A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Moisture-Induced Damage Evaluation of Nanopolymer-Modified Binder in Stone Mastic Asphalt (SMA) Mixtures
Abstract This paper presents laboratory investigation on mix design and moisture-induced damage performance of nanopolymer-modified asphalt binder SMA mixture. The effect of nanopolyacrylate (NP) in the mixture was investigated using Marshall mix design and modified Lottman test. Nanopolyacrylate polymer-modified binder was prepared with addition of 0–6 % NP polymer by weight into asphalt binder. Results of SMA14 mixture showed that all the volumetric properties of the mixtures passed the Marshall requirement, which indicates that these mixtures were good with respect to durability and flexibility. The ITS of NC2% and NC4% mixtures increased with an increase in percentage of NP but not as good as the conventional mixture, NC0% which is added with PG76 polymer-modified binder. However, NC6% mixture showed higher tensile strength compared to PG76 modified binder. Results of the moisture-induced damage showed that all the mixes passed the AASHTOT283 criteria with TSR values greater than 80 %. The results also showed that the optimum NP obtained is 6 % by weight of asphalt binder is the most effective and potential proportion to improve moisture-induced damage performance. Thus, addition of nanopolyacrylate polymer to the binder has significantly improved the cohesion as well as adhesion properties of the binder, and hence the performance of stripping.
Moisture-Induced Damage Evaluation of Nanopolymer-Modified Binder in Stone Mastic Asphalt (SMA) Mixtures
Abstract This paper presents laboratory investigation on mix design and moisture-induced damage performance of nanopolymer-modified asphalt binder SMA mixture. The effect of nanopolyacrylate (NP) in the mixture was investigated using Marshall mix design and modified Lottman test. Nanopolyacrylate polymer-modified binder was prepared with addition of 0–6 % NP polymer by weight into asphalt binder. Results of SMA14 mixture showed that all the volumetric properties of the mixtures passed the Marshall requirement, which indicates that these mixtures were good with respect to durability and flexibility. The ITS of NC2% and NC4% mixtures increased with an increase in percentage of NP but not as good as the conventional mixture, NC0% which is added with PG76 polymer-modified binder. However, NC6% mixture showed higher tensile strength compared to PG76 modified binder. Results of the moisture-induced damage showed that all the mixes passed the AASHTOT283 criteria with TSR values greater than 80 %. The results also showed that the optimum NP obtained is 6 % by weight of asphalt binder is the most effective and potential proportion to improve moisture-induced damage performance. Thus, addition of nanopolyacrylate polymer to the binder has significantly improved the cohesion as well as adhesion properties of the binder, and hence the performance of stripping.
Moisture-Induced Damage Evaluation of Nanopolymer-Modified Binder in Stone Mastic Asphalt (SMA) Mixtures
Shaffie, E. (author) / Ahmad, J. (author) / Arshad, A. K. (author) / Kamarun, D. (author)
InCIEC 2015 ; 947-957
2016-01-01
11 pages
Article/Chapter (Book)
Electronic Resource
English
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