Destructive And Non-destructive Tests Of Pet-mortar Composites: Characterization By Tg/dtg Analysis
2016
Articles Scientifiques Et Publications
ASJP
Autre

École Nationale Polytechnique - Alger

A
Ahmed Soufiane, Benosman
H
Hamed, Taïbi
M
Mohamed, Mouli
Y
Yassine, Senhadji
I
Ilies, Bahlouli

Résumé: 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.

Mots-clès:

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

Publié dans la revue: Communication science et technologie

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