Cyclic infiltration test chamber is the use of lifting devices, the test specimens, periodic soak to the salt-containing solution or seawater, and then exposed to a set atmospheric environment, or high-temperature baking, at the same time, the immersion of the water temperature is also affected by the changes in the air inside the box and the change, so that you can try to realistically reproduce the impact of the marine environment on the concrete, to help the user on the earlier discovery of the deficiencies in the concrete, and Improvement.