Low density polyethylene for asphalt binder modification

Roja, K. Lakshmi; Rehman, Amara; Masad, Eyad; Abdala, Ahmed

doi:10.1201/9781003027362-76

Cited by 2 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To overcome this problem, polymer modification is a must to enhance viscoelastic characteristics of Egyptian bitumen, by creating an elastomeric network inside the fluid for boosting its elastic properties over its viscous properties [12]. Since cost and environmental sustainability are principal issues in civil engineering, recycled LDPE were selected as an optimum modifier [13][14][15]. It has a very suitable melting point and density for mixing [14] with bituminous materials.…”

Section: Materials Characterizationmentioning

confidence: 99%

“…As a result, AC pavement designer are forced to consider using modified binders especially, those modified by recycled polymers [12]. One of the best modifiers in this concern is the LDPE, that enhances asphalt binder high PG, with good mixing properties [13][14][15] and relatively low cost. Moreover, the difference IOP Publishing doi:10.1088/1755-1315/1056/1/012041 2 in bitumen fractional composition [16,17] for the same penetration grade, leads to a deep thinking of "Diagnosis before Treatment" concept [18], in which compatibility between bitumen and modifiers is matched, through binder testing.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Improving the Performance Grade and Traffic Loading of Egyptian Asphalt Binders by Recycled Polyethylene Modification

Eraky

Ayoub

Osman

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

Recent SUPERPAVE technology allows assessment and performance grading (PG) of modified asphalts according to AASHTO T 350–14 and ASTM D7405-15 standards. These testing protocols use modified - multiple stress creep recovery (MSCR) test, to yield the high temperature PG and the traffic level of the asphalt binder. Latest AASHTO T 350–14 test protocol is used to assess two major Egyptian bitumen products, Alex and Suez (pen 60/70) before and after polymer modification. These standard products have different fractional composition since they are obtained from different local origins. Low density polyethylene modification (LDPE) of such products leads to a major enhancement in their PGs and decreases their high temperature rutting potential. A characteristic comparison between virgin a and LDPE modified bitumen samples is provided to achieve the desired PG and traffic level for high reliability projects deployed in Egyptian hot climate regions. it was found that a 2% wt recycled LDPE modification, enhances the high temperature performance grade and the traffic grade from PG 58S-XX to PG 64S-XX for the bitumen produced by Alexandria Oil Company, and from PG 58S-XX to PG 70S-XX for the bitumen produced by Suez Oil Company.

show abstract

Section: Materials Characterizationmentioning

confidence: 99%