NDLI: Organically modified concrete waste with oleic acid : Preparation and characterization

Content Provider	Springer Nature Link
Author	Ramos, F. J. H. T. V. Mendes, L. C. Cestari, S. P.
Copyright Year	2015
Abstract	The aim of this study is to modify demolition concrete waste (CW) with oleic acid (OA), to be used as filler in polymeric composites for the building industry. The OA was chosen in order to ease the mixing of the CW into the polymeric matrix. In this article, we report the preparation and characterization of this CW–OA filler. After crushing and sifting, the CW particles were chemically modified with OA via sonication. The results of the modification were assessed using X-ray fluorescence, Fourier transform infrared spectroscopy, thermogravimetry, differential scanning calorimetry, wide angle X-ray diffraction, and scanning electron microscopy coupled with energy-dispersive X-ray detector. The FT-IR spectrum revealed that the OA was bonded to the surface of the CW particles by the carboxylate group. The TG/DTG curves showed an increase in the thermal stability of the OA, due to this bonding on the CW surface. The SEM and EDX analysis showed the insertion of OA on the CW surface. The results suggest that the proposed CW–OA modification was successful. This material can be used as an interesting eco-friendly filler in polymeric composites.
Starting Page	1895
Ending Page	1904
Page Count	10
File Format	PDF
ISSN	13886150
Journal	Journal of thermal analysis
Volume Number	119
Issue Number	3
e-ISSN	15882926
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-01-28
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Concrete waste Surface modification Oleic acid Thermal analysis Physical Chemistry Analytical Chemistry Polymer Sciences Inorganic Chemistry Measurement Science and Instrumentation
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry Condensed Matter Physics

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