Resistance to Fragmentation, Abrasion and Wear

Los Angeles abrasion machine model 48-D0500/G

Properties of a mix design vary according to the proportion of each component within the mix. Aggregates must be durable, clean, hard, resistant, free of chemicals and clearly suitable for mixing mechanical properties. Discover our specialized lab equipment designed to perform abrasion, impact, friction and crushing tests, using automated technologies such as automatic counters setting total number of revolutions or test duration.

Abrasion Testing Machine

Used for determining the resistance to abrasion/wear of natural stones.

Standards EN 1338 EN 1339 EN 1340 EN 14157 EN 1341 EN 1342 EN 12808-2 EN 14617-4

48-D0471
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This machine has been developed for determining the resistance to abrasion/wear of natural stones and concrete products. Easy to use, electronic control of the disc speed with auto shut-off of the machine at the selected number of revolutions. The abrasion disk wheel is 70 mm thick. Supplied complete with 5 kg of white corundum FEPA grit size 80 and calibration sample (Boulonnais marble). The machine can also be converted, by the conversion kit 48-D0471/K, for abrasion test conforming to EN 1344, 10545-6, 14617-4, 12808-2, UNE 127024. See accessories. The standard version conforms to EN 1338, 1339, 1342, 14157, 1340, 1341.
 
Main Features
  • Transparent protection cover
  • Control flow abrasive outlet according to the Standard
  • Supplied complete with sample calibration made in Boulonnaise marble, 115x115x50 mm
  • Digital counter unit

AAV Abrasion Machine

The test provides a measure of the resistance of aggregate to surface wear by abrasion.

Standards EN 1097-8

48-D0522
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The test provides a measure of the resistance of aggregate to surface wear by abrasion. The machine, formerly named “Dorry abrasion machine”, consists of a circular cast iron grinding lap 600 mm dia. which rotates in a horizontal plane at a speed of 28/30 r.p.m. The abrasive sand is fed across the surface of the specimen samples through a special funnel. The machine is supplied complete with two specimen moulds, two trays, two flat plates, weights and clamps.

Overall dimensions: 800x700x1100 mm

Weight approx.: 200 kg

Accelerated Polishing Machine (PSV)

The Polished Stone Value (PSV) of a material used as road surfacing is a measure of how rapidly it b

Standards EN 1097-8

Accelerated polishing machine
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The Polished Stone Value (PSV) of a material used as road surfacing is a measure of how rapidly it becomes polished under the action of vehicle tires. This machine is used to produce accelerate polishing, conforming to Standards, of stone chippings set onto the periphery of a special revolving wheel. After the cycle, involving two grades of emery powder, the polished specimens are tested on the skid tester (see links below) which gives the PSV, Polished Stone Value. The machine is electronically controlled by a keyboard with 4 row x 20 character LCD display. Complete with emergency stop button. The machine is supplied complete with road wheel, side plate, rubber rings, two tired wheels, drive belt, abrasive feed mechanism, corn emery, flour emery, set of one specimen mould and one mould plate.
 
Main Features
  • Fully conforming to EN 1097-8
  • Advanced digital interface for programming test steps and pauses
  • Independent control of the two feeders
  • Digital control of speed rotation
  • Full protection of all the moving part area with safety switch
  • Removable water tank, easy refill

Bohme Abrasion Wheel Tester

Used for testing of: natural stones, concrete paving blocks, flags, kerbs, screed materials...

Standards EN 1338 EN 1339 EN 1340 EN 14157 EN 13892-3 EN 13748 DIN 52108

Bohme abrasion machine 48-D5272
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The disc abrader conforming to Böhme method consists of a rotating wheel made of cast iron, 750 mm dia., with a defined test track to receive the abrasive material (white corundum sand) and a no-vibration specimen holder with a two arms lever loading device. The test speciment is clamped with an holder and submitted to a test force of 294 +/-3 N. After the abrasive is strew on the disc, the disc starts to rotate with a constant speed for a certain number of cycles (according to Standards). At the end of the test the abrasion effect is measured as the loss in specimen thickness or volume. This machine is used for testing of: natural stones (EN 14157) concrete paving blocks (EN 1338), flags (EN 1339) and kerbs (EN 1340) screed materials (EN 13892-3) terrazzo tiles (EN 13748-2) (Testing specimens in wet or water-saturated conditions is not feasible). The machine is equipped with a display control panel that allows the setting of speed and number of cycles. Once the machine is started, it will automatically stop at the end of the set number of cycles programmed on the controls panel. White carborundum abrasive sand and measuring device of sample thickness reduction have to be ordered separately. The measuring device, basically a 0.01mm resolution dial gauge mounted on a reference base, allows to measure the sample thickness in 9 points as defined as alternative abrasion measurement method in EN 13892-3 and DIN 52108. Volumetric method is valid for all the standards.
Main Features
  • Easy setting of test speed and number of cycles;
  • fast sequence selection option;
  • counter and test status always displayed;
  • simple use;
  • compact design;
  • memory option;
  • emergency shut off button included.

Crushing Resistance of Lightweight Aggregate Apparatus

Steel cylinder and piston. Two versions available: 113 and 76 mm internal dia.

Standards BS 812:110 EN 13055

48-D0512
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Used to determine the crushing resistance of lightweight aggregates. Consisting, basically, of a steel cylinder and piston.
Two versions available: Procedure 1: apparatus with cylinder int. dia. 113 mm
Procedure 2: apparatus with cylinder int. dia. 76 mm
Weight approx.: 15 kg (48-D0512)
7 kg (48-D0512/A)

Crushing Value Apparatus (ACV)

Two versions available: 150 (standard) and 75 mm diameter.. 57,8 HRC both models.

Standards BS 812:110

48-D0510, 48-D0511
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The aggregate crushing value (ACV) provides relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. Two versions available: 150 (standard) and 75 mm dia. The apparatus comprehend cylinder, plunger, base plate, tamping rod and measure. Cylinder, plunger and base plate are made from special alloy steel, hardened to 650 HV (57,8 HRC), and protected against corrosion.

Weight approx.: 16.5 kg (48-D0510) 3.5 kg (48-D0511)

Deval Abrasion Test Machine

A rotating frame to support two steel cylinders complete with covers and locking device.

Standards NF P18-577

Deval abrasion machine 48-D0523/G
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Used for testing the abrasion resistance of aggregates. The machine consists of a rotating frame to support two steel cylinders complete with covers and locking device. The rotating frame is driven by a motor speed reducer and an automatic counter is included to preset the required number of revolutions.

Rotation speed: 33 r.p.m.

Power: 736 W Overall dimensions: 1500x500x700 mm

Weight approx.: 190 kg
Main Features
  • High resolution graphical display 128×80 pixels and 6 keys membrane keyboard
  • 8 languages can be set: Italian, English, French, Spanish, Polish, Portuguese, Romanian and Cesky
  • Double test procedure: it is possible to set the target revolutions / drops or the total working time

Hammer Mill

This is one of the apparatus required to obtain particles that pass through 300 µm sieve.

Standards ASTM C289

48-D0535/A
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The hammer mill is used to reduce the sample size, previously crushed to 5 mm size with the Laboratory Crusher (see link other producs below), in order to perform various tests as, for instance, the chemical properties of aggregates. The grinding operation is obtained by the combination of three efforts: impact, shear and rebound. After entering the grinding chamber through the hopper, the material reaches the required fineness down to 1 mm and through the filtering hoses arrives to the collector. The machine is supplied complete with screens of 3, 2 and 1 mm opening. The material passing to the 1 mm screen goes down practically to powder. This is one of the apparatus required to obtain particles that pass through 300 µm sieve conforming to ASTM C289. See also Laboratory Crusher and Jar Mills in links to other products below.

Impact Testing Machine

Used to determine the aggregate impact value (AIV) which provides a relative measure of the resistance

Standard NF P18-574 BS 812-112

Impact testing machine 48-D0515/A
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Used to determine the aggregate impact value (AIV) which provides a relative measure of the resistance of an aggregate to sudden shock or impact. The machine is robustly designed , made from steel protected against corrosion. Fit with a counter to check the number of blows delivered to the sample. Supplied complete with two cylindrical measures (to BS and NF) and tamping rod.

Overall dimensions: 444x300x879 mm
Weight approx.: 58kg

Jar Mills

Jar mill for crushing aggregate samples from 1-5 mm down to approx. 300 microns.

Jar mill 0.3 and 1 l capacity, model 48-D0544
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Designed for milling aggregate samples to reduce particle sizes down from 1-5 mm to pass through a 300 µm approx sieve (depending on hardness of the material). The machine is fitted within a noise reduction cabinet with a safety switch for safe operation conforming to CE directives and with a 0-99 minute electronic timer.
Two version are available: 48-D0544: mill capacity 0.3 or 1 l. For this machine the jars are not included and have to be ordered separately.
See accessories. 48-D0544/A: mill capacity 1.5 l.
Jar and gringing load included. Spare grinding loads suitable for all jars version are available. See accessories.
This is one of the apparatus required to obtain particles that pass through 300 µm sieve conforming to ASTM C289. See also Laboratory Crusher and Hammer Mill in links to other products below.

Laboratory Crusher

Used to crush aggregates, core samples and similar materials when a reduction in sample size..

Standards ASTM C289

Jaw laboratory crusher 48-D0530/A
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Used to crush aggregates, core samples and similar materials when a reduction in sample size is necessary. The crusher has a jaw opening of 100×60 mm and can produce from 100 to 400 kg of material per hour. The movement of the jaws can be adjusted from 2 to 18 mm. The crushed sample can be further reduced using the hammer-mill for laboratory. (See related products) The crusher is housed in a protection case conforming to CE requirement and supplied with a separate control panel.
This is one of the apparatus required to obtain particles that pass through 300 µm sieve, starting from aggregates over 5 mm, conforming to ASTM C289. See also Hammer Mill and Jar Mills in links to other products below.

Los Angeles Abrasion Machine

The test covers the procedure for testing coarse aggregates for resistance to abrasion.

Standards EN 12697-17, EN 12697-43, EN 1097-2, ASTM C131

Los Angeles abrasion machine model 48-D0500/G
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The test covers the procedure for testing coarse aggregates for resistance to abrasion. The machine consists of a rolled steel drum having an inside dia. of 711 mm and internal length 508 mm. The drum is rotated by a speed reducer driven by an electric motor at a speed of between 31 and 33 r.p.m. The machine is equipped with an automatic counter, which can be preset to the required number of revolutions of the drum or the total working time. The unit is supplied without the abrasive charge, which has to be ordered separately depending on the standard in use (see accessories). The machine is supplied without the safety cabinet and it can be upgraded with: CE compliant safety cabinet with door opening switch Noise reduction and CE compliant safety cabinet with door opening switch For more info please refer to accessories and to related product below.
Main Features
  • High stiffness welded steel frame
  • High resolution graphical display 128×80 pixels and 6 keys membrane keyboard
  • 8 languages can be set: Italian, English, French, Spanish, Polish, Portuguese, Romanian and Cesky
  • Double test procedure: it is possible to set the target revolutions / drops or the total working time
  • The machine can be mounted inside a noise reduction and CE compliant safety cabinet with door opening switch

Micro-Deval Testing Machine

The Micro-Deval testing machine is used to determine aggregates' resistance to wear.

Micro-Deval testing machine model 48-D5242/A with base accessory 48-D5242/A1 and testing drums
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The Micro-Deval testing machine is used to determine aggregates’ resistance to wear. It consists of a motor driven actuator (including inverter) which transmits the rotation directly to the jars. Each jar is built with an attachment that transfers the rotation to the proximal jar. The direct application of rotation forces ensures strict compliance to the rotating speed prescribed by the Standards. The integrated automatic counter can either be preset to a total number of revolutions or maximum working time. Totally safe, all moving parts are enclosed in a CE-conforming soundproof safety cabinet that automatically stops when the lid is open. Compact and ergonomic, the Micro-Deval will maximize your laboratory bench space as it can either be positioned on a working table or on its own optional dedicated base. Cylinders and steel spheres complying with either EN or ASTM Standards must be purchased separately. Please refer to the accessories section for more information.

Nordic Micro-Deval Testing Machine

Is used to determine aggregates resistance to wear by abrasion from studded tires

Standards EN 1097-9

Nordic Micro-Deval testing machine model 48-D5242/NT complete with steel base 48-D5242/A1
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The Micro-Deval testing machine, Nordic version, is used to determine aggregates’ resistance to wear by abrasion from studded tires (Nordic Test to EN 1097-9). It consists of a motor driven actuator (including inverter) which transmits the rotation directly to the jars. Each jar is built with an attachment that transfers the rotation to the proximal jar. The direct application of rotation forces ensures strict compliance to the rotating speed prescribed by the Standards. The integrated automatic counter can either be pre-set to a total number of revolutions or maximum working time. Totally safe, all moving parts are enclosed in a CE-conforming soundproof safety cabinet that automatically stops when the lid is open. Compact and ergonomic, the Micro-Deval will maximize your laboratory’s space as it can either be positioned on a laboratory bench or on its own optional dedicated base. Supplied without cylinders and steel spheres, these can be purchased separately and adapted to Nordic Test to EN 1097-9 Standard. The machine can be used with up to two stainless steel cylinders model 48-D5242/EN3, featuring an internal diameter of 206.5 mm and internal height of 355 mm plus three ribs 333 mm long. Please refer to the accessories section for more information.

Skid Resistance and Friction Tester

Used for the measurement of surface friction properties, the apparatus is suitable for...

Standards EN 13036-4 EN 1097-8 ASTM E303 EN 1338 EN 1341 EN 1342 AASTHO T278

Skid resistance tester 48-PV0190/ASTM
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Used to determine the aggregate impact value (AIV) which provides a relative measure of the resistance of an aggregate to sudden shock or impact. The machine is robustly designed , made from steel protected against corrosion. Fit with a counter to check the number of blows delivered to the sample. Supplied complete with two cylindrical measures (to BS and NF) and tamping rod.

Overall dimensions: 444x300x879 mm
Weight approx.: 58kg

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