These tests are a measure of the crushing properties of aggregate and use the same basic equipment. The ACV test requires a standard load of 400 kN to be applied over a period of 10 minutes while the TFV test measures the force required to produce a specified depth of plunger penetration.
|42-4580||Tamping Rod||info »|
|42-4300||150 mm Aggregate Crushing Value Apparatus||info »|
|42-4500||75 mm Aggregate Crushing Value Apparatus||info »|
The apparatus has been designed in a particularly heavy duty form, with specially hardened steel surfaces for minimum wear. The assembly is heavily plated to ensure corrosion resistance and forms a rigid frame around the quick-release trigger mechanism which ensures an effective free fall of the hammer when released. A built-in counter automatically indicates the number of blows delivered. The apparatus is supplied complete with cylindrical measure 75 mm diameter x 50 mm deep, and a steel tamping rod 16 mm diameter x 600 mm long.
|42-4005||Aggregate Impact Value Apparatus||info »|
• European and ASTM methods
• Revolution counter
• Safety cut-out
• Full width cover
The Los Angeles Machine comprises a heavy steel cylinder, rotated about its horizontal axis. The cylinder incorporates a removable internal shelf, as specified in the ASTM and EN test methods. The steel cylinder is manufactured from structural steel plate conforming to S275 of EN 10025:1993.
The filling aperture is provided with a cover and a safety stop button is prominently positioned. The machine is fitted with a revolution counter and steel tray for specimen unloading. Supplied without abrasive charges which should be ordered separately.
|42-5305/10||12 EN Abrasive Charges||info »|
|42-5310/01||Los Angeles Abrasion Machine with CE Safety Cabinet 220 - 240 V 50Hz||info »|
|42-5310/06||Los Angeles Abrasion Machine with CE Safety Cabinet W/ Microswitches. 220-240V 60Hz 1Ph.||info »|
|42-5315/01||Los Angeles Abrasion Machine 220- 240 V AC 50Hz||info »|
|42-5300/10||12 ASTM Abrasive Charges||info »|
The Pendulum Skid Resistance Tester was originally designed in the 1940s in the USA, and further developed in the 1960s at the TRL (Transport Research Laboratory) for the testing of road surfaces.
The device measures the frictional resistance between a rubber slider mounted on the end of a pendulum arm and the surface to be tested. This provides road engineers with a method of checking the resistance of wet and dry surfaces to slipping and skidding, both in the lab and insitu.
It operates by a pendulum rotating about a spindle which is attached to a vertical pillar. At the end of the tubular arm a head of known mass is fitted with a rubber slider. The pendulum is released from a horizontal position so that it strikes the sample surface at a constant speed. The distance travelled by the head after hitting the sample is determined by the friction of the sample surface.
|42-6000/12||3.00” Rubber Mounted TRL (55) Slider||info »|
|42-6000/13||3.00” Rubber Mounted Four S (96) Slider||info »|
|42-6200||Base Plate for Skid Resistance Tester for lab testing||info »|
|42-6000/11||1.25” Rubber Mounted PSV Slider||info »|
|42-6000/14||3.00” Rubber Mounted CEN Slider||info »|
|42-6000/10||Set of 3 Spreader Feet for Skid Resistance Tester for in-situ testing||info »|
|42-6000||Pendulum Skid Resistance Tester||info »|