Journal ArticleDOI
Early hydration of tricalcium silicate II. The induction period
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In this article, the initial hydration of C3S was found to be stimulated by adding to the paste pre-hydrated C 3S and by lowering the Ca++ concentration of the liquid phase with oxalic acid.About:
This article is published in Cement and Concrete Research.The article was published on 1979-05-01. It has received 68 citations till now. The article focuses on the topics: Induction period & Oxalic acid.read more
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Mechanisms of cement hydration
Jeffrey W. Bullard,Hamlin M. Jennings,Richard A. Livingston,André Nonat,George W. Scherer,Jeffrey Schweitzer,Karen Scrivener,Jeffrey J. Thomas +7 more
TL;DR: The current state of knowledge of cement hydration mechanisms is reviewed, including the origin of the period of slow reaction in alite and cement, the nature of the acceleration period, the role of calcium sulfate in modifying the reaction rate of tricalcium aluminate, the interactions of silicates and aluminates, and the kinetics of the deceleration period as mentioned in this paper.
Journal ArticleDOI
Dissolution theory applied to the induction period in alite hydration
TL;DR: The early hydration of alite has been a subject of controversy for many decades and several theories have been proposed, principally the formation of a protective phase inhibiting dissolution or delayed nucleation and growth, but none have successfully taken into account all the experimental data available as discussed by the authors.
Journal ArticleDOI
Characterization and quantification of self-healing behaviors of microcracks due to further hydration in cement paste
TL;DR: In this paper, the physicochemical process and the potential of self-healing due to further hydration are characterized and quantified, and the formation of healing products as a function of time was quantified as well.
Journal ArticleDOI
cemff: A force field database for cementitious materials including validations, applications and opportunities
Ratan K. Mishra,Aslam Kunhi Mohamed,David Geissbühler,Hegoi Manzano,Tariq Jamil,Rouzbeh Shahsavari,Andrey G. Kalinichev,Andrey G. Kalinichev,Sandra Galmarini,Lei Tao,Hendrik Heinz,Roland J.-M. Pellenq,Adri C. T. van Duin,Stephen C. Parker,Robert J. Flatt,Paul Bowen +15 more
TL;DR: In this article, the authors present a review of atomistic force field parameterizations for molecular simulations of cementitious minerals, such as tricalcium silicate (C 3 S), portlandite (CH), tobermorites (model C-S-H).
References
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Book
The chemistry of cement and concrete
TL;DR: The chemistry of cement and concrete as discussed by the authors, The chemistry of concrete and its properties, and the relationship between concrete and cement, is a classic example of such an approach. But it is not suitable for outdoor use.
Journal ArticleDOI
Influence of silica on the hydration of 3 CaO,SiO2
H. N. Stein,J. M. Stevels +1 more
TL;DR: Amorphous silica accelerates the hydration rate of 3CaO,SiO2 in Portland cement pastes by lowering calcium and hydroxyl-ion concentrations during the first minutes of hydration.
Journal ArticleDOI
Early Hydration of Tricalcium Silicate
TL;DR: In this paper, the authors studied the hydration of tricalcium silicate (C3S) in preacceleration stages and found that C3S particles carry a positive charge during the early stages of hydration.
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Compositions of Solutions in Contact with Hydrating Tricalcium Silicate Pastes
TL;DR: In this article, the ionic product for calcium hydroxide (CH) was calculated as a function of time and correlated with calorimetric measurements and crystal growth data.
Journal ArticleDOI
Kinetics of the Hydration of Tricalcium Silicate
Kinjiro Fujii,W. Kondo +1 more
TL;DR: In this paper, the hydration of tricalcium silicate was followed at a water/C3S ratio of 0.7 between 5° and 50°C by determining free lime and combined water.