用于在规定的试筒内制作试件后，对各种土和路面基层、底层材料进行承载比试验。混合料的粒径，应控制在内，不超过40mm。

附件含CBR压头:1只（直径50mm） ； CBR筒:9只（直径152mm）；套环、底座螺栓:1套 ；垫块:1个（直径150mm）；透水板:9套多孔底板:9套；百分表架:9套 ；半圆加载板（配重块）:72件；百分表:9块

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