Journal ArticleDOI
The AFm phase in Portland cement
Reads0
Chats0
TLDR
In this article, a scheme of phase balances was proposed to calculate the mineralogical balances of a hydrated cement paste with greater accuracy than hitherto practicable, and experimentally-determined phase relationships were depicted at 25 deg. C.About:
This article is published in Cement and Concrete Research.The article was published on 2007-02-01. It has received 604 citations till now. The article focuses on the topics: AFm phase & Portlandite.read more
Citations
More filters
Journal ArticleDOI
NOx sequestration by calcium aluminate cementitious materials
TL;DR: In this article, the authors quantified NOx uptake efficiency and explored NOx binding mechanisms in calcium aluminate cementitious (CAC) materials and showed that the permanent NOx absorption in CAC could be largely attributed to the chemical binding of converted NOx within aluminum-bearing phases.
Journal ArticleDOI
Solidification/stabilization of flue gas desulfurization brine and coal fly ash for heavy metals and chloride immobilization: Effects of S/S conditions and zero-valent-iron pretreatment
TL;DR: Quantitative X-ray diffraction and scanning electron microscopy analyses strongly indicated the formation of Friedel's salt, Ca2Al(OH)6(Cl,OH)·2H2O, is critical in the retainment of heavy metals and chloride in FGD wastewater and chloride.
Journal ArticleDOI
Modification on the chloride binding capacity of cementitious materials by aluminum compound addition
TL;DR: In this paper, the effects of aluminum compound on the binding of admixed chloride in cementitious materials were investigated, and three commonly available aluminum compounds, aluminum oxide, aluminum hydroxide and colloidal nano-alumina were applied.
Journal ArticleDOI
Chloride ion transport performance of lining concrete under coupling the action of flowing groundwater and loading
TL;DR: In this paper, the authors investigated the chloride ion transport behavior of lining concrete under the coupling action of flowing groundwater and loading and found that the damage layer thickness and chloride ion concentration of the lining concrete increases with the increase of erosion age.
Journal ArticleDOI
Reactivity Assessment of Modified Ferro Silicate Slag by R 3 Method
TL;DR: In this article, the reactivity of supplementary cementitious materials (SCMs) and their contribution to the hydration mechanism were measured from measured heat release, bound water content, and CH consumption.
References
More filters
ReportDOI
User's guide to PHREEQC (Version 2)-a computer program for speciation, batch-reaction, one-dimensional transport, and inverse geochemical calculations
David L. Parkhurst,C.A.J. Appelo +1 more
TL;DR: PHREEQC as discussed by the authors is a C program written in the C programming language that is designed to perform a wide variety of low-temperature aqueous geochemical calculations.
Journal ArticleDOI
The Role of Calcium Carbonate in Cement Hydration
TL;DR: In this paper, it is shown by experiment and calculation that much, if not all, of this calcite is reactive and affects the distribution of lime, alumina and sulfate and thereby alters the mineralogy of hydrated cement pastes.
Journal ArticleDOI
Thermodynamic modelling of the hydration of Portland cement
TL;DR: In this paper, a thermodynamic model is developed and applied to calculate the composition of the pore solution and the hydrate assemblage during the hydration of an OPC.
Journal ArticleDOI
Nagra/PSI Chemical Thermodynamic Data Base 01/01
TL;DR: The Nagra/PSI Chemical Thermodynamic Data Base has been updated to support performance assessments of the planned Swiss repositories for radioactive waste as discussed by the authors, and more than 70% of the database contents have been revised.
Journal ArticleDOI
Thermodynamic investigation of the CaOAl2O3CaSO4H2O system at 25°C and the influence of Na2O
D. Damidot,F.P. Glasser +1 more
TL;DR: In this article, the CaOAl2O3CaSO4H2O system at 25°C has been investigated by calculations on the equilibrium solubility surfaces of AH3, C3AH6, CH, C 6 A S 3 H x, C 4 A S H x and gypsum.