Influences of limestone particle size distributions and contents on blended cement properties

Knop, Yaniv; Peled, Alva; Cohen, Ronen A.

doi:10.1016/j.conbuildmat.2014.08.004

Cited by 64 publications

(25 citation statements)

References 22 publications

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“…Results obtained with the 42.5N cement for the Massinga samples are more similar with the results obtained by Knop et al [10], Bizzozero and Scrivener [11] and Menéndez et al [5], authors that used a 42.5N cement type. The decrease of the compressive strength in the entire interval, reported by Meddah et al [1], contrary to the results of this study and the results obtained by Knop et al [10], Bizzozero and Scrivener [11] and Menéndez et al [5], may be explained by the fact that Meddah et al [1] worked with limestone contents higher than 15%, highest beneficial value reported by the other authors.…”

Section: Resultssupporting

confidence: 90%

“…Statistical treatment of the results (flexural and compressive strength) of the specimens prepared with the 42.4N cement were all significantly different from the ones obtained with the reference concrete, but fortunately flexural strength results of the samples prepared with all limestone samples (MG1, MG2, SL1, SL2, MS1 and MS2) for all compositions (10,15, 20 and 25% limestone) are higher than flexural strength of the reference sample. On the other side, comparison of the compressive strength gave good results only for the MS2 limestone: Although statistical different, MS2 gave for all compositions (10,15, 20 and 25% limestone) values of the com-pressive strength above the values obtained for the reference material, thus confirming its potential to replace cement in the above mentioned contents.…”

Section: Resultsmentioning

confidence: 57%

“…Ashes become a rele-vant pozzolanic material when processed under conditions where a significant amount of amorphous silica is developed [4]. These materials present a better reactivity with cement components and develop normally a better strength than the effect observed with limestone additions, giving values of the compressive strength more similar to the values obtained for the conventional material, even for higher substitution of cement [9] [10].…”

Section: Introductionmentioning

confidence: 95%

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Effect of the Mineralogical Composition of Limestone on the Properties of Mortars

Macie¹,

Manhique²,

Manjate³

et al. 2016

MSCE

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Limestone has been used as a partial substitute for cement, due to its beneficial effect on mechanical properties of mortars and concretes. In the present research, we studied the effect of the mineralogical composition in mortars produced from limestone samples collected in different areas of Mozambique, using two cement types (Portland cement 32.5N and 42.5N). Additions of 10 to 25% limestone gave, in general and for the 32.5N cement, good results of the compressive strength for all limestone samples, while for the 42.5N only the Massinga samples performed well. Effect of the limestone additions on the flexural strength showed a beneficial effect for all samples and at all compositions studied, when using the 42.5N cement, while for the 32.5N cement only additions of 10% limestone gave values of the flexural strength higher than the reference material, with the exception of the Magude samples.

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Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 57%

Section: Introductionmentioning

confidence: 95%

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Effect of the Mineralogical Composition of Limestone on the Properties of Mortars

Macie¹,

Manhique²,

Manjate³

et al. 2016

MSCE

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“…The small size of the limestone particles is of high influence on the limestone particles distribution in the cement paste as they tend to agglomerate in the cement powder, lowering the limestone efficiency and hence the hardened cement paste compressive strength [3,4]. Previous studies examined cement pastes with partial substitution of the clinker by limestone with controlled particle size [7][8]. It was found that the surface of the limestone particles influences the hydration rate of the cement paste, as limestone particles increase the nucleation sites for the hydration reactions.…”

Section: Introductionmentioning

confidence: 99%

Development of sustainable mortar and concrete made of limestone blended cement - influence of particle size

Mumcuoglu¹,

Peled

2016

Proceedings of the 9th International Conference on Fracture Mechanics of Concrete and Concrete Structures

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Mortars and concretes with 20% substitution of cement by limestone were studied. Four different limestone powders having different particle diameters and surface areas were examined: one size smaller with high surface area, two sizes of larger with low surface area and one size similar to the original cement particles. It was shown that the compressive strength of the mortar and concrete made with limestone of different particle sizes were affected significantly by the surface area and size of the particles. Blended mortar and concrete made of medium limestone particle size had shown the highest density and hence the greatest compressive strength, while blended mortar and concrete with the fine limestone particles, which are commonly used in the construction industry, exhibited the lowest density and hence the smallest compressive strength. By controlling the size of the limestone particles and surface area, concrete and mortars with higher compressive strength can be achieved compared to those reported in the literature with similar clinker substitution content. Therefore the current work results have not only important scientific implications but also practical ones.

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“…Many researchers have studied the applicability of waste mineral powder in mortar and concrete production. The addition of marble dust [8,9], basalt powder [10][11][12][13][14][15], limestone powder [14][15][16][17] or granite powder [17,18] or positively affects the strength of cement mortar and concrete as well as durability of concrete.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Influence of Waste Basalt Powder on Selected Properties of Cement Paste and Mortar

Dobiszewska

Beycioğlu

2017

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

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Abstract. Concrete is the most widely used man-made construction material in civil engineering applications. The consumption of cement and thus concrete, increases day by day along with the growth of urbanization and industrialization and due to new developments in construction technologies, population growing, increasing of living standard. Concrete production consumes much energy and large amounts of natural resources. It causes environmental, energy and economic losses. The most important material in concrete production is cement. Cement industry contributes to production of about 7% of all CO 2 generated in the world. Every ton of cement production releases nearly one ton of CO 2 to atmosphere. Thus the concrete and cement industry changes the environment appearance and influences it very much. Therefore, it has become very important for construction industry to focus on minimizing the environmental impact, reducing energy consumption and limiting CO 2 emission. The need to meet these challenges has spurred an interest in the development of a blended Portland cement in which the amount of clinker is reduced and partially replaced with mineral additives -supplementary cementitious materials (SCMs). Many researchers have studied the possibility of using another mineral powder in mortar and concrete production. The addition of marble dust, basalt powder, granite or limestone powder positively affects some properties of cement mortar and concrete. This paper presents an experimental study on the properties of cement paste and mortar containing basalt powder. The basalt powder is a waste emerged from the preparation of aggregate used in asphalt mixture production. Previous studies have shown that analysed waste used as a fine aggregate replacement, has a beneficial effect on some properties of mortar and concrete, i.e. compressive strength, flexural strength and freeze resistance also. The present study shows the results of the research concerning the modification of cement paste and mortar with basalt powder. The modification consists in that the powder waste was added as partial replacement of cement. Four types of common cement were examined, i.e. CEM I, CEM II/A-S, CEM II/A-V and CEM II/B-V. The percentages of basalt powder in this research are 0%, 1%, 2%, 3%, 4%, 6%, 8% and 10% by mass. Results showed that the addition of basalt powder improved the strength of cement mortar. The use of mineral powder as the partial substitution of cement allows the effective management of industrial waste and improves some properties of cement mortar.

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Influences of limestone particle size distributions and contents on blended cement properties

Cited by 64 publications

References 22 publications

Effect of the Mineralogical Composition of Limestone on the Properties of Mortars

Effect of the Mineralogical Composition of Limestone on the Properties of Mortars

Development of sustainable mortar and concrete made of limestone blended cement - influence of particle size

Investigating the Influence of Waste Basalt Powder on Selected Properties of Cement Paste and Mortar

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