Communication science et technologie
Volume 14, Numéro 1, Pages 92-102
2016-01-01

Destructive And Non-destructive Tests Of Pet-mortar Composites: Characterization By Tg/dtg Analysis



Authors : Ahmed Soufiane Benosman . Hamed Taïbi . Mohamed Mouli . Yassine Senhadji . Ilies Bahlouli .

Abstract

Abstract—This paper describes an innovative use of plastic bottle waste as cement-substitution within composite materials for preventing chemical attacks or repairing various reinforced concrete structures. So, the polymer-mortar composites have been produced by using polyethylene terephthalate waste (PET) at 0%, 2.5%, 5% and 7.5% ratios replace by CPJ-CEM II/A cement. The specimens were tested by destructive and non-destructive testing and for chemical resistance to acid solutions at different concentrations. From this study, it was found that the PET-modified mortars exposed to aggressive environments showed better resistance to chemical attack than unmodified one without substantially affecting the mechanical strength in tap water and UPV decreases as the proportion of PET waste in the mix increases. The addition of PET to the modified mortars, means reducing the penetration of aggressive agents. The formations which appear such as different calcium salts were determined by TG/dTG analysis. So, these composites are often used as low-cost materials for preventing chemical attacks or repairing various reinforced concrete structures exposed to aggressive environments where high resistance to acid is required and to both reduce sound intensity and dampen vibrations.

Keywords

Keywords: Chemical Attacks, Mechanical Strength, PET, Polymer-Mortar Composites, TG/DTG, Ultrasonic pulse velocity.

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