A Study on Mechanical Properties of Concrete Incorporating Aluminum Dross, Fly Ash, and Quarry Dust

Abstract

The amount of waste, associated waste disposal costs, and environmental contamination may be minimized by identifying effective recycling approaches. These promising approaches will also lead to the protection of natural resources and economic gains. One example of waste disposal maybe by using it as a filling material or as a pozzolanic material for the production of concrete. In this regard, this study proposes to partially replace cement with aluminum dross and fly ash, and partially replace natural sand with quarry dust. Aluminum dross, cement, sand, and quarry dust were used in a variety of proportions with a constant percentage of fly ash for the design of nine concrete mixtures. Aluminum dross was replaced by 5, 10, 15, and 20% of the cement mass. At first, the optimum replacement of aluminum dross without using quarry dust was determined at a constant percentage of fly ash-15% based on the strength results. Later, by introducing the optimum substitution of aluminum dross with cement and fly ash, the quarry dust was partially replaced at 10, 20, 30, and 40% of river sand to determine the overall optimum mix. The mechanical and durability characteristics of the concrete using the three mixtures were analyzed. It has been observed that the mechanical and durability characteristics of a concrete mixture incorporating a fly ash-15%, aluminum dross-10%, and quarry dust-20% are better than that of standard concrete. Production of concrete using industrial waste can minimize infrastructure construction costs and reduce environmental impacts.

Prediction and optimization of properties of concrete containing crushed stone dust and nylon fiber using response surface methodology

“…This can be attributed to the angular shape and texture of CSD compared to river sand. Cheah et al [ 68 ] observed significant reduction in workability of concrete by incorporating 60% quarry dust due to insufficient compaction of concrete mix containing rough and porous quarry dust aggregates [ 69 ]. Likewise, incorporation of NF reduces the workability of concrete since the presence of fiber decreases the fluidity of the concrete mix [ 24 ].…”

Effects of Hydrolysis Parameters on AlN Content in Aluminum Dross and Multivariate Nonlinear Regression Analysis

“…Aluminum dross is a waste ash generated during aluminum production, which comes from infusible inclusions [1], oxides, and various additives that float on the aluminum melt surface during smelting [2]. As a typical solid waste product from the aluminum processing industry, it has been included in China's "National Hazardous Waste List (2021 edition)" due to its reactivity and leaching toxicity [3].…”

Efficient Al Recovery from Aluminum Dross with Simultaneous AlN Separation by a Mechanical Method

“…The composition of AD mainly includes Al, AlN, Si, SiO 2 , MgAlO 4 and other salts. Aluminum is the most abundant metallic element in the Earth's crust and has an excellent combination of chemical, mechanical and physical properties, which makes it suitable for many applications, such as cement, refractory matter, polyaluminum chloride (PAC), ceramics, concrete, geomaterial and alloys [2][3][4]. AD is mainly disposed of by landfill, and Waste 2022, 1…”