ABSTRACT
In order to understand the different affection of pendulum speed and its mass to the impact toughness and the affection of water content, a series of notched Charpy bar impact tests were conducted on remolded frozen soil with different pendulum mass at different temperature. The test results show that affection of pendulum speed seems larger than that of pendulum mass, and affection of temperature will become greater with the increment of pendulum impulse, especially when impulse is more than 34Ns. Impact toughness reaches its peak by the water content 24.7%. The coarse degree of fracture surface was greatly affected by the water content. When it near to liquid limit the fracture surface was clearly divided into two different areas.
