Influence of finely ground limestone on cement hydration

Péra, J.; Husson, Sophie; Guilhot, Bernard

doi:10.1016/s0958-9465(98)00020-1

Cited by 357 publications

(146 citation statements)

References 3 publications

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“…The effect of LP on the hydration of cement has been intensively investigated, ranging from the filler effect to the chemical involvement in cement hydration: (1) inert filler acting as nuclei sites; (2) accelerating the hydration of C 3 S [13,14] and (3) reacting with C 3 A forming calcium carboaluminates [14][15][16]. However, the function of LP on the reaction of alkali activated materials has not been systematically studied yet.…”

Section: Introductionmentioning

confidence: 99%

Assessing the chemical involvement of limestone powder in sodium carbonate activated slag

Yuan

Brouwers

2017

Mater Struct

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This study aims to investigate the effect of limestone powder (LP) on the reaction of sodium carbonate activated slag. The results show that the incorporated LP up to 30% improves the strength development, especially at advanced curing ages. A slightly accelerated reaction is observed for samples containing low amount of LP (B5%), while mixture with 10% LP shows the optimized results with respect to the heat release and strength development. Chemical effect of incorporating LP is observed at high replacement levels (C15%), indicated by the formation of a new phase, natron (Na 2 CO 3 Á10H 2 O). Besides, relatively high contents of hydrotalcite-like phases are generated when increasing the dosage of limestone powder. The chemical changes, including the volume changes of generating natron and the transformation of natron to calcite, is potentially responsible for the enhanced mechanical properties.

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Section: Introductionmentioning

confidence: 99%

Assessing the chemical involvement of limestone powder in sodium carbonate activated slag

Yuan

Brouwers

2017

Mater Struct

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“…11 In PLC, there is also an interaction between tricalcium silicate (C 3 S) and calcium carbonate (CaCO 3 ); the latter accelerates the hydration of C 3 S and modifies the Ca/Si ratio of calcium silicate hydrate gel (C-S-H). 12 It is worth noting that limestone does not show pozzolanic properties and, consequently, does not produce C-S-H. 13 It has been suggested that when large quantities of carbonate are present, some CaCO 3 can be incorporated into C-S-H to form calcium silicocarbonate hydrates. 5,14 The production of portlandite (CH) seems to be enhanced at early ages partly due to dissolution of limestone and also due to limestone's ability to act as nucleation sites.…”

Section: Introductionmentioning

confidence: 99%

Influence of Various Soluble Carbonates on the Hydration of Portland Cement studied by X-ray Diffraction

Medvescek¹,

Kaučič²,

Meden³

2017

ACSi

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The effect of limestone on the hydration of Portland cement has been studied by many researchers. However, a possible influence of adding more soluble carbonates was not explained. Therefore we executed a qualitative and quantitative research on the influence of slightly soluble (CaCO 3 , MgCO 3 , dolomite), medium soluble (Li 2 CO 3 ) and highly soluble (K 2 CO 3 and KHCO 3 ) carbonates on the hydration. Blending of Portland cement with differently soluble carbonates was found to influence the hydrate assemblage of the hydrated cement. With the help of the Rietveld analysis, the study indicated that the amount of reacted carbonate in cement hydration at a 15% addition of slightly or medium soluble carbonates does not exceed 5% and is not affected by their solubility; at a 15% addition of the highly soluble carbonate K 2 CO 3 the amount of reacted carbonate was around 6%. An increase in temperature (25 to 40 °C) gradually affects the rate of hydration and the quantity of stable phase assemblage.

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“…Recently, researchers have shown enormous interest to investigate the properties of building materials such as mechanical, temperature and strain sensing, durability with nano materials [9]. Self-cleaning façade with the addition of titania nano particles to the mortar [10], self sensing cementitious composites [11] and electromagnetic interference(EMI) shielding [12] by the addition of conductive nano materials viz., carbon nano tubes, carbon nano fibers or carbon black have been explored. The application of nano-sized ingredients such as alumina and silica particles and understanding of the hydration behavior are the upcoming research areas dealing with cement and concrete materials [13]- [20].…”

Section: Introductionmentioning

confidence: 99%

Comparison of High Performance Fly Ash Concrete Using Nano Silica Fume on Different Mixes

Sankaranarayannan¹,

Jagadesan²

2016

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This paper investigates the experimental results on the effect of nano silica fume on compressive strength development of concretes containing high volume fly ash (HVFA). The effect of various silica fumes contents such as 1%, 2% & 3% (wt. %) as partial replacement of cement on the compressive strength of cements is evaluated in the first part. The nano silica fume content which exhibits the highest compressive strength above is used in high volume fly ash concretes containing 30% and 50% class F fly ash. The results show that among three different silica fumes contents, the addition of 1% increases the compressive strength of concretes. The addition of 1% silica fume also increases the early age and 28 days compressive strengths of HVFA concretes.

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Influence of finely ground limestone on cement hydration

Cited by 357 publications

References 3 publications

Assessing the chemical involvement of limestone powder in sodium carbonate activated slag

Assessing the chemical involvement of limestone powder in sodium carbonate activated slag

Influence of Various Soluble Carbonates on the Hydration of Portland Cement studied by X-ray Diffraction

Comparison of High Performance Fly Ash Concrete Using Nano Silica Fume on Different Mixes

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