کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7885129 | 1509738 | 2016 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnesium-based cements for CO2 capture and utilisation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Magnesium from reject desalination brine is reacted at atmospheric pressure and 25-65 °C with CO2 from industrial effluent combustion gas, precipitating preferably nesquehonite, MgCO3.3H2O. Nesquehonite can be thermally activated so that, when remixed with water, it is self-cementing. At ambient temperature, cure durations are typically ~ 1-3 days. The nesquehonite-based product contains ~ 32 wt% sequestered carbon dioxide and, at end of use, can be recycled without loss of CO2. As an application example, cast nesquehonite products are suitable to form lightweight, incombustible building materials with densities in the range 700-900 kg/m3. Compressive strengths of the cast products are low, ca 2-4 MPa, thus application is envisaged to be broadly similar to that of gypsum-based products.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Research - Volume 85, July 2016, Pages 183-191
Journal: Cement and Concrete Research - Volume 85, July 2016, Pages 183-191
نویسندگان
Jennie Morrison, Guillaume Jauffret, Jose Luis Galvez-Martos, Fredrik P. Glasser,