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M5 investigation on ternary binder incorporated with ferrochrome slag aggregate in concrete

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Abstract

This novel research pivotal, Portland cement incorporating Metakaolin (MK) and powdered Nano Silica (NS) matrix has been prepared with Manufactured Sand (Msand). M5 [Material characterization, Mix methodology, Mechanical strength, Microstructural and Monolithic tank leaching] have been investigated. MK and NS aroused a homogeneous microstructure that possesses the rich mechanical property of concrete. Precisely, 10% of MK and 1% of NS from ternary replacement is ascertained as optimum. Fine aggregate is supplanted (10, 20, 30, 40, 50 and 100%) by the weight of Msand besides Ferrochrome Slag (FeCr slag). Fresh property of the slag cluster tends down the face, owing to pore structure and surface roughness. Percentage increase of cube crushing strength on 100% slag (D4) mix is 25.55% superior to referral concrete on 28 days. High-resolution scanning electron microscope (HR-SEM) corroborates uniform Interfacial Transmission Zone (ITZ) of D4 mix related to all other mixes. Micro and nano binder with slag is speculated to form a regime matrix. 100% FeCr slag is affirmed by microscopic imaging, confirming the strength degrading is due to Low density calcium silicate hydrate [CSH(L)]. Based on the result from the 64th day leaching test, Cumulative Total Chromium (TCr) is within the US: EPA limit (< 25 mg/m2). Impressively FeCr slag supplants to Msand leads to avoiding waste landfill and keeping environmentally friendly. IR spectra in the D4 matrix show that Portlandite (CH) eradicates at 3677 cm−1 and have a tremendous aluminate–silicate hydrate (535, 873 and 966 cm−1 wavenumber). Antagonistic activity of CH and MH screws strength on D10 cluster.

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Acknowledgement

Authors are clearly acknowledged to “Anna Centenary Research Fellowships Scheme Grant No: CFR/ACRF/19131191121/AR1” of Centre for Research, Anna University, Chennai, Tamil Nadu, India. For supported financially to research.

Funding

This article was funded by Anna University (Grant no. “CFR/ACRF/19131191121/AR1” of Anna University, Chennai, Tamil Nadu, India).

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Manigandan N: Methodology, Conceptualization, Original draft writing and Editing. Ponmalar V: Investigation, Supervision and Correction.

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Correspondence to V. Ponmalar.

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Manigandan, N., Ponmalar, V. M5 investigation on ternary binder incorporated with ferrochrome slag aggregate in concrete. Appl Nanosci 12, 3925–3944 (2022). https://doi.org/10.1007/s13204-022-02615-2

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  • DOI: https://doi.org/10.1007/s13204-022-02615-2

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