Rheological characterization and performance-related evaluation of paint sludge modified binders

Dalmazzo, Davide; Vercelli, Arianna; Santagata, Ezio; Ruffino, Barbara; Zanetti, Mariachiara

doi:10.1617/s11527-016-0945-y

Cited by 9 publications

(13 citation statements)

References 13 publications

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“…Such a process, which was the subject of a request for a patent (IP 18446), entails the drying and milling of PS retrieved from painting plants followed by mixing with bitumen. Successful validation of the performance-related properties of PSMBs and of their corresponding bituminous mixtures was performed by means of an array of laboratory tests which considered PS of different types taken from several plants (Dalmazzo et al, 2017; Ruffino et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Reuse of paint sludge in road pavements: Technological and environmental issues

et al. 2018

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This paper presents some of the results obtained in a research project focused on the use of paint sludge (PS) as a modifying agent in the production of bituminous binders for paving applications. The scope of the project was to provide an innovative, sustainable and profitable solution to waste management problems which automotive industries have to face worldwide as a result of the production of PS. The authors applied for a patent which defines the industrial process for the production of PS modified binders (PSMBs). Measurements and analyses which were considered relevant for the assessment of technological feasibility included evaluation of: PS physical characteristics, PSMB high-temperature viscosity and PSMB storage stability. Environmental issues were addressed by considering PS chemical composition, gaseous emissions during PSMB production, and leaching behavior of bituminous mixtures containing PSMBs. Obtained results show that with a proper adaptation of the PSMB production process (i.e., PS drying at a higher temperature than 105°C) it is possible to comply with technological and environmental requirements such as those related to storage stability and to gaseous emissions during PSMB production and laying of bituminous mixtures. Leaching tests, aimed to evaluate runoff water quality, show no substantial difference in the release of substances in water between standard bituminous mixtures and bituminous mixtures prepared with PSMBs.

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Section: Introductionmentioning

confidence: 99%

Reuse of paint sludge in road pavements: Technological and environmental issues

et al. 2018

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“…Figure 4 and Figure 5 show the results of flexural and compressive test for PSSP-concrete respectively. As can be seen, when PSSP accounts for 5% of cement weight, flexural and compressive strength of specimens are increased by 5 1.4% 、 16.8% with both surfactant and defoamer. Unfortunately, both flexural and compressive strength of specimens declined with increasing PSSP to top 15 % of cement weight in either group.…”

Section: Results Of Pssp Regeneration Treatmentmentioning

confidence: 85%

“…The results have demonstrated that these materials can be used in residential construction. Furthermore, as modifier replaced partial asphalt, satisfactory results have been achieved in road pavements [5,6].…”

Section: Introductionmentioning

confidence: 99%

Regeneration of paint sludge and reuse in cement concrete

Feng

Ji-tao²,

Liang

2018

E3S Web Conf.

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Abstract. Paint Sludge (PS) is a hazardous waste. Inappropriate disposal of PS might be harmful to public health and the environment. Various size of Paint Sludge Solid Powder (PSSP) particles have been produced by automatic processing equipment via dewatering ，crushing，screening removing Volatile Organic Compounds (VOCs), and etc. Meanwhile, the test results show that PSSP is not a hazardous waste. Both flexural and compressive strength are increased by adding PSSP of polyurethane to cement concrete at a level of below 10% of cement weight. However, the strength has a significant reduction at a level of above 15% of cement weight. The reason for the increase of strength is probably due to a slow coagulation and copolymerization of PSSP and cement. The reduction is likely due to the self-reunion of PSSP.

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“…Meanwhile, the manufacturing of environmentally clean white ceramics was proposed to neutralize hazardous PS (up to 20 wt%) in kaolin clay composites (Mymrin et al 2019 ). Dalmazzo et al ( 2017 ) tested the reuse of dried and pulverized PS as a substitute of a part of the conventional binder for the production of HMAs for paving applications. In that study, carried out with the cooperation of an Italian automotive company, the characteristics of the binders modified with PS were carefully evaluated by using rheological tests (Dalmazzo et al 2017 ).…”

Section: Introductionmentioning

confidence: 99%

“…Dalmazzo et al ( 2017 ) tested the reuse of dried and pulverized PS as a substitute of a part of the conventional binder for the production of HMAs for paving applications. In that study, carried out with the cooperation of an Italian automotive company, the characteristics of the binders modified with PS were carefully evaluated by using rheological tests (Dalmazzo et al 2017 ). The authors concluded that the addition of amounts of PS up to 20% determined only minor changes in the physical properties of asphalt binders, in terms of performance grade (PG), elastic response, stress sensitivity, fatigue resistance, and fatigue ductility of neat bitumen.…”

Section: Introductionmentioning

confidence: 99%

Cost analysis and environmental assessment of recycling paint sludge in asphalt pavements

Ruffino

Farina

Dalmazzo

et al. 2020

Environ Sci Pollut Res

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Paint sludge (PS) is a waste product coming from spray application of paints in automotive industry. For the first time, this work assessed the economic costs and environmental impacts connected to recycling PS in bituminous binders for asphalt pavement applications. Previous works have demonstrated that PS could be used as a replacement of up to 20% (w/w) of neat bitumen in the production of hot mixture asphalts (HMAs), without worsening the technical performances of pavements. The annual production of PS from Italian automotive plants (3000 t/year) could be accommodated in a paved area of 1.64 km2 that, when employed in local roads, with an average width of 5 m, corresponds to approximately 330 km. Costs for treating PS to be prepared for recycling resulted in 144 €/t raw PS. This cost was of the same order, or even less, of that required for PS incineration or disposal in a landfill for hazardous waste (250–300 €). The LCA analysis revealed that the production of HMAs by employing a binder that contains 20% (w/w) of PS, reduced the gross energy requirement (GER) and global warming potential (GWP) indexes by 15% and 39%, respectively, compared to an HMA produced with the traditional process.

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Rheological characterization and performance-related evaluation of paint sludge modified binders

Cited by 9 publications

References 13 publications

Reuse of paint sludge in road pavements: Technological and environmental issues

Reuse of paint sludge in road pavements: Technological and environmental issues

Regeneration of paint sludge and reuse in cement concrete

Cost analysis and environmental assessment of recycling paint sludge in asphalt pavements

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