کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
256686 503561 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Laboratory processing of Colombian rice husk for obtaining amorphous silica as concrete supplementary cementing material
ترجمه فارسی عنوان
پردازش آزمایشگاهی پوسته برنج کلمبیا برای به دست آوردن سیلیس آمورف به عنوان مواد سیمان اضافی بتن
کلمات کلیدی
خاکستر پوسته برنج، سیلیس آمورف، مکمل سیمان، صنعت پایدار، 23 طراحی فاکتوریل
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی


• Is evaluated the physical and chemical analyses of Colombian’s RHA.
• A laboratory research methodology is presented for obtain concrete mixtures.
• The best result obtained was: AT, type II (650 °C), GT (240 min) and CRP 40%.

Rice husk is an agro-industrial waste with few applications. However, its elevated amorphous silica content has turned it into a promising raw material, especially due to its possibility to be transformed into a cement supplement for concrete mixtures. Investigating plant materials as new sources of high quality amorphous silica has a number of important advantages resulting in a process that may involve fewer steps than usual. Determining the suitability of the specific silica materials obtained from Colombian rice husk ash for them to be used in concrete mixtures involves the assessment of several features such as percentage of amorphous silica, particle size, surface area and specific gravity. The current work focused on the laboratory ash production process, whose appropriate temperature, grinding and burning time conditions were assessed through their effect on the compressive strength of concrete cylinders supplemented with the obtained materials. This, in turn, ensures obtaining an elevated percentage of amorphous silica and provides an adequate conceptual framework for industrial production.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 96, 15 October 2015, Pages 65–75
نویسندگان
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