling depth

:


Levelling with multiplexReference:Surface (road)

Sensor: Displacement sensor hydraulic cylinderSide plate + 2 ultrasonic sensors

Actual milling depth:Average value of 3 sensor signals

Advantage:Longitudinal waves between the 3 sensors are being compensated very well

High-quality milling results - evenness

:


Levelling with multiplex

Milling result with standard scanning

Milling result with multiplex system

:


High-quality milling results – surface texture

Criteria for texture (roughness)• In most cases optical assessment• Sand patch method

:


Milling drum tool spacing•Large tool spacing (e.g. LA 25), rougher surface•Small tool spacing (e.g. LA 6), finer surface

Milling speed of machine•High milling speed (e.g. 20 m/min.), rougher surface•Low milling speed (e.g. 10 m/min.), finer surface

Milling drum speed•Low milling drum speed (e.g. 96 u/min.), rougher surface•High milling drum speed (e.g. 127 u/min.), finer surface

Influence texture / roughness

:


Milling drum types of Wirtgen FCS light system

Eco Cutter Standard Fine milling Micro fine milling

Milling drum

Tool spacing

LA 20–25 mm LA 12-15-18 mm LA 8–10 mm LA 3-5-6 mm

:


Impact of influencing parameters LA15

Milling surface with milling drum tool spacing 15 mm at 30 m/min milling speed

:

Wechsel des Folienlayouts 98

min

-11

16

min

-11

29

min

-1

5 m/min 10 m/min 20 m/min 30 m/min 50 m/min

Impact of influencing parameters LA15

:


Standard / sand patch 90 – 130 mm

Fine milling / sand patch 130 – 170 mm

Micro fine milling / sand patch 170–320 mm

Rough milling / sand patch 20 – 90 mm

Milling speed (m/min)

San

d pa

tch

diam

eter

(m

m)

Assessment of roughness

:


Which final outcome of the milling surface is required?

Advantages / Disadvantages 3-D milling

Completely new and precise layerFast and precise construction method (height tolerance ±5 mm possible)Alternatives only laser or stringlineThen high cost savings but comparatively 30% higher milling costs

Smooth material removal, less new material and comparably high cost savings possible

High quality of new asphalt layer due to constant placing of layers

Milling and „smoothing“ of roads without new absolute referencesSimpler levelling methods possible, e.g. copying or „Multiplex“ (faster and significantly less expensive)

e.g. rural roads in 3-D more complex(layer thicknesses must be adhered to)

:



THANK YOU VERY MUCH FOR YOUR ATTENTION.

innovations in paving technology - institute of asphalt · 2020-03-12 · wechsel des folienlayouts...

Documents