Green Concrete: Environment Friendly Solution

Ramesh, Gomasa

doi:10.54105/ijde.b8007.081221

Cited by 5 publications

(3 citation statements)

References 36 publications

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“…It should be noted that the use of multi-component cement containing SCMs will allow scientists to: Improve the efficiency of OPC production related to the possibility of using large amounts of mineral additives and nanoadditives, including what is often problematic or even harmful waste [ 38 ]; Achieve a significant reduction in CO 2 emissions [ 39 ]; Reduce energy consumption [ 40 ]; Meet the United Nations’ sustainable development goals [ 41 , 42 ]. …”

Section: Introductionmentioning

confidence: 99%

Fracture Performance of Cementitious Composites Based on Quaternary Blended Cements

Golewski

2022

Materials

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This study presents test results and in-depth discussion regarding the measurement of the fracture mechanics parameters of new concrete composites based on quaternary blended cements (QBC). A composition of the two most commonly used mineral additives, i.e., fly ash (FA) and silica fume (SF), in combination with nanosilica (nS), has been proposed as a partial replacement for ordinary Portland cement (OPC) binder. Four series of concrete were made, one of which was the reference concrete (REF) and the remaining three were QBC. During the research, the main mechanical parameters of compressive strength (fcm) and splitting tensile strength (fctm), as well as fracture mechanics parameters and the critical stress intensity factor (KIcS), along with critical crack-tip opening displacements (CTODc) were investigated. Based on the tests, it was found that the total addition of siliceous materials, i.e., SF + nS without FA, increases the strength and fracture parameters of concrete by approximately 40%. On the other hand, supplementing the composition of the binder with SF and nS with 5% of FA additive causes an increase in all mechanical parameters by approximately 10%, whereas an increase by another 10% in the FA content in the concrete mix causes a significant decrease in all the analyzed factors by 10%, compared to the composite with the addition of silica modifiers only.

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Section: Introductionmentioning

confidence: 99%

Fracture Performance of Cementitious Composites Based on Quaternary Blended Cements

Golewski

2022

Materials

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“…It should also be mentioned that material modification in the form of concretes based on multi-component binders also includes pro-ecological activities. It has been proven that by reducing the consumption of OPC and the possibility of using waste materials as a substitute for the binder, such solutions cause [68][69][70][71]:…”

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confidence: 99%

Concrete Composites Based on Quaternary Blended Cements with a Reduced Width of Initial Microcracks

Golewski

2023

Applied Sciences

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This article is devoted to the study of the combined effect of siliceous fly ash (FA), silica fume (SF), and nanosilica (nS) on the cement matrix morphology and size of microcracks occurring in the Interfacial Transition Zone (ITZ) between the coarse aggregate and the cement paste of concrete composites based on ordinary Portland cement (OPC). The manuscript contains analyses of width of microcracks (Wc) occurring in the ITZ area of concretes based on quaternary blended cements and changes in ITZ morphology in the concretes in question. Experiments were planned for four types of concrete. Three of them were composites based on quaternary blended cements (QBC), while the fourth was reference concrete (REF). Based on the observations of the matrices of individual composites, it was found that the REF concrete was characterized by the most heterogeneous structure. However, substitution of part of the cement binder with active pozzolanic additives resulted in a more compact and homogenous structure of the cement matrix in each of the QBC series concretes. Moreover, when analyzing the average Wc values, it should be stated that the modification of the basic structure of the cement matrix present in the REF concrete resulted in a significant reduction of the analyzed parameter in all concretes of the QBC series. For QBC-1, QBC-2, and QBC-3, the Wc values were 0.70 μm, 0.59 μm, and 0.79 μm, respectively, indicating a decrease of 38%, almost 48%, and 30%, respectively, compared with the working condition of concrete without additives. On the basis of the above results, it can therefore be concluded that the proposed modification of the binder composition in the analyzed materials clearly leads to homogenization of the composite structure and limitation of initial internal damages in concrete.

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“…In terms of strength and durability, green cement falls short of regular Portland cement. Ramesh (2021), on the other hand, asserts that for a sustainable future, the construction industry shouldn't take these drawbacks into account because the benefits of this cement outweigh its drawbacks by a wide margin. The lower carbon emissions into the atmosphere that this green cement may offer are its main benefits.…”

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confidence: 99%

Usage of the Green/Sustainable Materials in the Construction Process

Sohail¹

2022

SJARR

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This research attempts to assess the environmental impact of conventional elements and the significance of green materials in building. To attain the research objective, the information was gathered using an electronic questionnaire, and Google Drive was used to collect the answers. The data were further calculated on the SPSS computer using replies from the Likert Scale. On the SPSS sheets, participant responses were compiled and tallied. The vast majority of respondents supported the use of green building materials in the construction process for a sustainable development. The data's mean, standard deviation, maximum and minimum values were computed. Responses from participants shown in accordance with the percentages of the data that were presented, where the necessity of conducting an energy audit in buildings was at its highest level (74.94%). The study concluded that the appropriate consideration of eco-friendly sustainable construction materials is the most direct way for builders to start incorporating sustainable design ideas into structures construction materials is the most direct way for builders to start incorporating sustainable design ideas into structures.

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Green Concrete: Environment Friendly Solution

Cited by 5 publications

References 36 publications

Fracture Performance of Cementitious Composites Based on Quaternary Blended Cements

Fracture Performance of Cementitious Composites Based on Quaternary Blended Cements

Concrete Composites Based on Quaternary Blended Cements with a Reduced Width of Initial Microcracks

Usage of the Green/Sustainable Materials in the Construction Process

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