Table 3: The degree of hydration of CFB fly ash blended cement pastes.
Sample |
Curing Time (day) |
29Si NMR spectra |
Total |
Degree of Hydration (%) |
Q0
|
Q1
|
Q2
|
Q3
|
OPC |
28 |
363 |
326 |
253 |
59 |
1000 |
63.7 |
OPC |
60 |
315 |
382 |
265 |
38 |
1000 |
68.5 |
OPC |
90 |
295 |
374 |
287 |
44 |
1000 |
70.5 |
10% |
28 |
352 |
339 |
259 |
50 |
1000 |
64.8 |
10% |
60 |
326 |
376 |
274 |
24 |
1000 |
67.4 |
10% |
90 |
253 |
381 |
322 |
44 |
1000 |
74.7 |
20% |
28 |
408 |
313 |
235 |
44 |
1000 |
59.2 |
20% |
60 |
316 |
362 |
288 |
34 |
1000 |
68.4 |
20% |
90 |
307 |
349 |
305 |
40 |
1000 |
69.3 |
30% |
28 |
393 |
314 |
238 |
55 |
1000 |
60.7 |
30% |
60 |
310 |
351 |
298 |
41 |
1000 |
69.0 |
30% |
90 |
307 |
345 |
306 |
41 |
1000 |
69.3 |
40% |
28 |
396 |
315 |
234 |
55 |
1000 |
60.4 |
40% |
60 |
316 |
351 |
283 |
50 |
1000 |
68.4 |
40% |
90 |
307 |
325 |
308 |
60 |
1000 |
69.3 |