کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6968094 1453006 2018 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Environmental assessment of utilizing date palm ash as partial replacement of cement in mortar
ترجمه فارسی عنوان
ارزیابی محیط زیست از استفاده از خاکستر نخل به عنوان جایگزینی جزئی سیمان در ملات
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
چکیده انگلیسی
Saudi Arabia's date palm industry generates date palm ash (DPA) from the thermal processing of palm oil fibers and shells. This waste material has potential to be used as partial replacement of cement in structural mortar. However, no studies to date have examined its pollution potential. DPA was used as a cement replacement in Portland cement mortar (PCM) using a 10% and 100% replacement rate and then compared to an ordinary PCM control sample. Total elemental analysis, the toxicity characteristic leaching procedure (TCLP) and monolith leaching tests were conducted. Elemental analysis revealed a standard elemental profile similar to data for the comparably used wood ash. Aluminum (Al) and iron (Fe) were elements with the greatest abundance in DPA but no element exceeded regulatory thresholds. Leachability testing revealed that while concentrations of Al and Fe may appear high in DPA, they experience relatively low mobility when encapsulated in PCM matrices as indicated by their calculated leachability index. The results presented in this paper indicate that DPA poses no environmental risk to human health when used as cement replacement in PCM.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 357, 5 September 2018, Pages 175-179
نویسندگان
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