Aggregate robustness tester refers to the aggregate after the saturated solution of sodium repeatedly soak dried, does not occur significantly damage or reduced strength performance. It is an important indicator to describe the aggregate of frost resistance. The instrument aggregate testing procedures comply with JTG E42-2005 Highway Engineering
ASTM C1372
(1) container: Double stainless steel heating thermostat container.
(2) coarse aggregate three-legged basket:
Basket outside diameter l00mm, 100mm, aperture 2.36mm
Basket outside diameter of 250mm high 250mm aperture 2.36mm stainless steel.
(3) The fine aggregate three-legged basket:
Basket outside diameter 70mm high 70mm aperture 0.15mm stainless steel
(4) Power supply voltage: 220V
(5) The temperature should remain range: 20 °C ~ 25 °C
(6) movements: 25
(7) The instrument of the above tests can be automatic heating thermostat, cycles, the holding time to achieve automatic control, in full display function
NC, with lifting the basket and stainless steel containers
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