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Asphalt/bituminous mixture

Advanced asphalt slab roller compactor

Advanced electro-mechanical multi-size slab compactors, closed loop control system

  • Download:
EN 12697-33, method 5.2 | ASTM D8079
Main features
  • Completely electromechanically operated
  • Possibility to program user defined procedures as free combination of load and displacement (or combined) controlled cycles
  • Completely electromechanically operated
  • Conforming to EN 12697-33, 5.2 method and ASTM D8079
  • 21” All-in-one touchscreen PC controlled , PC and software included
  • Includes the compaction procedure defined in the brand new EN 12697-33 method 7.3, providing at the beginning a controlled displacement compaction which can grant a flat surface followed by a load compaction phase , which can replicate the real compaction on the road surface
  • Base and foot adjustable heating system available as option
  • Mould dimensions: 500 x 400, 500 x 300, 400 x 300, 300 x 300 and 320 x 260 mm, 195 mm height
  • Compaction direction in the longest (major) mould dimension to obtain specimens of the proper length conforming to Standard
  • Vertical balanced of sliding cover for easy access and complete three side view
  • Maximum compaction load 30 kN
  • User defined controlled linear speed up to 300 mm/sec and adjustable pause at the mould inversion point
  • Ideal for producing test beams for 4-Point bending (EN 12697-24, EN 12697-26, AASHTO T321) and slabs down to 38 mm
  • Vibrating roller option, adjustable from 10 to 50 Hz
  • PRO-COMPACT* closed loop control slabs
  • Customization of compacting cycle which can be saved and recalled from the database
 
*PRO-COMPACT closed-loop is an innovative mechanical and electronic control that combines orthogonality of the load, pendulum motion of the head and sinusoidal non-friction forward-reverse carriage movement. This results in an optimally compacted sample that features Planarity Regularity and hOmogeneity (PRO). The combined load/displacement compaction procedure provides at the beginning of the test a controlled displacement compaction, which can grant a flat surface of the compacted slab, followed by a load compaction phase, which can replicate the real compaction on the road surface.
General description
General description
The slab compactors can compact asphalt slabs to a target density applying specific loads corresponding to those of pavements rollers used in the highway construction. The slab can be used for: 
  • Wheel tracking test down to 38 mm thickness
  • Cored to provide specimens for indirect tensile, static and dynamic creep tests
  • Cut into beams for benfing fatigue tests
The slab compactors are proposed in two versions:
  • Standard models
  • Advanced models, which also satisfy the compaction procedure of the brand new EN 12697-33 method 7.3 and include other important features. 
Electromechanical slab compactors feature a compacting system by roller segment head radius 535 mm. The roller segment freely moves by simple friction for better compaction uniformity. A brushless motor (standard models), or stepper motor (advanced models) moves vertically the roller segment under displacement control. the vertical load is applied orthogonally to the axis of the travel motion. the mould carriage moves back and forth by linear movement. The longitudinal (major) mould dimension correspond to the compaction direction so it is possible to obtain specimens of the proper lenght conforming to Standards. The lifting machine cover permit an easy access to the mould area. In the "rest" position, the mould is close to the operator for easy positioning while the roller segment is lifted and positioned at the back of the machine.
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Technical specifications

Models 77-PV41C05
77-PV41C06
Machine control - Vertical load and/or displacement control of the roller segment by stepper motor, measured directly by linear transducer to verify in real time the specimen thickness for more accuracy
- Real time measurement and control with a closed loop logic of compaction load by two precision strain gauge load cells. This system permits to verify possible discrepancies of the compaction due to the wrong distribution of asphalt in the mould  and to any other unexpected malfunctions, with warning to the operator
- Machine fitted with sensors to confirm the mould in position and for the automatic set-up of the horizontal travel
Software - 21'' Touchscreen integrated PC
- Fully programmable PC software operating in Windows®
- Set up of customized compaction sequence as free combination of load/displacement controlled cycles
- Selection, customization and storing of test parameters
- Customization of the compacting sequence to be saved and recalled from the database
- Graphic display of displacement / force vs. number of passes or load vs. displacement
Max. vertical force 30 kN
Load measurement By two precision load cell
Compacting device Roller segment, radius 535 mm
Back and forth horizontal travel Adjustable: 300/320 mm
                        400 mm
                        500 mm
                        By software
Trolley speed Adjustable up to 300 mm/s
Adjustable pause at inversion point
Mould dimensions* 320 x 260 x 195 mm
300 x 300 x 195 mm
400 x 300 x 195 mm
500 x 300 x 195 mm
500 x 400 x 195 mm
Roller vibration Yes, adjustable frequency from 10 to 50 Hz (optional)
Heated foot Yes (optional)
Heated base Yes (optional)
Electrical supply 380 V, 50 Hz, 3 ph, or
220 V, 60 Hz, 3 ph
Power rating 3000 W
Overall dimensions
(l x w x h)
1300 x 800 x 2040 mm
Weight approx. 650 kg
*To produce slabs down to 38 mm thickness. Maximum slab thickness varies with bitumen mixes composition.

Ordering info

77-PV41C05
Advanced multi-size electromechanical slab compactor
. For compaction of 500x400 mm, 500x300 mm, 400x300 mm, 300x300 mm and 320x260 mm slabs. Includes the compaction procedure defined in the brand new EN 12697-33 7.3 and the PRO-COMPACT control feature. Controlled by all-in-one touch-screen integrated PC, load and deformation measurement, software controlled mould travel, performing user defined free combination of load/displacement controlled compaction sequences. Supplied without moulds and compaction sector heads (see accessories).
380V, 50Hz, 3ph+N
      

77-PV41C06
Advanced multi-size electromechanical slab compactor
Same as above but 220 V, 60 Hz, 3 ph

Accessories

Interchangeable sector heads
77-PV42001 
Interchangeable sector head to produce slabs 320 mm long x 260 mm wide

77-PV43001 
Interchangeable sector head to produce slabs 300 mm long x 300 mm wide

77-PV44001 
Interchangeable sector head to produce slabs 400 mm long x 300 mm wide

77-PV45001 
Interchangeable sector head to produce slabs 500 mm long x 300 mm wide

77-PV46001 
Interchangeable sector head to produce slabs 500 mm long x 400 mm wide


Interchangeable sector heads complete with heating system
To be completed with 77-PV43012 Temperature control system (see Upgrading options)

77-PV42011 
Interchangeable sector head to produce slabs 320 mm long x 260 mm wide. Complete with heating system.

77-PV43011 
Interchangeable sector head to produce slabs 300 mm long x 300 mm wide. Complete with heating system.

77-PV44011 
Interchangeable sector head to produce slabs 400 mm long x 300 mm wide. Complete with heating system.

77-PV45011 
Interchangeable sector head to produce slabs 500 mm long x 300 mm wide. Complete with heating system.

77-PV46011 
Interchangeable sector head to produce slabs 500 mm long x 400 mm wide. Complete with heating system.


Moulds
77-PV42102 
Steel mould 320x260 mm, 195 mm high, to be filled at 155 mm max.

77-PV43102 
Steel mould 300x300 mm, 195 mm high, to be filled at 155 mm max.

77-PV44102 
Steel mould 400x300 mm, 195 mm high, to be filled at 155 mm max.

77-PV45102 
Steel mould 500x300 mm, 195 mm high, to be filled at 155 mm max.

77-PV46102 
Steel mould 500x400 mm, 195 mm high, to be filled at 155 mm max.

Upgrading

 (to be specified at the time of order)

Heating control system of sector heads fitted with heating system 
77-PV43012 
Compaction sector heating system. Adjustable up to 140°C


Heated base option, only suitable for the Advanced models
77-PV41C00/UP 
Heating system incorporated in mould base support, to maintain test tempearture. Adjustable up to 120°C.


Vibrating roller option adjustable from 10 to 50 Hz
77-PV43042
Vibrating roller option. For 220 V, 50-60 Hz, 1 ph models

Documents

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