Recycling and utilization assessment of waste fired clay bricks (Grog) with granulated blast-furnace slag for geopolymer production

Zawrah, M.F.; Gado, R.A.; Feltin, Nicolas; Ducourtieux, S.; Devoille, Laurent

doi:10.1016/j.psep.2016.08.001

Cited by 168 publications

(44 citation statements)

References 45 publications

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“…It should be noted here that silica comes from two different sources, sodium silicate and the aluminosilicate material used. The results of this study show that the insufficient quantity of Na + ions and the unreacting excess of Si 4+ ions have a negative reflection on the mechanical strength of cured geopolymers [26]. The increase in the Na 2 SiO 3 /NaOH ratio increases the sodium content in the mixture.…”

Section: Silicate/hydroxide Ratiomentioning

confidence: 72%

“…The improvement in compressive strength is mainly due to the inclusion of blast furnace slag in the matrix, which leads to the reinforcement of the geopolymer binder. In addition, the amount of calcium oxide (CaO) contained in the ground granulated blast furnace slag precursor (GGBFS) was found to have a significant impact on the resulting cured geopolymer and therefore shows an improvement in the mechanical properties of the specimens [26]. The optimal resistance is obtained using 8 M NaOH, with a value of 6.21 MPa.…”

Section: Ggbfs/wb Ratiomentioning

confidence: 99%

“…The combination of fly ash and waste bricks was presented by Rovanîk et al [25]. Another study on the recycling of waste bricks and slag into new building material was presented by Zawrah et al [26].…”

mentioning

confidence: 99%

“…GGBFS is a waste produced by the iron blast furnace and subsequently tempered, and it is essentially composed by calcium alumino-silicate which is overload [26]. The GGBFS can be added to the geopolymer formulation since this component was proven to be one of the best activated materials, resulting in an increase in compressive strength and other mechanical properties [27,28].…”

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confidence: 99%

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Reuse of waste bricks: a new generation of geopolymer bricks

et al. 2019

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In this study, the potential for reuse of waste brick (WB) by alkaline activation in a new geopolymer brick was examined. The effect of the incorporation of ground granulate blast furnace slag (GGBFS), the molarity of sodium hydroxide (NaOH) and the silicate to sodium hydroxide ratio (Na 2 SiO 3 /NaOH) on the mechanical properties of the final product was investigated. The manufacturing of geopolymer bricks was carried out by mixing WBs, GGBFS, sand with a solution of hydroxide and sodium silicate. The samples were prepared according to different formulations. The optimal compressive strength obtained is 89.91 MPa, for a GGBFS/WB ratio of 80/20, an 8 M molarity of NaOH and a silicate/hydroxide ratio of 2/1. This study shows an effective feasibility for the recovery and recycling of industrial waste into a valuable product for the construction sector. This recycling method can bring environmental and economic benefits by using it as an alternative material to fired brick in construction. Given the results obtained, it will be interesting to study the environmental and economic impact as well as the durability properties of these geopolymer bricks. Graphical abstractKeywords Geopolymer · Recovery of waste bricks · GGBFS · Reuse · Alkaline activation · Compressive strength

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Section: Silicate/hydroxide Ratiomentioning

confidence: 72%

Section: Ggbfs/wb Ratiomentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Reuse of waste bricks: a new generation of geopolymer bricks

et al. 2019

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“…2A). The bands in range 1620 -1750 cm -1 are attributed to H-O-H bending [11]. The asymmetric stretch of Al-O are observed at bands 1042 cm -1 [12].…”

Section: Characteristics Of Adsorbentsmentioning

confidence: 93%

Analysis of Mass Transfer Resistance for Adsorption of Phosphate onto Industrial Waste Materials in Plug-flow column

Khamidun

Rahman

2017

MATEC Web Conf.

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Abstract. The understanding resistance of mass transfer for adsorption of phosphate (PO 4 3-) onto industrial waste such as clay brick and ceramic as an adsorbent is important to verify. This study presented the removal of PO 4 3-from a synthetic solution by adsorbing onto the clay brick and ceramic wastes in a plug flow column (PFC). The experimental results showed that increasing the flow rate was decreases the breakthrough time. The mass transfer factor (MTF) models were used to study the behaviours of breakthrough curve and to determine the resistance of mass transfer. The MTF models verified that the resistance of mass transfer could be dependent on porous diffusion until the percentage of outflow reaches 72% for clay brick waste and 86% for ceramic waste, even though film mass transfer can play a minor role in controlling the movement of PO 4 3-from the bulk water to film zone. The results of MTF models coefficient could be indicated to increase the capacity of clay brick and ceramic wastes to adsorb PO 4 3-from synthetic solution, it needs to develop the porosity of these adsorbents by either physical or chemical modification.

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Microstructural and mechanical properties of geopolymers based on brick scrap and fly ash

Kugler

Fehn

Sandner

et al. 2022

Int J Ceramic Engine & Sci

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In the present work, the influence of increasing brick scrap additions on the setting behavior and material properties of fly ash-based geopolymers is investigated. The geopolymers produced are tested for their compressive strengths, bulk densities, and thermal conductivities, among other properties. Both the starting materials and the produced geopolymers are also investigated by infrared spectroscopy, X-ray diffraction analysis, and scanning electron microscopy to show the relationship between the solidification behavior and the resulting material properties. The investigations show that brick scrap is very suitable as a matrix material for geopolymer production. Increasing brick scrap additions lead, among other things, to a reduction in bulk density, thermal conductivity and compressive strength.

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Recycling and utilization assessment of waste fired clay bricks (Grog) with granulated blast-furnace slag for geopolymer production

Cited by 168 publications

References 45 publications

Reuse of waste bricks: a new generation of geopolymer bricks

Reuse of waste bricks: a new generation of geopolymer bricks

Analysis of Mass Transfer Resistance for Adsorption of Phosphate onto Industrial Waste Materials in Plug-flow column

Microstructural and mechanical properties of geopolymers based on brick scrap and fly ash

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