Aakash S. Pawar

L'utilisation de granulats recycl s (GR) dans le b ton peut tre d crite en termes de protection de l'environnement et d' conomie. L'utilisation de granulats recycl s dans les activit s de construction a t pratiqu e par les pays europ ens d velopp s et galement par certains pays asiatiques. Ce projet pr sente les r sultats d'une tude exp rimentale sur les propri t s m caniques du b ton d'agr gats recycl s (RAC) par rapport au b ton d'agr gats naturels (NAC).

Die Verwendung von rezyklierten Gesteinsk rnungen (RA) in Beton kann unter dem Gesichtspunkt des Umweltschutzes und der Wirtschaftlichkeit beschrieben werden. Die Verwendung von rezyklierten Gesteinsk rnungen im Bauwesen ist in den entwickelten europ ischen L ndern und auch in einigen asiatischen L ndern bereits Praxis. In diesem Projekt werden die Ergebnisse einer experimentellen Studie ber die mechanischen Eigenschaften von Beton mit rezyklierten Zuschlagstoffen (RAC) im Vergleich zu Beton mit nat rlichen Zuschlagstoffen (NAC) vorgestellt.

A utiliza o de agregados reciclados (AR) no bet o pode ser descrita em termos de prote o ambiental e econ micos. A aplica o de agregados reciclados em actividades de constru o tem sido praticada por pa ses europeus desenvolvidos e tamb m por alguns pa ses asi ticos. Este projeto relata o resultado de um estudo experimental sobre as propriedades mec nicas do bet o de agregados reciclados (RAC) em compara o com o bet o de agregados naturais (NAC).

L'uso di aggregati riciclati (RA) nel calcestruzzo pu essere descritto in termini di protezione ambientale ed economici. L'applicazione di aggregati riciclati nelle attivit di costruzione stata praticata dai Paesi europei sviluppati e anche da alcuni Paesi asiatici. Questo progetto riporta i risultati di uno studio sperimentale sulle propriet meccaniche del calcestruzzo con aggregati riciclati (RAC) rispetto al calcestruzzo con aggregati naturali (NAC).

Nanotechnology has emerged as one of the leading new innovative technologies with a great potential for treating wastewater in a more effective and efficient manner than methods that have been previously used. Nanotechnology is the study and implementation of nano materials for engineering purposes. Nano materials are characterized at least in one of three measurements by manometer scale, concerning both the sample and structural elements of the material. In a developing country like India, industries emphasis more on production and revenue generation, and do not give importance to the environmental aspects of their operations. The major form of pollution is water pollution. This is due to the discharge of improperly treated waste waters from industries into natural water bodies. In this study, tests are conducted to study the treatment efficiency of TiO2 to treat the industrial wastewater in a continuous treatment process. The samples were tested for various parameters before and after treatment. The results implied that TiO2 was successful in treating the samples from dairy, textile industries.