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International Journal of Transportation Engineering، جلد ۳، شماره ۳، صفحات ۱۷۱-۱۸۰
عنوان فارسی
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عنوان انگلیسی Toughness Performance of Recycled Aggregates for use in Road Pavement
چکیده انگلیسی مقاله The policy of driving organization such as Highways Agency is towards the use of performance related specifications. This policy and adoption of European wide aggregate standards on the one hand, and sustainable construction pressures on the other, all strongly emphasize on further need for more developments to specifications and performance assessment methodologies instead of creating barriers to the use of suitable materials. Performance related specifications for pavement foundations are being developed and are primarily based around in-situ control and compliance testing. Laboratory based tools for assessment of the performance of foundation materials and their durability under adverse conditions would be a key factor to the successful use of alternative materials. The toughness performance of recycled concrete aggregates (RCA) mixed with natural aggregates (NA) was evaluated based on the test specifications given in the NCHRP Report 598. For this purpose Los Angeles Abrasion and degradation test results were correlated with established Micro-Deval designations in NCHRP report 598.Three main factors involved in performance assessment; i.e. (a) traffic loading, (b) moisture levels in highway pavements and (c) the temperature conditions. The research study showed that the materials were appropriate for unbound subbase for medium traffic in non freezing condition from the standpoint of toughness. Also they are suitable for low traffic situations with low moisture and freezing weather.
کلیدواژه‌های انگلیسی مقاله Recycled aggregate,Toughness,Performance,Pavement
نویسندگان مقاله وحید عیان |
assistant professor, department of civil engineering, islamic azad university, islamshahr branch, islamshahr, tehran ,iran
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

علیرضا خاوندی |
assistant professor, department of civil engineering, zanjan university, zanjan, iran
سازمان اصلی تایید شده: دانشگاه زنجان (Zanjan university)

جیمز omer | j r
assistant professor, sustainable technology research center, kingston university london, uk

m c limbachiya | m c
assistant professor, sustainable technology research center, kingston university london, uk

نشانی اینترنتی http://www.ijte.ir/article_14770_adf1f241d906510965c25937ba497830.pdf
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