EVALUATION OF STONE MATRIX ASPHALT CREEP RESISTANCE IMPROVEMENT USING THERMOPLASTIC ELASTOMER POLYMERS AND PMA MIXTURE METHOD

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ZIARI H.; IMANINASAB R.; KHANI SANIJ H.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Paper Information

Journal: JOURNAL OF TRANSPORTATION RESEARCH Year:2016 | Volume:12 | Issue:4 (45) Page(s): 289-299

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Title

EVALUATION OF STONE MATRIX ASPHALT CREEP RESISTANCE IMPROVEMENT USING THERMOPLASTIC ELASTOMER POLYMERS AND PMA MIXTURE METHOD

Author(s)

ZIARI H. | IMANINASAB R. | KHANI SANIJ H. | Issue Writer Certificate

Keywords

STONE MATRIX ASPHALTQ2

ELASTOMER THERMOPLASTIC POLYMERSQ2

POLYMER MODIFIED ASPHALTQ2

DYNAMIC CREEP TESTQ2

Abstract

STONE MATRIX ASPHALT is one of the solutions for rutting used worldwide. By providing stone on stone contact, the coarse portion of this type of mixtures bear the loads of axles and transfer them to the lower layer. The mixture of fine aggregate, filler, bitumen and additive including fiber and polymers are to fill the air void of coarse aggregate. Bitumen must hold the coarse aggregates together. As the typical bitumen is not capable of doing so, the use of additive polymers seems essential. Additives consist of fiber and polymers. In order to prevent drain down while fabricating, cellulose fiber is used. The application of elastomer-thermoplastic polymers causes the improvement of rutting resistance in high temperature. Elastomeric properties make the deformations recoverable and thermoplastic properties broaden the performance grade of bitumen. Polyethylene and ethylene-vinyl-acetate copolymers are selected in dosage of 3, 5, 7 and 4, 8, 12 percent, respectively. These polymers could be directly added to the mixture which is a common method to use them in Iran. By applying 50oC as the ambient temperature and 450KPa as the level of the stress for creep tests, while considering high temperature condition, the most severe condition of loading is simulated. Comparing the result of unconfined creep test which is performed on the modified and unmodified specimen, concluded that polyethylene and unmodified specimen has the same creep performance while 8 and 12 percent ethylene-vinyl-acetate has the same creep result as 4 and 6 styrene-butadiene-styrene specimens, respectively.

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APA: Copy

ZIARI, H., IMANINASAB, R., & KHANI SANIJ, H.. (2016). EVALUATION OF STONE MATRIX ASPHALT CREEP RESISTANCE IMPROVEMENT USING THERMOPLASTIC ELASTOMER POLYMERS AND PMA MIXTURE METHOD. JOURNAL OF TRANSPORTATION RESEARCH, 12(4 (45)), 289-299. SID. https://sid.ir/paper/83861/en

Vancouver: Copy

ZIARI H., IMANINASAB R., KHANI SANIJ H.. EVALUATION OF STONE MATRIX ASPHALT CREEP RESISTANCE IMPROVEMENT USING THERMOPLASTIC ELASTOMER POLYMERS AND PMA MIXTURE METHOD. JOURNAL OF TRANSPORTATION RESEARCH[Internet]. 2016;12(4 (45)):289-299. Available from: https://sid.ir/paper/83861/en

IEEE: Copy

H. ZIARI, R. IMANINASAB, and H. KHANI SANIJ, “EVALUATION OF STONE MATRIX ASPHALT CREEP RESISTANCE IMPROVEMENT USING THERMOPLASTIC ELASTOMER POLYMERS AND PMA MIXTURE METHOD,” JOURNAL OF TRANSPORTATION RESEARCH, vol. 12, no. 4 (45), pp. 289–299, 2016, [Online]. Available: https://sid.ir/paper/83861/en

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