Generalized Fracture Toughness and Compressive Strength of Sustainable Concrete Including Low Calcium Fly Ash

Golewski, Grzegorz Ludwik

doi:10.3390/ma10121393

Cited by 56 publications

(44 citation statements)

References 63 publications

(70 reference statements)

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“…However, little research has been carried out to study the effect of silica stone waste (SSW) on mechanical properties and the microstructure of concrete. The SSW can be an appropriate sustainable unusual material as a replacement of cement while increasing the compressive strength [ 20 ]. The compressive and tensile strength of concrete samples with 5, 10, 15, and 20% SSW powder at 7, 28, and 90 days were tested to investigate the use of SSW powder as a feasible alternative material to cement.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Incorporating Silica Stone Waste on the Mechanical Properties of Sustainable Concretes

et al. 2020

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Incorporating various industrial waste materials into concrete has recently gained attention for sustainable construction. This paper, for the first time, studies the effects of silica stone waste (SSW) powder on concrete. The cement of concrete was replaced with 5, 10, 15, and 20% of the SSW powder. The mechanical properties of concrete, such as compressive and tensile strength, were studied. Furthermore, the microstructure of concrete was studied by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy analysis (EDX), Fourier transformed infrared spectroscopy (FTIR), and X-Ray diffraction (XRD) tests. Compressive and tensile strength of samples with 5% SSW powder was improved up to 18.8% and 10.46%, respectively. As can be observed in the SEM images, a reduced number of pores and higher density in the matrix can explain the better compressive strength of samples with 5% SSW powder.

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Section: Introductionmentioning

confidence: 99%

The Effect of Incorporating Silica Stone Waste on the Mechanical Properties of Sustainable Concretes

et al. 2020

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“…Concrete structures can be described as a three-phase system that is composed by hardened cement paste, aggregate, and the interface between aggregate particles and cement paste [7,8]. Several researchers have studied the effect of various additives, such as fly ash, low calcium fly ash, coal fly ash, ZnO nanoparticles, carbon nano tubes, and polypropylene fibers on the quality of the cement and on the physical and on the mechanical characteristics of concretes [9][10][11][12][13][14]. More specifically, the use of fly ash in 20% in the cement of concrete specimens enhances the durability of the produced concretes, as small microcracks have been observed in the interfacial transition zone [11].…”

Section: Introductionmentioning

confidence: 99%

“…Geosciences 2019, 9, 264 2 of 15 in the cement positively contributes to their compressive strength [10]. However, aggregates are the major constituents of concrete, typically occupying between 70% and 80% of its volume.…”

Section: Introductionmentioning

confidence: 99%

Petrographic and Mechanical Characteristics of Concrete Produced by Different Type of Recycled Materials

et al. 2019

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This paper examined three different types of recycled materials, such as beer green glass, waste tile, and asphalt, which will be used in different mixtures in order to prepare concrete specimens and, more specifically, their effect on concrete strength and how the petrographic characteristics of various recycled materials influenced the durability of C25/30 strength class concrete. Particular emphasis was placed on the effect of artificial microroughness of glassy and smooth surfaces of recycled materials on their final concrete strength. The concrete strength values do not show great variance, but their limited differences have been qualitatively interpreted by a new promising petrographic methodology, including the study of the surface texture of the used aggregate materials. Concretes are produced with constant volume proportions, workability, mixing, and curing conditions while using different sizes of each aggregate type. The aggregates were mixed both in dry and water saturated states in concretes. Concretes that are made by a mixture of beer green glass with quartz primer, as well as of tile with quartz primer, presented the optimum possible results of the compressive strength.

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“…[4,5] and siliceous fly ash FA e.g. [6][7][8][9][10][11] for concrete, as well as an assessment of the properties of composites, to which a combination of both materials was used e.g. [12,13].…”

Section: Introductionmentioning

confidence: 99%

Potential of siliceous fly ash and silica fume as a substitute for binder in cementitious concretes

Gil

Golewski

2018

E3S Web Conf.

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Nowadays, concrete constructions are often erected from a material that has been modified with mineral additives or chemical admixtures. Thanks to such modifications, modern and innovative visions of architects and constructors are realizable. Modification of concrete microstructure with mineral additives results in a partial change of its properties as well as physical and mechanical parameters. Ecological and economic reasons are an additional cause of increased interest in the potential use of such additives as fly ash (FA), silica fume (SF), lime powder or granulated blast-furnace slag. The basic physical mechanism of interaction of FA and SF with concrete is primarily to seal the composite microstructure. In the paper a concrete modified with a constant amount of densified silica fume, and a variable percentage amount of siliceous fly ash was analyzed. Concrete samples have been subjected to mechanical and physical tests. Their results allowed to determine the optimal composition of a concrete mix containing the mineral supplements in the context of planned experiments. The use of a combined SF and FA additive as a substitute for a cement binder in a concrete mix allows for an optimal increase in the strength parameters of the concrete, thus not degrading its physical properties. The article presents the characteristics of materials used to make concretes and then analyzes the results of the composites' tests. An in-depth analysis of the results showed the usefulness of silica fumes and siliceous fly ashes as useful raw materials for a concrete production.

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Generalized Fracture Toughness and Compressive Strength of Sustainable Concrete Including Low Calcium Fly Ash

Cited by 56 publications

References 63 publications

The Effect of Incorporating Silica Stone Waste on the Mechanical Properties of Sustainable Concretes

The Effect of Incorporating Silica Stone Waste on the Mechanical Properties of Sustainable Concretes

Petrographic and Mechanical Characteristics of Concrete Produced by Different Type of Recycled Materials

Potential of siliceous fly ash and silica fume as a substitute for binder in cementitious concretes

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