I would highly appreciate if anybody could help me in identifying the endothermic peaks of the following samples at 7 days of hydration. TGA was undertaken in nitrogen environment.
1) 3M1_7: Cement + Fly ash (Endothermic peaks between 270 and 420 degree)
2) 3M2_7: Cement + Fly ash + 5% nano silica (Endothermic peak at ~375 degree)
3) 3M3_7: Cement + Fly ash + 10% nano silica (Endothermic peak at ~390 degree)
Rajeev Roychand
Thanks Ariadne,
The peak shown in the paper you suggested is that of Ca(OH)2. In my mix designs all the Ca(OH)2 gets consumed by nano silica and the fly ash present in the mix. Even the XRD doesn't show any trace of Ca(OH)2
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