Formulating and optimising the compressive strength of controlled low-strength materials containing mine tailings by mixture design and response surface methods

Bouzalakos, S.; Dudeney, A.W.L.; Chan, B.K.C.

doi:10.1016/j.mineng.2013.07.007

Cited by 45 publications

(4 citation statements)

References 20 publications

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“…Several DoE methods, such as full factorial, Plackett-Burman, Box-Behnken, and Taguchi designs, have been used in the literature. However, the mixture design method was used herein because of its formulation optimization when the constituent proportions are considered [46][47][48][49][50]. It was considered the most appropriate method to use because the Moreover, the percentages of amorphous oxides in the raw sediment (RS) and FCS were estimated using Diffrac.Eva analysis software and found to be equal to 30% and 49%, respectively.…”

Section: Experimental Design and Mixture Modelmentioning

confidence: 99%

Development of Flash-Calcined Sediment and Blast Furnace Slag Ternary Binders

et al. 2023

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Partial cement replacement by low-carbon-impact additions has the potential to reduce CO2 emissions. The aim of this study is the development of a ternary binder that includes ordinary Portland cement (OPC), ground granulated blast furnace slag (GGBS), and flash-calcined sediment (FCS). To upgrade dredged mineral material into FCS, a new heat treatment, i.e., flash calcination, was used. The used materials were physically, chemically, and mineralogically characterized. The mixture design method was used to optimize the design of the ternary blended binders. A model was developed and validated for the prediction of the 90-day compressive strength for mortars composed of OPC (C), GGBS (S), and FCS (F). Five mixes, reference RM (100% OPC), binary mix (50% OPC and 50% GGBS), and three ternary mixes with FCS rates of 10%, 15%, and 20% were characterized in fresh and hardened states. The results show that the incorporation of FCS reduced the workability of the mixes and increased their densities. Moreover, the initial setting time of the mix was delayed, and the heat of the hydration peak was decreased. The 90-day compressive strengths of the mix containing 10% FCS were higher than those of RM. In conclusion, the use of 10% FCS and 40% GGBS was an efficient substitute for 50% OPC.

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Section: Experimental Design and Mixture Modelmentioning

confidence: 99%

Development of Flash-Calcined Sediment and Blast Furnace Slag Ternary Binders

et al. 2023

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“…In this study, we chose to use the mixture design method which is particularly suited to formulation optimization issues and already used in the literature [43][44][45][46][47] to a mix containing OPC, GGBS and FCS.…”

Section: Experimental Design and Mixture Modelmentioning

confidence: 99%

Optimization of Ternary Binders Based on Flash-Calcined Sediments and Ground Granulated Blast Furnace slag Using a Mixture Design

Zeraoui¹,

Maherzi²,

Benzerzour³

et al. 2021

Preprint

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CO2 emissions resulting from the production of cement is a major issue, but can be limited by the partial substitution of cement by low-carbon-impact additions. The aim of this study was the formulation of a ternary binder based on ordinary Portland cement (OPC), ground granulated blast-furnace slag (GGBS) and flash-calcined sediment (FCS), a dredged waste which was valorized after applying a new heat treatment: flash calcination. The used materials were physically, chemically and mineralogically characterized. The composition of the formulations was optimized using mixture designs. Five formulations, one reference formulation RM (100% OPC), one binary formulation (50% OPC/50% GGBS), and three ternary formulations with a variable FCS rate (10%, 15%, 20%), were selected and characterized fresh and hardened. Results showed that the incorporation of FCS reduced the workability and increased the density. In addition, a decrease in the initial setting time and the heat of hydration peak were observed. In the hardened state, the formulation containing 10% FCS showed 90-day mechanical strengths superior to that of RM. The use of FCS in ternary binders could reduce the environmental impact by reducing greenhouse gas emissions.

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“…air-entraining admixtures, foaming agents or fly ash [2]), CLSM support the use of recycled or reused components from diverse origin such as recycled fine aggregates [11], waste materials, industrial by-products [12][13][14][15] and mine tailings [16].…”

Section: Type Of Applicationmentioning

confidence: 99%

Methodology for the design of controlled low-strength materials. Application to the backfill of narrow trenches

Blanco

Pujadas

Cavalaro

et al. 2014

Construction and Building Materials

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The design of controlled low-strength materials (CLSM) is generally based on experimental approaches without considering an efficient use of the component materials. The present study proposes a general methodology for the design of optimised CLSM that includes the definition of the mechanical requirements through numerical simulations with FEM and an experimental procedure to define the mix by optimising the aggregate skeleton, the content of cement and the use of admixtures and additions. Moreover, the methodology is applied to the backfill of narrow trenches.

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Formulating and optimising the compressive strength of controlled low-strength materials containing mine tailings by mixture design and response surface methods

Cited by 45 publications

References 20 publications

Development of Flash-Calcined Sediment and Blast Furnace Slag Ternary Binders

Development of Flash-Calcined Sediment and Blast Furnace Slag Ternary Binders

Optimization of Ternary Binders Based on Flash-Calcined Sediments and Ground Granulated Blast Furnace slag Using a Mixture Design

Methodology for the design of controlled low-strength materials. Application to the backfill of narrow trenches

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