pH value test and analysis
The changes in the pH values with age for Y, GZ and PS tested by the solid–liquid extraction method and pure slurry soaking method, respectively, are shown in Fig. 6a–c.
The pH values of the porous ecological concrete specimens covered by the same film type tested by the solid–liquid extraction method and pure slurry soaking method at different ages: (a) Y; (b) PS; (c) GZ.
The pH value changes of Y, GZ and PS at the ages of 3 days, 7 days, 14 days, 28 days and 56 days, which are tested by the solid–liquid extraction method and pure slurry soaking…
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