Abstract
Experiments were made to study the permeability of concrete used for low temperature liquid storage PS concrete tanks.
This report consists of three parts. The first covers the airtightness of concrete under normal temperatures, the second does the airtightness of concrete under low temperatures and the third does the airtightness of concrete in a model tank.
According to the test results, it was found that the coefficient of permeability of concrete having a design strength of more than 400kgf/cm2 under low temperatures is in the order of same or below under normal temperatures. Almost the same can be said of concrete subjected to freezing and thawing. The coefficient of permeability of the model tank, which contains several construction joints was between 1.0×10-7 and 1.0×10-8 cm/s, which is greater than completely monolithic concrete by two orders.
