Prediction model for hardened state properties of silica fume and fly ash based seawater concrete incorporating silicomanganese slag
نویسندگان
چکیده
Growing concrete consumption has gradually depleted conventional resources. This research incorporates silicomanganese (SiMn) slag, marine sand and seawater as alternative concreting materials. The use of SiMn slag to replace limestone coarse aggregate enhances sustainability, though reducing strength durability concrete. aims enhance the by incorporating silica fume (SF) fly ash (FA). interaction SF FA on strength, workability is investigated statistically evaluating experimental result. In this regard, polynomial function prediction model developed using Response Surface Method (RSM) for optimization contents. Analysis variance (ANOVA) p-value at significance level 0.05 showed that models were significant had marginal residual errors. All high fitness with R2 value ranging from 0.853 0.999. Adequate precision was above 4, indicating a low error fit optimization. Optimization indicated combination 11.5% 16.3% produced met criteria. Experimental validation highest 3.4% compressive 3.2% tensile 4.9% sorptivity 18% chloride permeability. optimized exhibited compact microstructure good bonding between cement paste. By established linear equation concrete, also predicted containing an 0.9% 5.4%.
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ژورنال
عنوان ژورنال: Journal of building engineering
سال: 2021
ISSN: ['2352-7102']
DOI: https://doi.org/10.1016/j.jobe.2021.102356