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A platform for research: civil engineering, architecture and urbanism
Laboratory investigation of aged HDPE-modified asphalt mixes
Abstract High density polyethylene has been utilized by many for asphalt binder/mix modification. This paper examines: (1) the effect of laboratory aging process at temperature of 100°C and at two aging levels between 48 and 96 h on dense-graded asphalt and stone mastic asphalt mixes with and without 5% high density polyethylene by characterizing Marshall stability, Marshall Quotient, indirect tensile strength, tensile strength ratio, and resilient modulus; and (2) the engineering characteristics, such as penetration, ductility, softening point, loss of heat and air (aging), temperature susceptibility, and uniformity of high density polyethylene-modified asphalt. The test results of high density polyethylene-dense-graded asphalt mixes show higher indirect tensile strength, tensile strength ratio, and resilient modulus, and lower Marshall stability, and Marshall Quotient than high density polyethylene-stone mastic asphalt mixes. The asphalt/ high density polyethylene binder test results show higher softening point, more resistance to temperature and aging, and a good compatibility.
Laboratory investigation of aged HDPE-modified asphalt mixes
Abstract High density polyethylene has been utilized by many for asphalt binder/mix modification. This paper examines: (1) the effect of laboratory aging process at temperature of 100°C and at two aging levels between 48 and 96 h on dense-graded asphalt and stone mastic asphalt mixes with and without 5% high density polyethylene by characterizing Marshall stability, Marshall Quotient, indirect tensile strength, tensile strength ratio, and resilient modulus; and (2) the engineering characteristics, such as penetration, ductility, softening point, loss of heat and air (aging), temperature susceptibility, and uniformity of high density polyethylene-modified asphalt. The test results of high density polyethylene-dense-graded asphalt mixes show higher indirect tensile strength, tensile strength ratio, and resilient modulus, and lower Marshall stability, and Marshall Quotient than high density polyethylene-stone mastic asphalt mixes. The asphalt/ high density polyethylene binder test results show higher softening point, more resistance to temperature and aging, and a good compatibility.
Laboratory investigation of aged HDPE-modified asphalt mixes
Ibrahim, Al-Hadidy A. (author)
International Journal of Pavement Research and Technology ; 12 ; 364-369
2019-07-01
6 pages
Article (Journal)
Electronic Resource
English
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