Mineral admixtures in mortarsQuantification of the physical effects of inert materials on short-term hydration

Cyr, Martin; Lawrence, P.; Ringot, Erick

doi:10.1016/s0008-8846(04)00233-9

Cited by 52 publications

(66 citation statements)

References 47 publications

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“…The contribution of mineral admixtures and superplasticizer to the compressive strengths of concretes at 07 days and 28 days can be evaluated by analyzing the variation of compressive strengths of concretes with admixtures and super-plasticizer (B-SP-Ad), compared to the reference concrete without admixtures or superplasticizers (B-0), depending on the rate of cement substitution by admixtures for both cements used. The results for the studied concretes can be summarized in table 4. These results confirm the positive contribution of the combined action of admixtures and super-plasticizer on compressive strengths at low rates of cement substitution.…”

Section: Iv2 Effect Of Mineral Admixtures On the Consistency Of Concsupporting

confidence: 67%

“…The positive contribution of limestone admixture is mainly due to the acceleration of the process of hydration of cement by at youth ages, as well as reducing of the amount of water necessary to the reference consistency by using of superplasticizer. This behavior of limestone at youth ages has been confirmed by several authors [1,4,5,7,8] and can be influenced by the nature of cement and the superplasticizers used [5,6,8,[10][11][12][13][14].…”

Section: Iv31 Compressive Strengths At 07 Dayssupporting

confidence: 67%

“…The action of the studied admixtures could cause a decrease or an increase in the consistency of concretes. These favorable or unfavorable effects on the rheological properties of fresh concretes, depended on the nature, quantity and granular characteristics (fineness and morphology) of the admixtures in the mixtures [1,[3][4]9]. In what follows, we used in the reference concretes a quantity of water lower than that required for mixing concretes with admixtures with a favorable granular effect on the rheological properties.…”

Section: Methodsmentioning

confidence: 99%

“…Previous released studies showed that the combined use of mineral admixtures and super-plasticizers in mortars can generate certain modifications on the rheological and mechanical behaviors of cementing materials in the fresh and hardened states [1][2][3][4][5][6][7]. These modifications depend on several parameters such as, the nature, quantity and fineness of the incorporated admixture, as well as nature of cements and super-plasticizers used [8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…We could show that the combined use of mineral admixtures with super-plasticizers in mortars could have a positive contribution on compressive strengths. [4,[9][10]. For the used admixtures, the contribution of the mineral admixtures and super-plasticizers, compared to the reference mortar, remained favorable up to 20% of the rate of cement substitution for limestone and pozzolan admixtures with fineness more than 5000 cm²/g.…”

Section: Introductionmentioning

confidence: 99%

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Valorization of Local Mineral Admixtures in Concretes

Boudchicha

Gallias

2014

MATEC Web of Conferences

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Abstract:This study is an extension of previous researches on mortars with mineral admixtures and superplasticizers. In this way, the same methodology was applied to concretes and the use of mineral admixture was limited to low cost materials available in Algeria as limestone, pozzolan and blast furnace slag, with current cement and super-plasticizer. The experimental methodology used was based on the volume substitution of the cement by admixtures in mixtures with the absolute volume of the solid phases and workability preserved constant. The main results achieved showed that the super-plasticizer demand of concretes depends on the nature and the quantity of the incorporated admixture. The combined use of admixtures and super-plasticizer has generally a favourable effect on compressive strengths at 07 and 28 days at low rates of cement substitution, which vary significantly with the nature, fineness and quantity of the used admixtures. At 07 days, limestone admixtures give better improvements and reach more than 20 % of gain to the compressive strength of the reference concrete with no admixtures or super-plasticizer, at 10 % of the cement substitution and still better until 30 %. At 28 days, blast furnace slag admixtures give better improvements at 28 days and reach more than 20 % of gain to the compressive strength of the reference concrete at 20 % of the cement substitution and still better until 30 %. This contribution to the compressive strength is explained on the one hand by the reduction of the quantity of water in the mixtures at the same consistency, by the use of the super-plasticizer and on another hand by the activity of Limestone admixtures at early ages and to the latent hydraulic properties of blast furnace slag at 28 days.

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Section: Iv2 Effect Of Mineral Admixtures On the Consistency Of Concsupporting

confidence: 67%

Section: Iv31 Compressive Strengths At 07 Dayssupporting

confidence: 67%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Valorization of Local Mineral Admixtures in Concretes

Boudchicha

Gallias

2014

MATEC Web of Conferences

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Effects of limestone filler and silica fume on rheology and strength of self‐compacting concrete

Benaicha

Belcaid²,

Alaoui³

et al. 2019

Structural Concrete

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In the manufacture of self-compacting concrete (SCC), the replacement of a cement fraction by mineral additions is the most common method of the mix design in order to reduce the amount of cement for economic or environmental reasons. This study presents the effect of limestone filler and silica fume on the rheological and mechanical behavior of 13 types of self-compacting concretes. Based on the rheology measurement such as slump flow diameter, V-funnel flow time, yield stress, and plastic viscosity, and the mechanical tests such as the compressive strength and Young's modulus, our results show that it is possible, according to the type and dosage of mineral additions, to correlate the mechanical parameters and each of the used rheology tests. K E Y W O R D Scompressive strength, limestone filler, rheology, silica fume, Young's modulus

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Applying Circular Economy to Construction Industry through Use of Waste Materials: A Review of Supplementary Cementitious Materials, Plastics, and Ceramics

Nodehi

Taghvaee

2022

Circ.Econ.Sust.

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Due to constant growth of waste production, recent strategies in waste management such as circular economy promote the maximum life cycle use of materials. In construction industry where structures tend to last for decades, the use of such recycled materials can have numerous benefits including overall reduction in cost, in use of virgin materials, and in CO2 production as well as providing an opportunity for a tailored concrete with specific properties. Yet, because of the stereotypical and negative image of mechanical properties reduction, as a result of using waste materials, often their vast contribution in sustainability and durability properties are not taken into consideration. In this regard, we propose viewing waste materials as secondary raw materials that in certain regards, can provide a favorably tailored property. In this regard, the following review article first provides a short description of the most commonly used waste materials such as supplementary cementitious materials (fly ash, ground granulated blast furnace slag, silica fume, metakaolin, rice husk ash, municipal solid waste ash, steel slag, copper slag), ceramics from construction and demolition (glass powder, brick and tile ceramic and porcelain), and the vastly available plastic materials (polypropylene, polyethylene terephthalate, polyvinyl chloride, and rubber). Then, by reviewing a selected environmental impact (life cycle assessment), physicochemical, durability, and finally mechanical properties discuss the limitations, future projections of newer waste materials (e.g., agricultural waste) to be used and suggest potential future study in this area.

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Mineral admixtures in mortarsQuantification of the physical effects of inert materials on short-term hydration

Cited by 52 publications

References 47 publications

Valorization of Local Mineral Admixtures in Concretes

Valorization of Local Mineral Admixtures in Concretes

Effects of limestone filler and silica fume on rheology and strength of self‐compacting concrete

Applying Circular Economy to Construction Industry through Use of Waste Materials: A Review of Supplementary Cementitious Materials, Plastics, and Ceramics

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