TY - GEN
T1 - Models for predicting free water and specific heat of pastes containing ground granulated blast furnace slag
AU - Dabarera, Arosha
AU - Saengsoy, Warangkana
AU - Mori, Kanako
AU - Tangtermsirikul, Somnuk
N1 - Publisher Copyright:
© 2016 Trans Tech Publications, Switzerland.
PY - 2016
Y1 - 2016
N2 - This paper aims to investigate early age behavior in terms of free water content and specific heat for hardening cement paste incorporating Ground Granulated Blast Furnace Slag. Experiments were conducted to obtain free water and specific heat of slag-cement pastes by varying water to binder ratios and slag replacement levels. Free water to total binder ratios for pastes with w/b of 0. 40 and slag replacements of 45% and 75% are 0. 23 and 0. 25 at 3 days and 0. 17 and 0. 19 at 28 days, respectively. Specific heat values for similar mixtures are 0. 26 and 0. 30 at 3 days and 0. 23 and 0. 25 at 28 days. Results showed that specific heat decreases as the amount of free water decreases. The slag substitution resulted in high specific heat and free water at early age but tends to decrease in long term due to enhanced reaction kinetics. Models were proposed to compute free water and specific heat by modifying existing models. The model simulations can be used to predict the measured values accurately.
AB - This paper aims to investigate early age behavior in terms of free water content and specific heat for hardening cement paste incorporating Ground Granulated Blast Furnace Slag. Experiments were conducted to obtain free water and specific heat of slag-cement pastes by varying water to binder ratios and slag replacement levels. Free water to total binder ratios for pastes with w/b of 0. 40 and slag replacements of 45% and 75% are 0. 23 and 0. 25 at 3 days and 0. 17 and 0. 19 at 28 days, respectively. Specific heat values for similar mixtures are 0. 26 and 0. 30 at 3 days and 0. 23 and 0. 25 at 28 days. Results showed that specific heat decreases as the amount of free water decreases. The slag substitution resulted in high specific heat and free water at early age but tends to decrease in long term due to enhanced reaction kinetics. Models were proposed to compute free water and specific heat by modifying existing models. The model simulations can be used to predict the measured values accurately.
KW - Free water
KW - Slag
KW - Specific heat
UR - http://www.scopus.com/inward/record.url?scp=84978858091&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.860.135
DO - 10.4028/www.scientific.net/MSF.860.135
M3 - Conference contribution
AN - SCOPUS:84978858091
SN - 9783038357308
T3 - Materials Science Forum
SP - 135
EP - 139
BT - Composite Materials and Material Engineering
A2 - Delaunay, J.J.
A2 - Zhou, J.H.
A2 - Lu, L.
PB - TRANS TECH PUBLICATIONS LTD
T2 - International Conference on Composite Materials and Material Engineering, 2016
Y2 - 9 March 2011 through 11 March 2011
ER -