Wastes as aggregate substitution in polymer concrete

Sosoi, Gavril; Bărbuţă, Marinela; Șerbănoiu, Adrian Alexandru; Babor, Dan; Burlacu, Andrei

doi:10.1016/j.promfg.2018.03.052

Cited by 44 publications

(32 citation statements)

References 16 publications

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“…Such materials include polymer concrete, which also appears under the name mineral cast. It is a complex material consisting of inorganic aggregates, such as basalt, spodumene (LiAlSi 2 O 6 ), fly ash, river gravel, sand, chalk, etc., bound with each other by resin [1][2][3]. The most commonly used resins are epoxy [4], polyester [5] and vinyl ester [6].…”

Section: Introductionmentioning

confidence: 99%

Influence of machining parameters on the polymer concrete milling process

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et al. 2020

Int J Adv Manuf Technol

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The paper examines the wear of end mill cutters, the parameters of a workpiece's surface layer and the values of cutting forces during the machining of polymer concrete, which is one of the most difficult-to-cut materials. Increased abrasive wear of the active cutting edges is a result of the heterogeneous structure of this material, and it has a negative effect on the cutting process, the durability of the cutting tools as well as the roughness of the workpiece. It is very important to determine the machining parameters for this material from a tool durability and quality of machining point of view. The research was divided into two stages. In the first stage, the appropriate machining parameters were determined based on the measurement of the components of the cutting force. In the second stage, durability tests of four end mill cutters were carried out. During the tests, the component cutting forces, tool wear and surface roughness were measured. The highest tool durability was recorded for the monolithic cemented carbide cutter with coating NC Mill G9F42120N 4F. Tools made of high-speed steel should not be used for machining polymer concrete, as they exhibited the highest intensity of tool wear. The rapid loss of machinability of these tools leads to a rapid increase in cutting force and the roughness of the machined surface. From an economic point of view, cemented carbide end mill cutters with coatings seem to be the appropriate choice for machining polymer concrete.

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Section: Introductionmentioning

confidence: 99%

Influence of machining parameters on the polymer concrete milling process

Kępczak

Zgórniak

Lajmert

et al. 2020

Int J Adv Manuf Technol

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“…Nevertheless, not all wastes have the same potential for PPC manufacturing, as their own characteristics can modify the fresh or final product properties. Extensive research works have been conducted for determining the properties of PPCs made up of different recycled targets, like aggregates, sand, clay, fillers, fly ash, fuel ashes, plastics, or recycled fiber reinforced polymers, among others [1,3,4,[6][7][8][9][10][11][12][13]. However, nowadays, huge amounts of different wastes, with potential as PPC targets, continue to be disposed in landfills around the world and pollute the environment.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Fresh and Cured Properties of Polymer Concretes Based on Two Metallurgical Wastes

et al. 2020

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Polyester polymer concretes can substitute conventional concretes based on their usually good mechanical strength, adequate physical properties, and high resistance against aggressive chemical environments. They also show a high potential for using recycled targets in their manufacturing. This paper analyzes the fresh and cured properties of polyester polymer concretes containing two metallurgical wastes, namely: ladle slag and alumina filler. Both targets require a higher resin dosage than sand. The standard consistency test showed a low representativeness of the recycled fresh mixes’ workability. The ladle slag and alumina filler samples showed a higher length plastic shrinkage than those containing sand. All of the targets obtained cured density values in the range of 1.589–1.912 g/cm3. From a mechanical point of view, the sand and alumina filler containing polyester polymer concretes reached 11.02 and 10.93 kN, respectively, of flexural strength, while the ladle slag samples showed the best result with 19.31 kN. In the compressive strength test, the sand and alumina filler combinations reached 106.16 and 104.21 MPa, respectively, while the ladle slag achieved 160.48 MPa. The flexural and compressive elasticity modulus showed similar trends related to the resin content.

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“…In order to use the wastes in polymeric patching and grouting materials, and especially in coatings to improve the environmental aspects of its production, natural river and crushed fine aggregate, sand, and quartz flour can be replaced in different percentages by natural waste or sub-products, such as silica fume, milled recycle glass, fly ash, polystyrene granules, saw dust, polyethylene terephthalate (PET) particle, etc. [14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

“…However, they also concluded that further addition worsens these properties. In a study by Sosoi et al [14], fly ash was added as a filler, and aggregate fraction 0-4 mm was replaced in different dosages by saw dust, where epoxy resin was used as a binder. Waste substitution influenced the properties of the concrete.…”

Section: Introductionmentioning

confidence: 99%

Impact of Aggressive Media on the Properties of Polymeric Coatings with Solidification Products as Fillers

et al. 2019

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Dealing with waste materials, particularly hazardous waste, is a serious problem. Disposal areas keep growing, and the costs incurred are high. Disposing of such waste reduces negative environmental impacts and offers considerable financial savings. This paper focuses on the possibilities of incorporating pollutants found in hazardous wastes as fillers in coatings based on polymers (epoxide and polyurethane). These coatings are intended mainly for concrete and metal bases and offer secondary protection against adverse weather conditions. Important physical and mechanical properties of the newly developed materials were determined; they include surface hardness, impact resistance, tensile properties, and chemical resistance. These properties were also compared to those of the reference filler. At the same time, the influence of aggressive media on the properties of these materials was observed, in particular on flexural characteristics. The microstructures of the developed coatings were tested using a high-resolution optical microscope, before and after exposure to the chemicals. The positive effect of using progressive fillers, such as solidified hazardous waste (a solidification product (SF)), was witnessed by their constructive contribution to the materials’ physical and mechanical properties. The use of solidification products is unambiguously advantageous from technical, ecological, and economical stand points (utilization of hazardous waste as a progressive filler instead of landfilling, improvement of tensile properties, reduction in the price of coating system, and incorporation of the pollutants into the polymer matrix).

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Wastes as aggregate substitution in polymer concrete

Cited by 44 publications

References 16 publications

Influence of machining parameters on the polymer concrete milling process

Influence of machining parameters on the polymer concrete milling process

Characterization of Fresh and Cured Properties of Polymer Concretes Based on Two Metallurgical Wastes

Impact of Aggressive Media on the Properties of Polymeric Coatings with Solidification Products as Fillers

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