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Multi-Scale Study on Mechanical Property and Strength of New Green Sand (Poly Lactic Acid) as Replacement of Fine Aggregate in Concrete Mix

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School of Mechanical Engineering, KLE Technological University, Hubli 580031, India
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School of Civil and Environmental Engineering, B.V.B. College of Engineering and Technology, KLE Technological University, Hubli 580031, India
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Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
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Department of Mechanical Engineering, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia
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Author to whom correspondence should be addressed.
Symmetry 2020, 12(11), 1823; https://doi.org/10.3390/sym12111823
Received: 21 September 2020 / Revised: 23 October 2020 / Accepted: 29 October 2020 / Published: 3 November 2020
(This article belongs to the Section Chemistry and Symmetry/Asymmetry)
Polylactic acid (PLA) has made inroads in the commercial market segment with many unique characteristics. To list a few, such as tenacity, low flame rate, moisture regain percentage, loss of ignition percentage, combustion heat, UV resistance, elastic recovery, and higher melting point, make PLA a predominant material in the commercial market. This study is an attempt to test the feasibility of PLA’s mechanical property and strength aspects with cement mix. An article published on biodegradability aspects backed up by the essential preliminary strength and physical test results is discussed in detail in this manuscript. The work focuses on the multi-scale study along with mechanical properties and strengths to evaluate the elemental characteristics. Thermo gravimetric analysis revealed that PLA would hold inclusion into construction applications either in granular form or filament. Differential Scanning Calorimetry (DSC) found that PLA in filament form is the best inclusion material for construction applications. However, fiber’s tenacity has to be checked, as currently available filaments in the market do not have high tenacity value. From EDX(Energy-dispersive X-ray Spectroscopy) reports, 30% inclusion of PLA as a replacement for fine aggregate has constituent members as Calcium carbonate(CaCO3), Silica(SiO2), and Wollastonite (CaK) resulted in the best composition among the rest. FESEM images revealed that proper gradation in size, PLA granular form’s rough surface, or filament form would enhance the mechanical/physical behavior or even PLA’s chemical behavior. View Full-Text
Keywords: poly lactic acid(PLA); TGA; FTIR; DSC; FESEM; EDX poly lactic acid(PLA); TGA; FTIR; DSC; FESEM; EDX
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MDPI and ACS Style

Patil, A.Y.; Banapurmath, N.R.; E. P., S.; Chitawadagi, M.V.; Khan, T.M.Y.; Badruddin, I.A.; Kamangar, S. Multi-Scale Study on Mechanical Property and Strength of New Green Sand (Poly Lactic Acid) as Replacement of Fine Aggregate in Concrete Mix. Symmetry 2020, 12, 1823. https://doi.org/10.3390/sym12111823

AMA Style

Patil AY, Banapurmath NR, E. P. S, Chitawadagi MV, Khan TMY, Badruddin IA, Kamangar S. Multi-Scale Study on Mechanical Property and Strength of New Green Sand (Poly Lactic Acid) as Replacement of Fine Aggregate in Concrete Mix. Symmetry. 2020; 12(11):1823. https://doi.org/10.3390/sym12111823

Chicago/Turabian Style

Patil, Arun Y.; Banapurmath, N. R.; E. P., Sumukh; Chitawadagi, Manojkumar V.; Khan, T. M.Y.; Badruddin, Irfan A.; Kamangar, Sarfaraz. 2020. "Multi-Scale Study on Mechanical Property and Strength of New Green Sand (Poly Lactic Acid) as Replacement of Fine Aggregate in Concrete Mix" Symmetry 12, no. 11: 1823. https://doi.org/10.3390/sym12111823

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