Quaternary blends of portland cement, metakaolin, biomass ash and granite powder for production of self-compacting concrete

Rojo-López, Gemma; Nunes, Sandra; González-Fonteboa, Belén; Martínez-Abella, Fernando

doi:10.1016/j.jclepro.2020.121666

Cited by 38 publications

(6 citation statements)

References 29 publications

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“…In recent years, efforts to achieve more efficient cement-based materials have opened up the possibility of using supplementary cementitious materials (SCMs). SCM can be pozzolanic, such as fly ash [5], granulated blast furnace [6], metakaolin [7] or silica fume [8]; or non-pozzolanic, such as limestone filler [9], granite powder [10], marble powder [11] or rubber powder that produces binary, ternary, or quaternary binders. The use of SCM directly affects concrete workability, mechanical performance, and durability.…”

Section: Introductionmentioning

confidence: 99%

“…Finally, to evaluate the sustainability of concrete with binary and ternary binders more accurately, economic and environmental aspects should be considered. For this purpose, different methodologies (found in the literature) can be used with certain being complex [18] whereas others are simple and can be easily used by concrete producers [10].…”

Section: Introductionmentioning

confidence: 99%

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Rheology, durability, and mechanical performance of sustainable self-compacting concrete with metakaolin and limestone filler

Rojo-López

González-Fonteboa

Martínez-Abella

et al. 2022

Case Studies in Construction Materials

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Rheology, durability, and mechanical performance of sustainable self-compacting concrete with metakaolin and limestone filler

Rojo-López

González-Fonteboa

Martínez-Abella

et al. 2022

Case Studies in Construction Materials

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“…Utilizing supplementary cementitious materials (SCMs) as Portland cement replacement in concrete can have positive environmental effects and relatively lower concrete production costs [1,2]. Examples of SCMs include fly ash (FA), rice husk ash (RHA), silica fume (SF), and granulated blast furnace slag (GBFS) [3][4][5][6][7]. By calcining kaolinite, a highly reactive pozzolanic substance known as metakaolin (MK) is produced.…”

Section: Introductionmentioning

confidence: 99%

Effect of Water Magnetization Technique on the Properties of Metakaolin-Based Sustainable Concrete

Elkerany,

Elshikh,

Elshami

et al. 2023

Construction Materials

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Using metakaolin (MK) in concrete with magnetized water (MW) has a high possibility to enhance concrete suitability. In this study, the effect of using MK and MW on concrete characteristics was studied through testing twelve concrete mixes. Seven ratios of MK were used in this study, namely 0%, 5%, 10%, and 20%, as an alternative to cement and +5%, +10%, and +20% as a cement additive. In addition, five water magnetization methods were applied on MK concrete. In the first stage of this study, the impact of different MK ratios on the workability of concrete, compressive strength, flexural strength, and tensile strength was studied using traditional tap water (TW) as the concrete mixing water. In the second stage, the best mix (best MK ratio) from the first stage was chosen to study the effect of the water magnetization method on concrete properties and to determine the best method for water magnetization. Scanning electronic microscope (SEM) analysis was also carried out on selected mixes to closely investigate the effect of MK and MW on concrete microstructure. The results showed that the best ratio of MK in concrete was +10% (MK as a 10% cement addition), and the best water magnetization method was to pass the water through 1.6 tesla then through 1.4 tesla magnetic fields. The SEM analysis confirmed the absence of pores after using MW instead of regular TW by increasing the calcium silicate hydrate (CSH) gel and reducing calcium hydroxide (CH). Using MK and MW enhanced the compressive strength by up to 33%, 32%, and 27% at 7, 28, and 365 days, respectively, and MW enhanced the workability by up to 3% compared to that of the control mix.

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“…In fact, life cycle assessments of different alternatives in the construction sector have been proposed [31]. Many studies have proposed the use of biomass ash as a supplementary cementitious material in concrete [32][33][34], which has been suggested to be the most beneficial possible use [24]. However, only a few studies have investigated the possibility of using coarser particles such as wood bottom ash as a substitute for conventional aggregates [35].…”

Section: Introductionmentioning

confidence: 99%

Wood ash versus expanded clay aggregate as internal curing water reservoirs in high performance concrete

et al. 2022

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The performances of expanded clay aggregate and wood ash as internal curing water reservoirs were studied in the mortar phase of a hypothetical high performance concrete with a low water-to-binder ratio. The two materials substituted the 15 and 30% of the sand volume. Two different binders, Portland cement and high-volume fly ash blended cement, were used. The compressive strength and the volume stability of the mortars in sealed and air-drying conditions were studied. Furthermore, the desorption capacity of the internal curing water reservoirs and the internal humidity inside the mortars during the first days after casting were analysed. The results shown that the reduction in the self-desiccation shrinkage was higher when the expanded clay aggregate was used, even in air-drying curing conditions, due to its higher desorption capacity in low-relative-humidity environments in comparison to that of the wood ash. However, wood ash had a stronger beneficial effect on early age autogenous shrinkage without significantly increasing the drying shrinkage. The two alternative aggregates influenced the strength moderately. Considering the technical, economic, and environmental implications of using the two lightweight aggregates, wood ash is recommended.

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Quaternary blends of portland cement, metakaolin, biomass ash and granite powder for production of self-compacting concrete

Cited by 38 publications

References 29 publications

Rheology, durability, and mechanical performance of sustainable self-compacting concrete with metakaolin and limestone filler

Rheology, durability, and mechanical performance of sustainable self-compacting concrete with metakaolin and limestone filler

Effect of Water Magnetization Technique on the Properties of Metakaolin-Based Sustainable Concrete

Wood ash versus expanded clay aggregate as internal curing water reservoirs in high performance concrete

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