Some applications of nuclear magnetic resonance imaging to crumb rubber modified asphalts

Miknis, Francis P.; Michon, Laurent C.

doi:10.1016/s0016-2361(98)80029-x

Cited by 26 publications

(13 citation statements)

References 13 publications

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“…Using the NMR technique in their study of rubber-bitumen interactions, Miknis and Michon (1998) observed that oils used in tyre manufacture and oils which are present in bitumen contain similar compounds. This observation prompted them to conclude that the oils most probably exchange during heating.…”

Section: Rubber-bitumen Interactionsmentioning

confidence: 99%

Rubber modified bitumen

Gaweł

Piłat

Radziszewski

et al. 2011

Polymer Modified Bitumen

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Section: Rubber-bitumen Interactionsmentioning

confidence: 99%

Rubber modified bitumen

Gaweł

Piłat

Radziszewski

et al. 2011

Polymer Modified Bitumen

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“…However, because of the extremely complex chemical natures and compositions of asphalt and crumb rubber, it is difficult to detect the real nature of chemical bonds and material exchange during the interaction between rubber and asphalt . Asphalt is known as a colloidal suspension in which asphaltenes are dispersed in the oily maltene phase.…”

Section: Introductionmentioning

confidence: 99%

“…Crumb rubber is a complex mixture primarily comprised of natural rubber (NR) and synthetic rubber (SR), which are crosslinked with sulfur and reinforced with carbon black. Meanwhile, processing oils have been added to improve its workability and softness …”

Section: Introductionmentioning

confidence: 99%

“…10 However, because of the extremely complex chemical natures and compositions of asphalt and crumb rubber, it is difficult to detect the real nature of chemical bonds and material exchange during the interaction between rubber and asphalt. 11,12 Asphalt is known as a colloidal suspension in which asphaltenes are dispersed in the oily maltene phase. Crumb rubber is a complex mixture primarily comprised of natural rubber (NR) and synthetic rubber (SR), which are crosslinked with sulfur and reinforced with carbon black.…”

Section: Introductionmentioning

confidence: 99%

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Structural evolution of recycled tire rubber in asphalt

Yao

Zhou

Wang

2015

J of Applied Polymer Sci

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The performance of recycled-tire-rubber-modified asphalt mainly depends on the structure of rubber in the asphalt. The effects of the curing temperature, mixing time, and shearing on the evolution of the chemical structure and morphological structure of crumb rubber in asphalt were investigated. The crosslink density, compositions, and morphological evolution of the residual crumb rubber were characterized. The results show that the structure evolution of tire rubber in asphalt was greatly affected by the curing temperature. At a low curing temperature (1808C), the crosslinking network of the tire rubber was broken down, and this led to the partial dissolution of natural rubber (NR). However, at high curing temperature (2408C), the dissolution of NR, synthetic rubber, carbon black, and inorganic filler was observed. The released carbon black covered with a thin layer of bound rubber dispersed at a microstructured or nanostructured size in the asphalt.

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“…To improve bitumen and bitumen-based materials' mechanical properties and operational qualities, modifying them with polymers has been found to be an effective way by the researchers. By this method, decreased high-temperature susceptibility, improved deformation resistance, and increased resistance to low-temperature cracking can be obtained [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Modification of bitumen-based roof covering material by glass reinforced polyester recyclate

Neşer

Aytekin

2014

J Mater Cycles Waste Manag

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In boat building industry, environmental legislations promoting recycling of thermoset composites have been the main driver globally. Recycling of glassreinforced plastics (GRP), which is widely used in the industry, has been very problematic due to its inherent heterogeneous structure. Considering the urgent need of the industry, several investigations have been carried out to find the beneficial uses of GRP recyclate after mechanical recycling which is the most cost-effective technique. In this study that can be considered an effort to find proper way to recycle GRP containing polyester as the matrix, the recyclate of waste GRP boat material was adopted as modifier for bitumen-based roof covering materials. Fine grounded GRP recyclates were added to the hot bitumen mix with the dosages of 1, 3, 5, 10, 20 and 30 % as a part of roof covering material production process. Performances of the modified end product have been tested conventionally. The tests were also repeated for environmentally aged blends that contain 30 % of GRP recyclate. Results indicate that use of GRP recyclate in the modification of bitumen-based materials is an effective way to improve roof covering materials' performance in terms of temperature susceptibility in particular and has the potential to solve the recycling problems of the industry.Keywords Glass-reinforced polyester waste Á Bitumen-based roof covering material Á Boat building Á Aging

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Some applications of nuclear magnetic resonance imaging to crumb rubber modified asphalts

Cited by 26 publications

References 13 publications

Rubber modified bitumen

Rubber modified bitumen

Structural evolution of recycled tire rubber in asphalt

Modification of bitumen-based roof covering material by glass reinforced polyester recyclate

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