The effect of fineness on the properties of the blended cements incorporating ground granulated blast furnace slag and ground basaltic pumice

Binici, Hanifi; Temiz, Hüseyin; Köse, Mehmet Metin

doi:10.1016/j.conbuildmat.2005.11.005

Cited by 104 publications

(36 citation statements)

References 6 publications

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“…We can conclude that L cement is more sensitive to pH and EC values of plasticizer, than B cement. This fact attests that these two cements need attentive choosing of plasticizers and it is confirmed by researches [24,25,26,27]. It is possible to generalize that the observed temperature, viscosity and EC changes tendencies in pastes basically reflect in calorimetric tests.…”

Section: Test Resultssupporting

confidence: 53%

Influence of Plasticizer Amount on Rheological and Hydration Properties of CEM II Type Portland Cements

Šeputytė-Jucikė

Pundienė

Kičaitė

et al. 2015

IOP Conf. Ser.: Mater. Sci. Eng.

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Section: Test Resultssupporting

confidence: 53%

Influence of Plasticizer Amount on Rheological and Hydration Properties of CEM II Type Portland Cements

Šeputytė-Jucikė

Pundienė

Kičaitė

et al. 2015

IOP Conf. Ser.: Mater. Sci. Eng.

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“…This is to be expected due to the higher fineness of the GGBS compared with the Calumite causing greater reactivity in the P100 system compared with the coarser P0 mix. Previous investigations into the particle size of BFS/PC systems also found that finer slags show a higher heat of hydration than coarser ones (Binici et al, 2007), consistent with the effect of the greater available reactive surface area.…”

Section: Resultssupporting

confidence: 50%

The effect of blast-furnace slag particle size on the hydration of slag–Portland cement grouts at elevated temperatures

Sanderson

Cann

Provis

2018

Advances in Cement Research

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The UK nuclear industry has historically used a unique specification of cement powder that differs from construction industry requirements. However, the slags that complied with this specification have become unavailable. The material now used to meet the requirements of the specification is a blend of standard construction industry ground granulated blast-furnace slag (GGBS), which has high fineness, with Calumite which is a coarser slag powder. Both materials have very similar chemical compositions, and the main reason for blending is to control the particle size distribution (PSD) to replicate the performance of the previous supply. The effect of changing the PSD on the performance properties of the cement paste was investigated. Isothermal conduction calorimetry at elevated temperatures was carried out to monitor the heat of hydration; it was found that the peak heat and total heat evolution increased with an increase in GGBS content. It was also found that Calumite contributes very little to the hydration reaction and thus behaves similarly to an inert filler. As the GGBS content was decreased, the fluidity of the pastes increased up to a certain point, but decreased again for systems dominated by very coarse particles, indicating that there is an optimum balance between the finer and coarser slag particles within this cementing system.

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“…One of the principal reasons for the use of slag in blended cements is the reduction in the heat released during the hydration process. The experimental investigations of Sakai et al [9] and Binici et al [10] show that the heat of hydration decreases as slag content increases. It is stated that when blast furnace slag cement is used, lower permeability and higher strength are reached at later stages, chloride ion penetration decreases, resistance to sulfate attack increases, and alkali silica reaction was affirmed [11].…”

Section: Introductionmentioning

confidence: 98%

Impact of different types of plasticizing admixtures on the rheological properties and hydration of blended cements

Pundienė

Kičaitė

Pranckevičienė

2015

J Therm Anal Calorim

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Portland cement manufacturing significantly contributes to CO 2 emissions into the atmosphere. In order to reduce CO 2 emissions, limestone and slag mineral admixtures are most prospective both technologically and economically in cement production. For such cements, it is important to select a certain type and amount of plasticizer and evaluate what plasticizers influence the heat released during hydration. In order to achieve the objectives of research, viscosity, conductivity, and DSC analyses of cement pastes with A and B plasticizers were performed. This study analyzes the effect of polycarboxylate ester (A) and modified lignosulfonate (B) plasticizers amount on rheological properties and hydration processes of the limestone and slag cement pastes. The use of A additive in contrast to B additive has a long-term effect on viscosity of both cement pastes and is less sensitive to mineral composition. Optimal A additive amount in case of limestone cement is 1.25 % and in case of slag cement is 0.3 %. In limestone cement additive A reduces total heat value by 6 % and additive B by 15 % after 48 h of hydration. In slag cement additive A increases total heat value by 4 % and additive B by 2 % after 48 h of hydration. Exothermal profiles show that in limestone cement additive A extends the EXO maximum time by 25 % and additive B by 40 % in samples after 24 h of hydration. In slag cement additive A extends the EXO maximum time by 37 % and additive B by 25 % in samples after the same time of hydration.

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The effect of fineness on the properties of the blended cements incorporating ground granulated blast furnace slag and ground basaltic pumice

Cited by 104 publications

References 6 publications

Influence of Plasticizer Amount on Rheological and Hydration Properties of CEM II Type Portland Cements

Influence of Plasticizer Amount on Rheological and Hydration Properties of CEM II Type Portland Cements

The effect of blast-furnace slag particle size on the hydration of slag–Portland cement grouts at elevated temperatures

Impact of different types of plasticizing admixtures on the rheological properties and hydration of blended cements

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