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us7772302b2 incorporation of plastic scrap in asphalt

us7772302b2 incorporation of plastic scrap in asphalt

US7772302B2 - Incorporation of plastic scrap in asphalt ...

Scrap plastic is treated for incorporation into asphalt-aggregate compositions by first shredding the plastic, then heating the shredded plastic to harden any pieces of film or flexible plastic and to generally reduce the size of the shreds without decomposing the plastic, and then grinding the heat-treated pieces to a size that can be blended with an aggregate.

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Replacement of stabilizers by recycling plastic in asphalt ...

2019-1-1  Incorporation of waste plastic bottles (PET) at various percentages (2%, 4%, 6%, 8% and 10% by weight of asphalt) in aggregates-asphalt blend was effective in retarding the drain down and improved mixture's Marshall characteristics, stiffness, and resistance against permanent deformation (Ahmadinia et al., 2011, Ahmadinia et al., 2012).

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Use of Recycled Plastic in Asphalt and Concrete

2020-12-3  plastics in asphalt, and commercial supplier claims of strength and other benefits of the use of plastic in paving materials require further review. Other issues for further review, particularly domestically, include the environmental impacts associated with the potential for plastic used in asphalt to move from the roadway into the environment.

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Utilization of scrap plastics in asphalt binders ...

2020-1-1  The base binders were also blended for 2 h at 350°F to avoid the temperature impact. In addition, two Styrene-Butadiene-Styrene (SBS)-modified binders (PG 76-22) and two rubberized asphalt binders were used, for comparison purposes, in this study. The experimental design for this research study is shown in Fig. 2.4.

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Recent trends in utilization of plastics waste composites ...

2021-2-15  The incorporation of a small portion of plastic to the traditional construction materials like concrete, asphalt, and sand has been reported by various researchers and is currently in use. Few studies discussed the usage of the high ratio of plastic with traditional construction materials which will open the scope for furthering the research in ...

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04 Value-added Application of Waste Plastic Additives in ...

2017-8-21  Waste plastic is a major category of municipal solid waste in Hong Kong and presents a significant challenge in disposal. This study develops an innovative approach to use waste plastic additives in pavement mixtures containing reclaimed asphalt pavement (RAP), which is also a waste material classified as construction waste.

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Polymer modified asphalt - researchgate

The incorporation of SBS decreases asphalt binder penetration values and increases the softening point temperatures, which justifies an increased stiffness and reduced thermal susceptibility, as ...

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Recycling Tire Rubber in Asphalt Pavements: State of the Art

The use of recycled tire rubber in asphalt pavements to improve the overall performance, economy, and sustainability of pavements has gained considerable attention over the last few decades. Several studies have indicated that recycled tire rubber can reduce the

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FAQ - Rumber Materials

Crumb rubber modifier (CRM) added to the hot asphalt mixture using the dry process. Rubber Modified Asphalt. A general term used to identify the incorporation of scrap tire rubber into asphalt paving materials. Rubberized Asphalt. Asphalt cement modified with crumb rubber modifier (CRM) at less than 15 percent by total weight of the asphalt cement.

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The waste transparent nylon modified bitumen properties ...

2021-10-11  3. Research methodology3.1. Modification process. The modification process was designed in the light of the earlier studies focused on polymer , , , and nylon , , , modified bitumen and the following listed steps were taken into consideration.. WTN samples were collected from waste storage area at the end of the exam.

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Use of plastic scrap in asphalt mixtures added by dry ...

2019-3-15  An alternative use of this plastic scrap is its incorporation in asphalt mixtures as a durability improver. Asphalt mixtures are composed of aggregates and asphalt binder, which is a derivative of petroleum, as well as additives (Lesueur, 2009). Asphalt mixture behaviour varies according to two major parameters—climatic conditions and the ...

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Use of Recycled Plastic in Asphalt and Concrete

2020-12-3  plastics in asphalt, and commercial supplier claims of strength and other benefits of the use of plastic in paving materials require further review. Other issues for further review, particularly domestically, include the environmental impacts associated with the potential for plastic used in asphalt to move from the roadway into the environment.

get price

Use Of Waste Plastic And Tyre Pyrolytic Char In Asphalt ...

Fig. 1: A Dump of Waste Plastic in the Pacific Ocean (Source: Galey And Hood, 2018) Waste tyre disposing is a difficult task, since landfill disposal has been banned in several countries (Martinez et al., 2013), and incineration leads to harmful emissions (dioxins, particulate matter, volatile organic compounds, polycyclic aromatic hydrocarbons) (Mastral et al., 1999; Levendis et al., 1996 ...

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Recent trends in utilization of plastics waste composites ...

2021-2-15  The incorporation of a small portion of plastic to the traditional construction materials like concrete, asphalt, and sand has been reported by various researchers and is currently in use. Few studies discussed the usage of the high ratio of plastic with traditional construction materials which will open the scope for furthering the research in ...

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Production of a sustainable paving material through ...

Overall, the results indicated that the collective usage of waste PET derived additives and scrap tyre rubber in asphalt not only helps recycle waste plastic and rubber, but also improves the engineering properties of asphalt pavement.

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Potential Use of Plastic Waste Materials in Pavement ...

2021-2-12  Plastic waste has recently gained global popularity in the road building industry. The incorporation of different types of plastic waste have been investigated on the performance of the subgrade soil, on stabilizing embankments as well as on the influences of different grades of bitumen binders and hot asphalt mixes (HMA).

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Use of recycling agents in asphalt mixtures with high ...

The use of reclaimed asphalt pavement (RAP) to substitute new construction materials has become an important research topic (Antunes et al., 2019; Kaseer et al., 2019) with the potential for ...

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Method for recycling plastic into cementitions building ...

The incorporation of plastics into building materials has been described in the prior art. For example, the improvement of an asphalt composition by inclusion therein of a prepared organic or plastic material is shown in U.S. Pat. Nos. 3,418,402, issued on Dec. 24, 1968 to Robert R. Grissom et al., and 3,778,397, issued on Dec. 11, 1973 to ...

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FAQ - Rumber Materials

Crumb rubber modifier (CRM) added to the hot asphalt mixture using the dry process. Rubber Modified Asphalt. A general term used to identify the incorporation of scrap tire rubber into asphalt paving materials. Rubberized Asphalt. Asphalt cement modified with crumb rubber modifier (CRM) at less than 15 percent by total weight of the asphalt cement.

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MATERIAL SPECIFICATION FOR AGGREGATES - HOT MIX

Reclaimed Asphalt Pavement (RAP) means the processed HMA material that is recovered by partial or full depth removal. Referee Testing means testing of a material property or attribute for the purpose of resolving acceptance. Roof Shingle Tabs (RST) means ground roof shingle scrap generated when new shingles are trimmed during production.

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Use of plastic scrap in asphalt mixtures added by dry ...

2019-3-15  An alternative use of this plastic scrap is its incorporation in asphalt mixtures as a durability improver. Asphalt mixtures are composed of aggregates and asphalt binder, which is a derivative of petroleum, as well as additives (Lesueur, 2009). Asphalt mixture behaviour varies according to two major parameters—climatic conditions and the ...

get price

Dow incorporates recycled plastic into Michigan roads and ...

2021-6-13  Enabled by Dow ELVALOY™ asphalt modification technology, these projects achieve the following: Use more than 10,400 lbs. of recycled plastics, equivalent in weight to more than 769,500 plastic grocery bags. Cover 5.5 lane miles of asphalt roads and 30,500 square yards of parking surface. When combined with the Freeport, Texas pilot earlier ...

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Use Of Waste Plastic And Tyre Pyrolytic Char In Asphalt ...

Fig. 1: A Dump of Waste Plastic in the Pacific Ocean (Source: Galey And Hood, 2018) Waste tyre disposing is a difficult task, since landfill disposal has been banned in several countries (Martinez et al., 2013), and incineration leads to harmful emissions (dioxins, particulate matter, volatile organic compounds, polycyclic aromatic hydrocarbons) (Mastral et al., 1999; Levendis et al., 1996 ...

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Impact of Ageing and Moisture Damage on the Fracture ...

In this research, the use of plastic scrap added by dry method was evaluated as a replacement for bitumen in asphalt mixtures. Two sizes of plastic scrap, coarse and fine, were considered. An ...

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Method for recycling plastic into cementitions building ...

The incorporation of plastics into building materials has been described in the prior art. For example, the improvement of an asphalt composition by inclusion therein of a prepared organic or plastic material is shown in U.S. Pat. Nos. 3,418,402, issued on Dec. 24, 1968 to Robert R. Grissom et al., and 3,778,397, issued on Dec. 11, 1973 to ...

get price

Use of recycling agents in asphalt mixtures with high ...

The use of reclaimed asphalt pavement (RAP) to substitute new construction materials has become an important research topic (Antunes et al., 2019; Kaseer et al., 2019) with the potential for ...

get price

Recycling Tire Rubber in Asphalt Pavements: State of the Art

The use of recycled tire rubber in asphalt pavements to improve the overall performance, economy, and sustainability of pavements has gained considerable attention over the last few decades. Several studies have indicated that recycled tire rubber can reduce the

get price

Standard Volume-to-Weight Conversion Factors

2006-2-28  Film plastics, baled 30" x 42" x 48" 1,100 MN STATE Film plastics, baled semi-trailer load 44,000 MN STATE Film plastics, tightly packed by hand 12" x 12" x 12" 3 MN STATE Film plastics, loose and uncompacted 1 cubic yard 85 MN STATE HDPE 10–12 fluid oz. 0.05 U.S. EPA HDPE beverage case 1.2 U.S. EPA

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A study on the suitability of solid waste materials in ...

2020-12-6  This paper describes the various ways in which huge volumes of waste formed from urban and semi-urban areas can be optimally reutilized as an additive in the construction of bituminous pavements. It shows that different waste materials like scrap tyres, plastic wastes, glass, coal waste, fly ash, concrete waste, wood waste, etc. can be effectively reused in bituminous pavement construction.

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MATERIAL SPECIFICATION FOR AGGREGATES - HOT MIX

Reclaimed Asphalt Pavement (RAP) means the processed HMA material that is recovered by partial or full depth removal. Referee Testing means testing of a material property or attribute for the purpose of resolving acceptance. Roof Shingle Tabs (RST) means ground roof shingle scrap generated when new shingles are trimmed during production.

get price