Page 332 - Handbook of Thermal Analysis of Construction Materials

Section 4.0 - Slags 309

Table 5. Reaction Products of Slag Treated with Various Activators

Activator Crystalline Phases Comments

NaOH, Na CO , C-S-H, C AH , Some Si is incorporated
2
3
13
4
Na silicate C AH , Mg(OH) in C AH ; C/S ratio
2 8 2 4 13
of C-S-H is less than
that in cement paste
Ca(OH) C-S-H, C AH C AH is absent
2 4 13 2 8
Gypsum, Hemihydrate, C-S-H, AFt, SO in slag may act as
4
Phosphogypsum Al(OH) 3 an internal activator

Cement C-S-H, AFm, AFt, Any one paste may
Hydrogarnet, not have all these
Hydrotalcite-like phases
phase, Vicatite
(C S H )
3 2
3

Figure 12. Effect of glass content on compressive strength in slag cements.