کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
256210 503543 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The properties and mechanism of microbial mineralized steel slag bricks
ترجمه فارسی عنوان
خواص و مکانیزم آجر سرباره فولادی معدنی میکروبی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی


• Preparation of microbial mineralized steel slag bricks is at room temperature, gas pressure is just 0.3 MPa, no molding pressure.
• Calcium carbonate is the gelled product through microbial mineralization.
• Utilize the industrial waste steel slag and absorb the industrial carbon dioxide.

An experimental program was carried out to investigate the possibility of producing microbial mineralized steel slag bricks through mineralization. The properties of different steel slag bricks such as strength and carbon uptake were mainly investigated. Mineralization could significantly improve the strength, the optimal SL/SS ratio for the microbial mineralized steel slag bricks is 0.3. Through 3-h mineralization after demoulded, the highest compressive strength of the steel slag bricks can up to 17.1 MPa, flexural strength up to 4.22 MPa. Through X-ray diffraction (XRD), mercury-intrusion porosimetry (MIP), scanning electron microscopy (SEM), and differential thermal and thermogravimetric analysis (DTA/TG), the mechanism of the microbial mineralized steel slag bricks was analyzed and discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 113, 15 June 2016, Pages 815–823
نویسندگان
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