Mechanical-strength characteristics of concrete made with stainless steel industry wastes as binders

Cintas, María Dolores Rubio; Barnett, S. J.; Pérez-García, Francisca; Parrón-Rubio, María Eugenia

doi:10.1016/j.conbuildmat.2019.01.166

Cited by 28 publications

(16 citation statements)

References 32 publications

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“…Nowadays, concrete additives are being derived from recycling or special treatment of waste materials [ 10 , 11 , 12 ]. Waste should be recycled at first, but their usage in the concrete mix recipe is definitely possible [ 13 , 14 , 15 ]. For example, ash, old tires, foil or plastic packaging, glass bottles [ 16 , 17 , 18 ] can get a second life as a component of a concrete facade, foundation, or beam of a building.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Material Properties of Mortar Reinforced with Glass Fiber: An Experimental Study

et al. 2021

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The progressive increase in the amount of glass waste produced each year in the world made it necessary to start the search for new recycling methods. This work summarizes the experimental results of the study on mortar samples containing dispersed reinforcement in the form of glass fibers, fully made from melted glass waste (bottles). Mortar mixes were prepared according to a new, laboratory-calculated recipe containing glass fibers, granite as aggregate, polycarboxylate-based deflocculant and Portland cement (52.5 MPa). This experimental work involved three different contents (600, 1200, and 1800 g/m3) of recycled glass fibers. After 28 days, the mechanical properties such as compressive, flexural, and split tensile strength were characterized. Furthermore, the modulus of elasticity and Poisson coefficient were determined. The initial and final setting times, porosity, and pH of the blends were measured. Images of optical microscopy (OM) were taken. The addition of glass fibers improves the properties of mortar. The highest values of mechanical properties were obtained for concrete with the addition of 1800 g/m3 of glass fibers (31.5% increase in compressive strength, 29.9% increase in flexural strength, and 97.6% increase in split tensile strength compared to base sample).

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Section: Introductionmentioning

confidence: 99%

Mechanical and Material Properties of Mortar Reinforced with Glass Fiber: An Experimental Study

et al. 2021

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“…Numerous waste materials such as agricultural by-products and industrial wastes that contain amorphous silica have been used as partial replacement materials of cement in the construction industries, and they are known as cement replacement materials (CRM). Cement has been replaced with, in some cases, fly ash, silica fume, slag, coconut shell ash, stainless steel waste, and palm kernel shell ash [ 19 , 20 , 21 ]. Similarly, the fine aggregate was substituted with the waste materials to produce lightweight mortar/concrete [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Cement-Based Mortar Containing Oily Sludge Ash by Response Surface Methodology

et al. 2021

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In the industries of petroleum extraction, a large volume of oily sludge is being generated. This waste is usually considered difficult to dispose of, causing environmental and economic issues. This study presented the novel experimental method of manufacturing mortar used in civil construction by cement and oily sludge ash (OSA). The defined method was described with a logical experimental study conducted to examine a feasible manufacturing method for casting cement-based mortars by partially replacing cement with OSA. Replacement concentrations for OSA ranged from 0 to 20 percent by cement weight, while the water-to-cement (w/c) ratio was varied from 0.4 to 0.8, and the amount of sand was kept constant. The strengths and absorption rate of the mortar were monitored for 28 days. The OSA contains a crystalline structure with packs of angular grains. Because of OSA in the cement-based mortar mixtures and water-to-cement ratios, the mechanical strength was improved significantly. However, the water absorption trend increased linearly. Using variance analysis, the influence of OSA and w/c ratio on the behavior of mortar was acquired. The developed models were significant for all p-value reactions of <5%. Numerical optimization results showed that the best mixture can be obtained by replacing 8.19 percent cement with OSA and 0.52 as a ratio of w/c.

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“…Nowadays, there is already a lot of research that supports the adequacy of steel slag for the production of cementitious matrices [1,2,3,4,5,6]. Additionally, many studies in which aggregates are replaced by those types of by-products exist; e.g., blast furnace slag, copper slag, electric arc and fume dust have been used [2,7,8,9,10,11,12,13,14,15,16].…”

Section: Introductionmentioning

confidence: 99%

Slag Substitution as a Cementing Material in Concrete: Mechanical, Physical and Environmental Properties

et al. 2019

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A circular economy is a current tenet that must be implemented in the field of construction. That would imply the study of the possibilities of the use of waste generated, for obtaining materials the used in construction as replacements for the raw material used. One of these possibilities is the substitution of the cement by slag, which contributes to the reduction of cement consumption, decreasing CO2 emissions, while solving a waste management problem. In the present paper, different types of concrete made by cement substitution with different type of slags have been studied in order to evaluate the properties of these materials. Cement is replaced by slag from different steel mills, both blast furnace and ladle furnace slag. The percentages of slag substitution by cement are 30%, 40% and 50% by weight. Mechanical, physical and environmental properties have been evaluated. Compressive and flexural strength have been analysed as the main mechanical properties. As far as physical properties go, density and porosity tests were be reported and analysed, and from an environmental point of view, a leachate study was performed. It has been found that some kinds of slag (blast furnace slag) are very suitable as substitutes for cement, providing properties above those of the reference concrete, while other types (ladle furnace slag) could be valid for non-structural applications, contributing in both cases to a circular economy.

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Mechanical-strength characteristics of concrete made with stainless steel industry wastes as binders

Cited by 28 publications

References 32 publications

Mechanical and Material Properties of Mortar Reinforced with Glass Fiber: An Experimental Study

Mechanical and Material Properties of Mortar Reinforced with Glass Fiber: An Experimental Study

Optimization of Cement-Based Mortar Containing Oily Sludge Ash by Response Surface Methodology

Slag Substitution as a Cementing Material in Concrete: Mechanical, Physical and Environmental Properties

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