TY - JOUR
T1 - Multi-scale analysis of cement pastes with nanosilica addition
AU - Ma Guerrero Bustos, Ana
AU - Redondo, Juan José Gaitero
AU - Quiñones, Gloria Pérez Álvarez
AU - Elizalde, Sara Goñi
PY - 2014/10/1
Y1 - 2014/10/1
N2 - The effect of the addition of nanosilica on the properties of cement pastes after 28 d of hydration was studied in a multi-scale approach through X-ray diffraction, thermal analysis, nitrogen adsorption analysis, infrared spectroscopy, nuclear magnetic resonance (NMR) spectroscopy and compressive strength tests. The results showed an increase in strength resulting from the pozzolanic nature of the nanosilica, the reduction and refinement of the paste porosity and also the increase of the of calcium-silicate-hydrate gel polymerisation with the addition. Furthermore, NMR spectra suggested that the presence of nanosilica produces an inclusion of the Al3+ ion in the gel structure.
AB - The effect of the addition of nanosilica on the properties of cement pastes after 28 d of hydration was studied in a multi-scale approach through X-ray diffraction, thermal analysis, nitrogen adsorption analysis, infrared spectroscopy, nuclear magnetic resonance (NMR) spectroscopy and compressive strength tests. The results showed an increase in strength resulting from the pozzolanic nature of the nanosilica, the reduction and refinement of the paste porosity and also the increase of the of calcium-silicate-hydrate gel polymerisation with the addition. Furthermore, NMR spectra suggested that the presence of nanosilica produces an inclusion of the Al3+ ion in the gel structure.
UR - http://www.scopus.com/inward/record.url?scp=84912520713&partnerID=8YFLogxK
U2 - 10.1680/adcr.13.00023
DO - 10.1680/adcr.13.00023
M3 - Article
AN - SCOPUS:84912520713
SN - 0951-7197
VL - 26
SP - 271
EP - 280
JO - Advances in Cement Research
JF - Advances in Cement Research
IS - 5
ER -