Hydration process of cement in the presence of a cellulosic additive. A calorimetric investigation
Article Abstract:
The effect of four additives constituting a typical Portland cement on the hydration kinetics is evaluated by means of differential scanning calorimetry (DSC) while the hydration products are studied. The additive inhibits the growth of stable cubic hydrated phases (C3AH6), with the advantage of the metastable hexagonal phases being formed in the earliest minutes of hydration.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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Near-infrared spectroscopy investigation of the water confined in tricalcium silicate pastes
Article Abstract:
Near-infrared (NIR) spectroscopy is used to investigate the evolution of the vibrational spectrum of water entrapped in a tricalcium in a tricalcium silicate paste. The NIR analysis of water in the confined C-S-H growing matrix during the setting process has provided reliable semiquantitative information on the water confined in the [C.sub.3]S paste.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Hydration kinetics of tri-calcium silicate in the presence of superplasticizers
Article Abstract:
The experiment is conducted using the Differential Scanning Calorimetry (DSC) to study the hydration kinetics of tri-calcium silicate (C3S) in the presence of superplasticizers. The results show that the activation energy of the nucleation and growth stage is doubled in the presence of superplasticizers, which are the most effective additives.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2003
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