Taiwan Provincial Standard of the People's Republic of China
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CNS 1175-1986
Scope
This standard specifies the test method for the Portland water cement content of hardened concrete. However, if the concrete contains certain aggregates or mixed aggregates or admixtures, significant amounts of leached calcium (CaO) and leached silicon will be released under the test conditions. (SiO2), this test method cannot be applied.
CNS 1175-1986 history
1986CNS 1175-1986 Method of Test for Cement Content of Hardened Portland Cement Concrete