| Titre : |
Carbonation of concrete and ways of anticipation |
| Type de document : |
texte imprimé |
| Auteurs : |
Ketan G. Chitte, Auteur ; J. S. Narkhede, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 51-56 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Carbonatation sont les bases qui sont carbonatées, éventuellement à l'air, celui-ci contenant un peu de ce gaz.
Matériaux cimentaires -- Détérioration
Matériaux cimentaires -- Revêtements protecteurs
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Carbonation is process associated with deterioration of concrete by the means of chemical reaction in between atmospheric CO2 and unreached Ca(OH)2 with presence of water, as a result the alkalinity value of concrete reduces. This reduced pH value leads to a break- down in passivity layer around reinforcement causing corrosion of iron bar, cracking of concrete and reduced compressive strength with ultimately leads to reduction in service life. Present paper have glance over the deterioration of concrete by the means of various dispute of weathering. Study include discussion over various physical and chemical test methods to determination of depth of carbonation of concrete using phenolphthalein as indicator after accelerated and physical exposure. Silicon coating, bituminous coating, applied acrylic coatings are used for protection against diffusion of CO2. |
| Note de contenu : |
- CARBONATION OF CONCRETES : Measure area of carbonation - Factors affecting rate of carbonation
- PROTECTION SYSTEMS FOR ANTI CARBONATION
- LINING THE CAPILLARIES WITH A HYDROPHOBIC MATERIAL
- MEMBRANE SYSTEM
- FIGURES : 1. Carbonation-induced corrosion often occurs on building and debonded surface open concrete cover - 2. Carbonation process - 3. Relationship between carbonation depth and compressive strength for various concretes - 4. Comparison of carbonation depth with or without paint coating area in same structure
- TABLES : 1. Deterioration process of carbonation - 2. General requirements of anti-carbonation coatings 22 |
| En ligne : |
https://drive.google.com/file/d/1tvFJXfOwiurrrq_iIqWolHLMUupgL-n9/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28011 |
in PAINTINDIA > Vol. LXVI, N° 12 (12/2016) . - p. 51-56
Aller sur edunet
Accueil
Carbonation of concrete and ways of anticipation in PAINTINDIA, Vol. LXVI, N° 12 (12/2016)
