Justification of the Water-Cement Ratio Decision for Cement Mixtures Using CBPB Wastes

Ezerskiy, Valeriy; Kuznetsova, Natalia Vladimirovna; Селезнев, А Д

doi:10.4028/www.scientific.net/msf.945.1009

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…Over-exploitation of resources also affects sustainability. To overcome this situation, a paradigm shift in the direction of material substitution becomes the order of the day [27][28][29][30][31][32][33]. The construction industry offers a great scope to utilize industrial by-products as the alternative to conventional materials.…”

Section: Introductionmentioning

confidence: 99%

Sustainable utilization of cement kiln dust and GGBS in the development of eco-friendly concrete composite

Kumar,

Ramasamy,

Soundararajan

et al. 2024

Matéria (Rio J.)

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Concrete is an unavoidable element in modern construction. During concrete production enormous amount of CO 2 is emitted which results in global warming. From the point of view of environmental protection, sustainable concrete production should be focused on. An eco-friendly solution to lessen the impact on the environment has been briefed in this article. Ground Granulated Blast furnace Slag (GGBS) and cement kiln dust have been partially replaced with cement. The strength and durability properties of GGBS and cement kiln dust-incorporated concrete were evaluated and presented. The optimal substitution percentage of GGBS and cement kiln dust was reckoned as 15% and 12% respectively. The test results fortified that the replacement of GGBS and cement kiln dust for cement in concrete becomes an eco-friendly solution from the point of view of quality and sustainability.

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Section: Introductionmentioning

confidence: 99%

Sustainable utilization of cement kiln dust and GGBS in the development of eco-friendly concrete composite

Kumar,

Ramasamy,

Soundararajan

et al. 2024

Matéria (Rio J.)

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“…According to the waste classifier, the main component of the optical disk composition, polycarbonate, belongs to hazard class V, which makes it possible to use recyclable discs as an inert filler in a cement composite material, like other powdered industrial waste fillers [6][7][8][9][10][11][12][13][14]. It should be noted that in the case of the utilization of optical discs in the production of fine-grained concrete, they do not require thorough cleaning from aluminum film and other impurities.…”

Section: Introductionmentioning

confidence: 99%

Cement Building Materials with Powdered Optical Discs as a Filler

Ezerskiy¹,

Kuznetsova²,

Селезнев³

2021

KEM

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The object of study is a cement composite material with powdered utilized optical discs. The objective is to establish the dependences of the main strength characteristics – com-pressive strength, bending strength, and density – on the amount of waste added into the mix-ture and the water-cement ratio.The compositions of the mixtures for the production of the cement composite material samples consisted of the following components: cement, sand, powdered waste in the form of utilized optical discs and water.Based on the results of testing the samples, mathematical models have been developed which describe the dependences of the physical and mechanical properties of the cement com-posite material samples on the fraction of waste and water-cement ratio. It was found that with an increase in the amount of powdered waste added into the mixture, it reduces the compressive strength, bending strength, and density of the samples under study, however, the optimization of the water-cement ratio makes it possible to obtain equal strength compositions with a differ-ent fraction of waste.Component compositions of cement composite material mixtures with the addition of powdered utilized optical discs in the amount of 10 to 25 % of the total filler mass, which can provide construction products with a compressive strength class B20, are presented.

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Cement Kiln Dust (CKD) as a Partial Substitute for Cement in Pozzolanic Concrete Blocks

et al. 2023

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This study investigates the effect of the partial replacement of ordinary Portland cement (OPC) with cement kiln dust (CKD) on the engineering properties of pozzolanic concrete for use in block manufacturing. Ultimately, this could potentially reduce cement consumption and CO2 emissions. The study was carried out on cylindrical concrete samples prepared from five mixtures comprising 71.13% pozzolan and 14.16% water, with 0, 5, 10, 15, or 20% of the OPC fraction (14.71 wt.%) replaced by CKD. The samples were tested for density and compressive strength (UCS) at curing ages of 7, 14, 28, 56, and 91 days; and for voids and water absorption after 28 curing days. Results show that increasing CKD content lowered the voids and increased the water absorption. The 15% CKD sample had the highest UCS, regardless of the curing age. X-ray diffraction analysis confirmed that the phase responsible for hydration, calcium silicate hydrate, was higher in the 15% CKD sample than the control.

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Justification of the Water-Cement Ratio Decision for Cement Mixtures Using CBPB Wastes

Cited by 3 publications

References 3 publications

Sustainable utilization of cement kiln dust and GGBS in the development of eco-friendly concrete composite

Sustainable utilization of cement kiln dust and GGBS in the development of eco-friendly concrete composite

Cement Building Materials with Powdered Optical Discs as a Filler

Cement Kiln Dust (CKD) as a Partial Substitute for Cement in Pozzolanic Concrete Blocks

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