2022
DOI: 10.1016/j.conbuildmat.2022.127488
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Performances of rubber asphalt with middle/high content of waste tire crumb rubber

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Cited by 36 publications
(12 citation statements)
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“…Clearly, the penetration of asphalt can be reduced, and the softening point of asphalt can be raised by adding WTR or SSP. With the same content of WTR and SSP, the penetration and softening point of WTR-modified asphalt changed more prominently, which may be attributed to the three-dimensional network structure formed by WTR, which limits the flow of asphalt [20,37]. This phenomenon occurs in SSP-modified asphalt because the porous structure of steel slag absorbs the components of asphalt, which leads to a decrease in free asphalt and an increase in structural asphalt [30].…”
Section: Physical Propertiesmentioning
confidence: 98%
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“…Clearly, the penetration of asphalt can be reduced, and the softening point of asphalt can be raised by adding WTR or SSP. With the same content of WTR and SSP, the penetration and softening point of WTR-modified asphalt changed more prominently, which may be attributed to the three-dimensional network structure formed by WTR, which limits the flow of asphalt [20,37]. This phenomenon occurs in SSP-modified asphalt because the porous structure of steel slag absorbs the components of asphalt, which leads to a decrease in free asphalt and an increase in structural asphalt [30].…”
Section: Physical Propertiesmentioning
confidence: 98%
“…The stiffness modulus S and creep rate m of asphalt tested by BBR under constant loading are used to evaluate the low-temperature performance of asphalt [11,20]. Asphalt sample size was 127 × 6.35 × 12.7 mm.…”
Section: Low-temperature Performance Testsmentioning
confidence: 99%
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“…Its application as a modifier in bituminous mixtures permits the recovery of this waste in huge quantities, helping to contribute to circular economy principles (around 1000 tires could be reused per kilometer of road, when using a bituminous mixture modified with 0.5% of its total weight and a thickness layer of 6 cm). In addition, many laboratory studies have demonstrated that the use of crumb rubber as a modifier of asphalt mixtures improves their resistance to fatigue cracking [ 8 , 9 ] and to plastic deformation [ 10 ], reduces their ageing [ 11 ], increases their durability [ 12 , 13 ] or minimizes the rolling noise [ 14 , 15 ]. Thus, this method of valorization can result in more durable road pavements, with less need for maintenance, which contributes to the more sustainable and effective management of natural, economic and energy resources.…”
Section: Introductionmentioning
confidence: 99%
“…Therefore, the application of crumb rubber is not common under these circumstances. In addition, there is some skepticism about its workability in cold climates [ 27 ], its stability to form an homogeneous blend [ 8 ] or its skid resistance [ 28 ], as well as about its economic and environmental viability [ 29 ].…”
Section: Introductionmentioning
confidence: 99%