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Standard: BS 1881-208 & 1881:5
The main advantage of ISAT method is that it is fast, simple and nondestructive, and generally poured concrete surface can be used;If good sealing can be achieved, it can also be used in the case of poor surfaces such as aggregate exposure.In addition to the difficulty of sealing, the test results may be greatly affected by the wet content of concrete.
The ISAT test method is used to evaluate the permeability of single crystal water on the concrete surface.
Its numerical results relate to the finished quality of concrete and the surface permeability of concrete under natural conditions.
It also provides a reference for the permeability of concrete under high water pressure.
