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Journal ArticleDOI

Influence of limestone on the hydration of ternary slag cements

TL;DR: The hydration kinetics, microstructure and pore solution composition of ternary slag-limestone cement have been investigated in this paper, where commercial CEM I 52.5 R was blended with slag and limestone; maintaining a clinker to SCM ratio of 50:50 with up to 20% slag replaced by limestone.
About: This article is published in Cement and Concrete Research.The article was published on 2017-10-01. It has received 208 citations till now. The article focuses on the topics: Clinker (cement) & Ground granulated blast-furnace slag.
Citations
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Journal ArticleDOI
TL;DR: In this paper, a review of emerging supplementary cementitious materials (SCM) sources is presented, along with new developments in characterizing and qualifying SCMs for use and improved knowledge of SCM on long-term concrete performance and durability.

386 citations


Cites background from "Influence of limestone on the hydra..."

  • ...blast furnace slag and limestone, and recent studies have been focused on determining factors 727 influencing their phase assemblage evolution [181] and their impact in performance of these materials 728 [182]....

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Journal ArticleDOI
TL;DR: In this paper, the authors review recent progress in the description and understanding of the reactivity of SCMs and their impact on Portland clinker hydration, as well as recent work studying the impact of common SCMs on hydration and microstructure of blended cements.

335 citations

Journal ArticleDOI
TL;DR: In this paper, a large amount of studies are devoted to seeking synergies between FA, HCFA, granulated blast furnace slag (GBFS), and limestone, focusing on durability characteristics of composites cement containing FA and HCFA.

230 citations

Journal ArticleDOI
TL;DR: In this paper, the incorporation of uncarbonated and carbonated hardened cement paste powder into cement affects the hydration and microstructure development of cement, which is classified as a corrosive hazardous material.

144 citations

Journal ArticleDOI
TL;DR: In this article, the effect of binder composition on hydrate assemblage in modern Portland composite cements and its effect on durability is investigated using thermodynamic models and modelling approaches.

105 citations

References
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Journal ArticleDOI
Ellis Gartner1
TL;DR: In this paper, the authors discuss the practicality of replacing portland cements with alternative hydraulic cements that could result in lower total CO 2 emissions per unit volume of concrete of equivalent performance.

1,521 citations


"Influence of limestone on the hydra..." refers background in this paper

  • ...Therefore, since demand for these cement is growing 50 [16, 17], understanding the reaction mechanisms of composite cement containing slag 51 and limestone is of high importance....

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Journal ArticleDOI
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.

1,437 citations

Journal ArticleDOI
TL;DR: In this paper, the influence of the presence of limestone on the hydration of Portland cement was investigated, and it was shown that the stabilisation of monocarbonate in the absence of limestone indirectly stabilised ettringite, leading to a corresponding increase of the total volume of the hydrate phase and a decrease of porosity.

1,089 citations


"Influence of limestone on the hydra..." refers background or result in this paper

  • ...While the concentrations of calcium 340 and sulphates fell with hydration time, the pH increased, consistent with previously 341 reported data [11, 32]....

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  • ...44 In composite cement, the alumina content may be higher than in the neat cement 45 paste leading to increased formation of AFm phases [9-12]....

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  • ...This results in the stabilisation of 43 ettringite [9-11], thus reducing porosity and increasing compressive strength....

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  • ...A similar 542 lowering of Al concentrations in the presence of limestone has been previously 543 observed for binary Portland cement-limestone binders [11, 14]....

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Journal ArticleDOI
TL;DR: In this article, the effect of minor additions of limestone powder on the properties of fly ash blended cements was investigated using isothermal calorimetry, thermogravimetry (TGA), X-ray diffraction (XRD), scanning electron microscopy (SEM) techniques, and pore solution analysis.

849 citations

Journal ArticleDOI
TL;DR: In this article, the phase assemblage and pore solution of Portland cements hydrated between 0-60°C were modeled as a function of time and temperature, and a good correlation between calculated porosity and measured compressive strength was observed.

785 citations


"Influence of limestone on the hydra..." refers methods in this paper

  • ...Thermodynamic data was taken from the PSI– GEMS database [30] and [31] 226 along with cement specific data [32-34]....

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