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Gyratory compactor GYROCOMP

Gyratory technique basically consists in a compaction of a bituminous mixture contained in a cylindrical mould with the simultaneous action of a vertical static compaction and of the shearing action resulting from the rotation of the mould on its inclined axis. The compaction data is measured and recorded during the test. GYROCOMP gyratory compactors, used for the past twenty years all over the world, are the reference point in terms of user-friendliness combined with reliability and ergonomics, and they have been produced in hundreds of units. Thanks to this experience Controls is introducing the third generation of gyratory compactors with the new GYROCOMP gyratory compactor. The new compactor includes and increases the advantages of the previous models.

Features

● High productivity, designed for continuous and heavy use

● High rigidity thus lightweight due to the propriety orbital system

● Compact and lightweight, also ideal for mobile laboratories

● Very reliable and accurate

● Certified to EN and AASHTO

● Approved as Superpave™ Gyratory Compactor in U.S.A.

● Integrated touch-screen control panel with large display

● Sliding transparent door

● Full safety and ergonomic design

● Integrated electromechanical extruder option

● 2 years full warranty


Introduction

Introduction

Gyratory technique basically consists in a compaction of a bituminous mixture contained in a cylindrical mould with the simultaneous action of a vertical static compaction and of the shearing action resulting from the rotation of the mould on its inclined axis. The compaction data is measured and recorded during the test. GYROCOMP gyratory compactors, used for the past twenty years all over the world, are the reference point in terms of user-friendliness combined with reliability and ergonomics, and they have been produced in hundreds of units. Thanks to this experience Controls is introducing the third generation of gyratory compactors with the new GYROCOMP gyratory compactor. The new compactor includes and increases the advantages of the previous models.

Operating principle

The standards specify the method for compaction of cylindrical specimens of bituminous mixtures using a gyratory compactor, Such compaction is achieved by combining a rotary shearing action and a vertical  force applied by a mechanical head. The method can be used for:

● The preparation of specimens of given height at a predetermined density, for subsequent testing of their mechanical properties;

● The derivation of a curve density versus number of gyrations;

● The void content for a given number of gyrations.

The standards apply to bituminous mixtures  (made both in laboratory or from work site sampling), with aggregates not larger than 37.5 mm.

During operation the bituminous mixture is contained within a cylindrical mould (100 or 150 mm dia.). Compaction is achieved by the simultaneous action of a low static compression and of the shearing action resulting in the motion of the centerline of the test piece, which generates a conical surface of revolution, while the ends of the test piece remain approximately perpendicular to the axis of the conical surface.

Description

Robust thus light high stiffness steel monocoque structure, incorporating pneumatic cylinder for vertical load application and electromechanical mechanism for the gyration system with exclusive mould rotation system, granting high accuracy and repeteability of test results, together with stiffness and angle stability values widely within the limits defined in EN 12697-31. Touch-screen user-friendly integrated control panel, large display showing the test graph in real time, on board firmware including 12 languages. Possibility to remote test control by PC. The software language can be defined making the interface suitable for any user needs.

The machine can be fit with the electromechanical extruder. See accessories.

The machine is supplied complete with Height calibration tool, PC software, air hose, operating instructions and calibration certificate.

Models preset to ASTM/AASHTO are supplied complete with traceable certificate of load, displacement and internal angle. Models preset to EN are supplied complete with traceable certificate of load, displacement and internal angle, including all the parameters required in EN 12697-31 Annex C (“stability factor”, “parallelism factor”, “full rotation factor”).

Cylinder moulds, distance plates and air compressor not included. See accessories.


  • TECHNICAL SPECIFICATIONS
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Compacted specimen size: 150 and 100 mm dia.

Sample height: 80 to 200 mm (150 mm)-50 to 125 mm (100 mm)

Consolidation pressure: 80 to 800 kPa (150 mm) -160 to 1400 kPa (100 mm)

Internal angle of gyration: Adjustable from 0.70 to 1.40 °.

   Preset to 1.16° internal angle (78-PV2522,  ASTM/AASHTO models)

   Preset to 0.82° internal angle (78-PV2522/E,  EN models)

 Speed of gyration: adjustable from 15 to 60 rpm

Number of gyrations: adjustable up to 999

● Test programmable either by number of gyrations or specimen height

Communication with PC: RS 232 connections

Internal memory: thousands of tests

Power rating: 1000 W

Dimensions (including extruder bench, w×d×h): 502×753×1940 mm

Dimensions (w×d×h): 469×615×1130 mm

Weight approx.: 100 kg


78-PV2522  

GYROCOMP gyratory compactor, internal angle of gyration preset to 1.16° to AASHTO T312/ASTM D6925.

230-110 V, 50-60 Hz, 1 ph

78-PV2522/E  

GYROCOMP gyratory compactor, internal angle of gyration preset to 0.82° l to EN 12697-31 Annex C.

230-110 V, 50-60 Hz, 1 ph

Note

All models basically comply to EN 12697-10, EN 12697-31, ASTM D6925, AASHTO T312 and SHRP M-002. The only difference between the 78-PV2522  and the 78-PV2522/E  versions, is the angle of gyration, factory set to ASTM/AASHTO or to EN standards. This means that it is possible, with our intervention, to modify from one version to the other the angle of gyration.


Accessories

Cylinder moulds and distance plates

78-PV0250/2 

Cylinder mould 150 mm dia., special alloy steel hardened to 53-55 HRC, internally grinded. Complete with top and bottom plates.

78-PV0250/5 

Cylinder mould 100 mm dia., special alloy steel hardened to 53-55 HRC, internally grinded. Complete with top and bottom plates.

78-PV0250/10

Cylinder mould 150 mm dia., special alloy steel hardened to 53-55 HRC, internally grinded, with holes for cold mix compaction. Complete with top and bottom plates

78-PV0250/8

Cylinder mould 100 mm dia., special alloy steel hardened to 53-55 HRC, internally grinded, with holes for cold mix compaction. Complete with top and bottom plates

78-PV0250/3  

Distance plate, 150 mm dia., 50 mm high, for preparing short samples

78-PV0250/6  

Distance plate, 100 mm dia., 38 mm high, for preparing short samples

78-PV0250/4  

Accessories to compact 100 mm dia. specimens including 100 mm height calibration device


Integrated work top with extruder

78-PV2520/15  

Integrated work top with electromechanical specimen extruder. 230 V, 50-60 Hz, 1 ph

78-PV2520/15Z  

Integrated work top with electromechanical specimen extruder. 110 V, 60 Hz, 1 ph


Description 

The bench top with extruder fits the GYROCOMP perfectly resulting in an ergonomic solution that aids the operator. The Electromechanical 550 W motor with speed reducer produces a maximum load that is also suitable for cold mix specimens.

● Dimensions: 502x753x808(h) mm

● Weight approx.: 45 kg

78-PV0252/14  

Integrated work top with manual extruder


Air compressor

78-PV0250/7  

Low noise air compressor. 230 V, 50 Hz

78-PV0250/7Y  

Low noise air compressor. 220 V, 60 Hz

78-PV0250/7Z  

Low noise air compressor. 110 V, 60 Hz


Description

10 bar max. pressure, 130 l/min air delivery, 10 l cap., power rating 750 W, silent operation (less than 59 dB, ISO 3744, r=4 m).

● Overall dimensions (wxdxh): 370x410x650 mm

● Weight approx.: 27 kg


Internal Angle Measurement Apparatus ILS

78-PV0255


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