Significance of properly proportioned fly ash based blended cement for sustainable concrete structures of tannery industry

نویسندگان

چکیده

Tannery wastewater contains several detrimental constituents that severely affect concrete durability. It can also cause soil and water pollution from discharge of untreated effluent if not properly contained. Therefore, ensuring proper protection tannery treatment plants is extreme importance to prevent leaching hazardous wastewater. Properly proportioned blended cement usually required for construction ensure structural stability. However, there no definite guideline available mix design structures exposed In this study, effect adding different proportions two industrial wastes i.e. fly ash granulated blast furnace slag with ordinary Portland (OPC) as supplementary cementitious material (SCM) has been investigated under conditions. A total 240 cubes 48 mortar bars were prepared tested normal simulated The performance was measured in terms compressive strength, expansion, weight loss, surface deterioration etc. Scanning Electron Microscope (SEM) images Energy-dispersive X-ray Spectroscopy (EDS) techniques used observe changes microstructure. Test results revealed composites and/or suffered less strength loss compared OPC samples. only exhibited desired expansion test. addition, SEM EDS analyses confirmed lower density ettringite calcium mixes due pore refinement caused by formation secondary hydration products.

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ژورنال

عنوان ژورنال: Structures

سال: 2021

ISSN: ['2352-0124']

DOI: https://doi.org/10.1016/j.istruc.2020.12.065