Author: Christiane Gerbaud AgnerayPublisher:
ISBN:
Category :
Languages : fr
Pages : 66
Book Description
Contribution à l'étude des composés formés au cours de la décomposition thermique d'une résine du groupe des aminoplastes
Author: Christiane Gerbaud AgnerayPublisher:
ISBN:
Category :
Languages : fr
Pages : 66
Book Description
CONTRIBUTION A L'ETUDE DE LA DEGRADATION THERMIQUE DE COMPOSITES A BASE DE RESINE SILICONE
Author: DOMINIQUE.. POUTIERS-MARTINPublisher:
ISBN:
Category :
Languages : fr
Pages :
Book Description
LES TRAVAUX PRESENTES DANS CETTE THESE SONT RELATIFS A LA THERMODEGRADATION, EN MILIEU NEUTRE OU OXYDANT, DE MATERIAUX COMPOSITES A MATRICE SILICONE RTV 630 POUVANT ETRE UTILISES COMME ISOLANTS THERMIQUES ABLATIFS. QUATRE CHARGES ONT ETE CHOISIES: POUDRE DE SIALON, POUDRE DE CARBURE DE SILICIUM, FIBRES DE CARBONE, FIBRES DE CARBURE DE SILICIUM. LA MATRICE SILICONE RTV 630 CONTIENT ELLE-MEME DE LA POUDRE DE QUARTZ. LA TENUE THERMIQUE DE LA MATRICE A D'ABORD ETE ETUDIEE, PUIS LE COMPORTEMENT THERMIQUE DES COMPOSITES FORMES A PARTIR DE LA MATRICE ASSOCIEE A UNE ET DEUX CHARGES. PLUSIEURS TECHNIQUES DE THERMODEGRADATION ET D'ANALYSE ONT ETE EMPLOYEES. LA PYROLYSE A ETE ETUDIEE PAR A.T.G. DEPUIS LA TEMPERATURE AMBIANTE JUSQU'A 2000#OC, L'OXYDATION JUSQU'A 1000#OC. LES THERMOGRAMMES OBTENUS SONT ANALYSES PAR C.P.G., LES RESIDUS OBSERVES ET ANALYSES. ENFIN, QUELQUES PROPRIETES PHYSIQUES ONT ETE MESUREES SUR LES RESIDUS DE LA PYROLYSE, PRESENTANT UN INTERET PARTICULIER DANS LE CADRE DE L'ISOLATION THERMIQUE
Dictionary of Civil Engineering
Author: Jean-Paul KurtzPublisher: Springer Science & Business Media
ISBN: 0306483173
Category : Technology & Engineering
Languages : en
Pages : 1520
Book Description
I am pleased to present a work which marks a milestone in the history of public works and, more precisely, in that of permanent structures—a comprehensive dictionary of Civil Engineering terms. Since the beginning of time, Man has always tried to find a means to clear the obstacles which nature erected to displace him. With the first tree trunk thrown across a river, man sought to improve the crossing structure. After the invention of the wheel, and to satisfy his thirst for conquest (Roman ways), and comfort (aqueducts), man built bridges that became a preremptory necessity to move quickly. Thus, Man started to build wooden and masonry works. With the passing centuries, the builders became masters in the art of building masonry works. Then came the Industrial Revolution and the advent of the steel (1864), which was closely followed by the invention of the reinforced concrete (1855). The need for railways and improving the road network inspired great works of crossing such as viaducts and tunnels. The boom of the railway network and the development of the car required the construction of an increasing number of new structures. This phenomenon continues today with hundreds of structures built each year throughout the world.