The quality of aluminum dross particles and cost-effective reinforcement for structural aluminum-based composites

Kevorkijan, Varužan

doi:10.1016/s0266-3538(99)00034-2

Cited by 23 publications

(13 citation statements)

References 11 publications

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“…The fire bricks with certain aluminium content were casted into 3 identical blocks of (21 x 21 x 2.5) cm 3 . These identical blocks were arranged in front of the furnace with each thermocouple inserted in between the blocks.…”

Section: Thermal Insulation Testmentioning

confidence: 99%

“…The study on correlation of aluminium particle volume and the obtained pore volume was facilitated using Image-J software and real-gas equation. As a reference, the pore volume of 0.0001 cm 3 within the fire bricks can be obtained due to the contribution of 1 aluminium particle of 0.0000297 cm 3 . The porosity of solid material describes the ratio of pore volume with respect to total volume of the material.…”

Section: Macrostructure Of Porous Fire Bricksmentioning

confidence: 99%

“…As stated above, aluminium powder is one of typical bloating agent which is used in the production of refractory material [2], Al-Al2O3 composite [3], and aluminate cement [4]. The reaction between aluminium and water, catalyzed by NaOH, has been elaborated in the previous studies [5][6], as shown in the following equation: From Eq.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of aluminum base-reaction effect in density, porosity, and thermal insulation of porous fire bricks

Firmansyah¹,

Meidianto²,

Widayatno³

et al. 2018

AIP Conference Proceedings

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Abstract.This paper reports the effect of aluminium corrosion reaction on the density, porosity, and thermal insulation capability of porous fire bricks. The reaction between aluminium and alkaline solution produces hydrogen and other sediment products. The test specimens of fire bricks were made from the mixture of castable cement, aluminium powder of 325 mesh in size (0, 0.1, 1, and 2 wt% with respect to castable cement), and 0.185 M KOH solution. The structural examination of the specimens shows the increase of porosity to 22.7 -30.6% and the decrease of density in the range of 1.135-1.503 g/mL. In addition, the samples possess average pore size of 0.001-0.003 cm 3 with the thermal insulation in the range of 47-78%.

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Section: Thermal Insulation Testmentioning

confidence: 99%

Section: Macrostructure Of Porous Fire Bricksmentioning

confidence: 99%

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Analysis of aluminum base-reaction effect in density, porosity, and thermal insulation of porous fire bricks

Firmansyah¹,

Meidianto²,

Widayatno³

et al. 2018

AIP Conference Proceedings

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“…Material cost is the price of major materials, such as reinforcing bar and binding wire. Labor cost is the cost for working forces, such as reinforcing bar placers and general workers [67]. Other expenses include rent fees for tools and others.…”

Section: Direct Cost Evaluation Of Constructionmentioning

confidence: 99%

Assessment of Construction Cost Saving by Concrete Mixing the Activator Material

Kim

2016

Sustainability

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Studies which reduce cement usage, develop an alternative by partial replacement of cement with blast-furnace slag, fly ash, or such industrial byproducts, and evaluate the environmental load and economic value of concrete mixed with such are in high demand. In this study, A-BFS (Activator Blast Furnace Slag), which is mixed with an activator in order to induce early-age strength manifestation of BFS mixed concrete was used to execute a physical property evaluation of concrete. This study first conducted physical property tests for compression strength of concrete that partially replaced OPC (ordinary Portland cement) with A-BFS and executed a comparison/analysis with 100% OPC. It was thought that if concrete early strength is manifested through this process when applied to RC (Reinforced Concrete) building, at most a three to four day construction cycle would be possible, according to which the economic value of the construction period reduction was evaluated. For this evaluation, general apartment houses (Case 1) were taken as the evaluation subject, and for comparison, Cases 2, 3, and 4 were set up by the mix ratio of A-BFS, and the economic value evaluation range was established. As a result, it was found that Case 2 had no change from Case 1, while Case 3 saved about 106,654,762 KRW (Korea Won) and Case 4 saved about 159,982,143 KRW.

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“…1) Being a valuable industrial waste due to its chemical composition containing mainly metallic Al, Al 2 O 3 , SiO 2 , MgO and CaO, many methods to reuse the aluminum dross have been studied, such as recovering of metallic Al, reinforcing material in aluminum dross composites, and synthesizing spinel by solid-state reaction with MgO. [2][3][4][5] SiAlON ceramics are considered as an attractive material for engineering applications because of their excellent mechanical, chemical, and thermal properties. 6) However, the low fracture toughness of ceramics has restricted their practical use.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of β-SiAlON-AlN-Polytypoid Ceramics from Aluminum Dross

Wang

Chen

et al. 2010

Mater. Trans.

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Aluminum dross is one of the main secondary wastes during aluminum recycling procedure. It is utilized to synthesize -SiAlON-AlNpolytypoid ceramics by the reduction-nitridation method in this paper. The effects of the reaction parameters, such as the Si/Al ratio, reaction temperature and holding time are studied in detail. The results indicate that the synthesized products are mainly composed of -SiAlON and MgAlN-polytypoid at 1450 C to 1650 C for 6 h. As the Si/Al ratio changes from 1.0 to 2.5, the amount of -SiAlON increases while the amount of Mg-AlN-polytypoid decreases. At 1750 C, the samples consist mainly of AlN and AlN-polytypoid because SiO gas is significantly evaporated. With the increment of synthesis temperature, the growth of elongated Mg-AlN-polytypoid grains is significantly accelerated. SEM and EDS analysis results for the samples formed at 1650C for 6 h show that the -SiAlON grains display a short platelet morphology, and Mg-AlNpolytypoid grains possess needle or lath morphology. This study suggests that it is possible to synthesize the low cost SiAlON ceramics with high toughness from aluminum dross.

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The quality of aluminum dross particles and cost-effective reinforcement for structural aluminum-based composites

Cited by 23 publications

References 11 publications

Analysis of aluminum base-reaction effect in density, porosity, and thermal insulation of porous fire bricks

Analysis of aluminum base-reaction effect in density, porosity, and thermal insulation of porous fire bricks

Assessment of Construction Cost Saving by Concrete Mixing the Activator Material

Synthesis of β-SiAlON-AlN-Polytypoid Ceramics from Aluminum Dross

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The quality of aluminum dross particles and cost-effective reinforcement for structural aluminum-based composites

Cited by 23 publications

References 11 publications

Analysis of aluminum base-reaction effect in density, porosity, and thermal insulation of porous fire bricks

Analysis of aluminum base-reaction effect in density, porosity, and thermal insulation of porous fire bricks

Assessment of Construction Cost Saving by Concrete Mixing the Activator Material

Synthesis of &beta;-SiAlON-AlN-Polytypoid Ceramics from Aluminum Dross

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Synthesis of β-SiAlON-AlN-Polytypoid Ceramics from Aluminum Dross