کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4928140 1432018 2017 30 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of lime stabilization on the mechanical and micro-scale properties of recycled demolition materials
ترجمه فارسی عنوان
اثر تثبیت آهک بر خواص مکانیکی و میکرو مقیاس مواد تخریب بازیافت شده
کلمات کلیدی
اهک، مواد تخریب، پایدارسازی، مدول انعطاف پذیر، بازیافت،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
Sustainable reuse options for Construction and Demolition (C&D) materials in civil engineering applications have been an emerging topic in recent years. Crushed Brick (CB), Recycled Crushed Concrete (RCA) and Reclaimed Asphalt Pavement (RAP) comprise a major fraction of the wastes going to landfills. This research investigates the performance of lime stabilized C&D materials as road materials. Tests were undertaken on unbound and lime stabilized C&D materials with 1% to 5% hydrated lime. The laboratory investigation included particle size distribution, California Bearing Ratio, modified Proctor compaction, Repeated Load Triaxial (RLT) test and Unconfined Compressive Strength (UCS) tests. The effect of temperature curing, up to 40 °C was investigated and compared to ambient temperature. The resilient modulus results indicated that the lime stabilized RCA and CB were viable options for construction of subbase layers of pavement while RAP did not meet the requirements of a road construction material. UCS values of RCA and CB met the minimum requirement for cementitious materials after 7 days of curing. In addition to evaluating the mechanical properties, micro-scale analyses were also conducted using Scanning Electron Microscope (SEM) and Energy-Dispersive X-ray Spectroscopy (EDS) to understand the behavior of the lime stabilization of C&D materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sustainable Cities and Society - Volume 30, April 2017, Pages 58-65
نویسندگان
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