کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
261121 503683 2008 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Diversifying two-stage mixing approach (TSMA) for recycled aggregate concrete: TSMAs and TSMAsc
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Diversifying two-stage mixing approach (TSMA) for recycled aggregate concrete: TSMAs and TSMAsc
چکیده انگلیسی

Recycling demolished concrete as recycled aggregate can be applicable to most construction applications. Lower-grade applications, including sub-base and roadwork, have been practicing in many countries; however, higher-grade activities are rarely discussed. This paper develops two mixing approaches by adding silica fume into certain percentages of Recycled Aggregate (RA) in the pre-mix procedure, named as two-stage mixing approach(silica fume) (TSMAs) and adding silica fume and proportional amounts of cement into certain percentages of RA in the first mix, named as two-stage mixing approach(silica fume and cement) (TSMAsc). Experimentation highlights that improvements have been recorded resulted from the use of various RA percentages from both TSMAs and TSMAsc. The additions of silica fume and proportional cement content in the pre-mix on TSMAs and TSMAsc can fill up the weak areas in the RA and thus develop a stronger interfacial layer around aggregate, and hence a higher strength of the concrete. It, thus, concludes that TSMAs and TSMAsc can provide alternative methodologies for further improvement in quality of this recyclable material.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 22, Issue 10, October 2008, Pages 2068–2077
نویسندگان
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