Synergetic effect of biomass fly ash on improvement of high-volume coal fly ash concrete properties

Teixeira, E.R.; Camões, Aires; Branco, Fernando G.

doi:10.1016/j.conbuildmat.2021.125680

Cited by 41 publications

(34 citation statements)

References 48 publications

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“…The main goal of this study was to evaluate the environmental performances of various concrete formulations using biomass fly ash as a cement replacement material (Table 1) [4]. The method used in this study followed the phases of an LCA.…”

Section: Goal and Scopementioning

confidence: 99%

“…In the impact assessment, the life cycle inventory (LCI) flows are classified, characterized and normalized, using one of many possible Life Cycle Impact Assessment (LCIA) methodologies to estimate the potential environmental impacts. The last phase, interpretation, is very important to : i) identify, quantify and evaluate the information that results from the last two phases; ii) communicate the information in a correct way; and iii) recommend improvements within the analysed system [3,4].…”

Section: Goal and Scopementioning

confidence: 99%

“…The choice of limiting the study to the cradle-to-gate stage is justified by the fact that, in the studied compositions, the use and disposal of concrete will result in similar environmental impacts [4]. The declared functional unit is dependent on the goal of life cycle analysis and therefore constitutes 1 m 3 of concrete.…”

Section: System Boundaries and Functional Unitmentioning

confidence: 99%

“…Based both on the abovementioned context and methodological approach, a quantification and comparison of potential environmental impacts resulting from the production of 1 m 3 of concrete was made, using different types of binder: i) Portland cement; ii) Portland cement and CFA or/and BFA, iii) Portland cement and CFA and HL; and iv) Portland cement, CFA, BFA and HL. This work was presented for the defence of the first author PhD degree and it is presented in [4].…”

Section: Introductionmentioning

confidence: 99%

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Effect of using biomass fly ash on the concrete sustainability

Teixeira

Camões

Branco

2022

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Biomass fly ash has been studied has a partial cement material, since this material has a positive effect on concrete properties. Even though, some mixes with BFA presents a positive benefit, they need to be economically competitive and present a good environmental performance. So, the analyse and comparison of concrete that uses BFA as raw material substitution in terms of environmental impacts related to the production of conventional concrete. One of the best approaches to develop this type of study is to use the life cycle assessment (LCA) method. This method quantifies both the input flows, such as energy, water and materials, as well as the output flows, such as CO2 emission, solid wastes and liquid wastes. Based both on the abovementioned context and methodological approach, a quantification and comparison of potential environmental impacts resulting from the production of 1 m3 of concrete was made, using different types of binder and quantities of cement substitution.

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Section: Goal and Scopementioning

confidence: 99%

Section: Goal and Scopementioning

confidence: 99%

Section: System Boundaries and Functional Unitmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of using biomass fly ash on the concrete sustainability

Teixeira

Camões

Branco

2022

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“…Fly ash generated in various industries [8][9][10] have been used in the production of concrete mixtures for many years [11][12][13]. In the last decade, the use of ash as a fine and/or coarse aggregate in concrete has received considerable attention in various countries in order to widen the range of potential uses of fly ash in the construction sector [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Municipal Solid Waste Incineration Ash on the Properties and Durability of Cement Concrete

Vaičienė

Simanavičius

2022

Materials

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The aim of this study is to investigate the effect of municipal solid waste incineration bottom ash from a cogeneration plant on the physical and mechanical properties and durability of cement concrete. Part of the cement in concrete mixtures tested was replaced with 0%, 3%, 6%, 9%, and 12% by weight of municipal solid waste incineration bottom ash. Concrete modified with 6% of bottom ash had a higher density (2323 kg/m3), compressive strength at 28 days (36.1 MPa), ultrasonic pulse velocity (3980 m/s), and lower water absorption rate (3.93%). The tests revealed that frost resistance, determined in all-sided testing directions, of concrete modified with 6%, 9%, and 12% of bottom ash added by weight of cement corresponds to strength grade F100. Such concrete can be used in construction works.

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Sustainable binary/ternary blended mortars with recycled water treatment sludge using fly ash or blast slag: Characterization and environmental-economical impacts

Kina

2024

Environ Sci Pollut Res

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Water treatment sludge (WTS) is produced daily and disposed of as hazardous material. It would be advisable to use locally available waste products as supplementary cementitious materials that ensure to be disposed of without harming the environment. As a novelty, this research investigated the potential of using recycled WTS with fly ash (FA) and ground-granulated blast furnace slag (BFS) as ternary blended binders. Thus, it can provide an economical solution and alleviate the adverse environmental effects of excessive production of wastes and cement production. Within this scope, the mortars with 0–30 wt% replacement of cement with modified WTS (MWTS) were produced as binary blend, and also, they were combined with FA/BFS as ternary blended binders. Therefore, optimum utilization of waste products into the mortar in terms of rheological, mechanical, durability, microstructural properties, and environmental-economical aspects was examined. Adding 10% recycled WTS as binary caused higher strengths with lower porosity measured by the mercury intrusion porosimeter test and denser microstructure, as revealed by XRD patterns and SEM results. However, the drawbacks of using recycled WTS, in terms of rheological parameters and environmental-economical aspects, were suppressed by adding FA/BFS with comparable strength values. Specifically, cost, CO2 footprint, and embodied energy were reduced by combining 10% MWTS with FA by 8.87%, 37.88%, and 33.07%, respectively, while 90-day compressive and flexural strength were 5.1% and 5.32% lower. This study developed a feasible solution to use recycled MWTS by obtaining more eco-friendly and cost-effective cement-based materials. Graphical Abstract

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Synergetic effect of biomass fly ash on improvement of high-volume coal fly ash concrete properties

Cited by 41 publications

References 48 publications

Effect of using biomass fly ash on the concrete sustainability

Effect of using biomass fly ash on the concrete sustainability

The Effect of Municipal Solid Waste Incineration Ash on the Properties and Durability of Cement Concrete

Sustainable binary/ternary blended mortars with recycled water treatment sludge using fly ash or blast slag: Characterization and environmental-economical impacts

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