Example 2

In Example 2, the potassium water glass used for references M1 and M2 was co-ground with the blast furnace slag used for references M1 and M2 for two minutes using a planetary ball mill. The obtained co-ground powder was then used in the formulations M1a and M2a shown in Table 2.

TABLE 2
(all ingredient units are given in grams)
IngredientsM1aM2a
Metakaolin9090
Quartz sand622639
Sodium water glass (modulus 1.0)236
Co-ground potassium water glass265
(modulus 3.6) including blast furnace
slag
Co-ground potassium water glass265
(modulus 2.4) including blast furnace
slag
Water250200

The resistances are shown in Table 3. Particularly, the resistances in NaOH significantly increased from 11% (M1) to 90% (M1a), as well as from 13% (M2) to 96% (M2a).

TABLE 3
MediumM1M1aM2M2a
1M HCl88%88%96%96%
1M NaOH11%90%13%96%
Water23%95%42%98%

Free full text: Click here