کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4913079 1428757 2017 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation on mechanical properties of fly ash-ground granulated blast furnace slag based self curing bio-geopolymer concrete
ترجمه فارسی عنوان
بررسی خواص مکانیکی خاکستر ذرت خاکستر ذرت خاکستر انجماد بتن
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
Heat cured geopolymer concrete (GPC) normally catalyze the geopolymerization reaction and thereby the mechanical properties of the geopolymer concrete were improved. Because of the practical challenges in applying steam curing/heat curing process, the applications of geopolymer concrete were limited to precast elements alone. The objective of this research was to understand the positive impact of bio-additives such as Terminalia chebula and natural sugars (molasses/palm jaggery/honey) on the mechanical properties of the bio-geopolymer concrete under eco-friendly ambient curing conditions. In this study, both the bio-additives were added 0.8% by the weight of aluminosilicate minerals. Less concentrated alkaline solution (4 M sodium hydroxide) was employed. Experimental results confirmed that the bio-additives combination of Terminalia chebula and palm jaggery in fly ash-ground granulated blast furnace slag based self curing bio-geopolymer concrete improved 31.31% of compressive strength, 14.70% of splitting tensile strength, 27.59% of flexural strength when compared to control specimens cured at ambient condition for 28 days. Also the ultimate load of 83 kN and deflection of 11.99 mm was observed in load-deflection behaviour. Atomic force microscopy (AFM) studies confirmed that various surface roughness parameters were improved for bio-geopolymer concrete when compared to control specimens.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 149, 15 September 2017, Pages 338-349
نویسندگان
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