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۱Comparative Study of Asphalts Modified by SBS and LDPE (LD–LH0075)
نویسنده(ها): ، ، ،
اطلاعات انتشار: نهمین کنگره بین المللی مهندسی عمران، سال
تعداد صفحات: ۴
In order to study the performance of SBS modified asphalt and the low–density polyethylene (LDPE), one type of SBS and LDPE and one kind of base asphalts are selected according to SHRP index, and performances of combination of modified asphalt at different percents are evaluated. The properties of the LDPE–modified bitumen and asphalt mixtures were compared to different contents of styrene–butadiene–styrene (SBS) modified–bitumen. The tests showed that to achieve the same performance, as with SBS–modification, the LDPE–content must be used a bit higher than SBS. 6%–LDPE(LD–LH0075) modification was determined as the most suitable content according to both binder and mixture tests. But LPDE is an internal(Iran) production and a very cheap polymer by comparison with SBS<\div>
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