TY - GEN
T1 - Effect of temperature on the hydration of activated granulated blast furnace slag
AU - Rocha-Rangel, Enrique
AU - Martínez Alvarado, M. Juana
AU - Díaz-Cruz, Manuela
PY - 2012
Y1 - 2012
N2 - In this work it was carried out a study about the hydration products formed by the activation with NaOH of granulated blast furnace slag at different temperatures (25, 50, 100 and 150°C), as a function of time (1, 3, 7, 14 and 28 days). The progress of hydration reactions was assessed by X-ray diffraction and infrared spectroscopy. From these analyses, they were found that the main product of hydration was the calcium silicate hydrate gel (CSH-gel), whose formation is favored with the increments of the temperature of hydration. Also, the hydrotalcite compound was formed in significant amounts for the different studied conditions. At high temperatures (100 and 150°C) they were formed in small amounts the compounds tobermorite and ettringite. Monosulphoaluminate and brucite phases were formed from 50°C. Results show the presence of calcite due to the absorption of atmospheric CO2 by the slag. High amount of MgO in the slag provokes the formation of dolomite at high temperatures.
AB - In this work it was carried out a study about the hydration products formed by the activation with NaOH of granulated blast furnace slag at different temperatures (25, 50, 100 and 150°C), as a function of time (1, 3, 7, 14 and 28 days). The progress of hydration reactions was assessed by X-ray diffraction and infrared spectroscopy. From these analyses, they were found that the main product of hydration was the calcium silicate hydrate gel (CSH-gel), whose formation is favored with the increments of the temperature of hydration. Also, the hydrotalcite compound was formed in significant amounts for the different studied conditions. At high temperatures (100 and 150°C) they were formed in small amounts the compounds tobermorite and ettringite. Monosulphoaluminate and brucite phases were formed from 50°C. Results show the presence of calcite due to the absorption of atmospheric CO2 by the slag. High amount of MgO in the slag provokes the formation of dolomite at high temperatures.
UR - http://www.scopus.com/inward/record.url?scp=84867910682&partnerID=8YFLogxK
U2 - 10.1002/9781118491867.ch4
DO - 10.1002/9781118491867.ch4
M3 - Contribución a la conferencia
SN - 9781118273364
T3 - Ceramic Transactions
SP - 29
EP - 35
BT - Processing and Properties of Advanced Ceramics and Composites IV
PB - American Ceramic Society
T2 - Int. Symposia on Innovative Processing and Synthesis of Ceramics, Glasses and Composites, Advances in Ceramic Matrix Composites and Microwave Processing of Materials, Held During the Materials Sci. and Technol. 2011 Conf. and Exhibition, MS and T'11
Y2 - 16 October 2011 through 20 October 2011
ER -