Mechanical Evaluation Of The Binder Modified
Mostrando 1-5 de 5 artigos, teses e dissertações.
-
1. Evaluation of Filler Effects on the Dynamic Mechanical Behavior of HTPB-Elastomer Used as Binder in Exemplary Composite Formulations
ABSTRACT: This study aims to evaluate the dynamic mechanical properties of a binder, used in composite propellants, with increasing amount of different solid fillers. Dynamic Mechanical Analysis (DMA) is performed to determine the region of glass-rubber transition temperature (Tg). Further parameters were obtained from the description of the loss factor curv
J. Aerosp. Technol. Manag.. Publicado em: 2017-09
-
2. AvaliaÃÃo do desempenho de ligante asfÃltico modificado por poli (Ãcido fosfÃrico) (PPA) e efeitos da adiÃÃo do lÃquido da casca da castanha de caju (LCC). / Performance evaluation of asphalt binder modified poly (phosphoric acid) (PPA) and effects adding the liquid from the bark of cashew (LCC)
The AC with 50/70 penetration grade (Petrobras - LUBNOR), pure and modified by polyphosphoric acid (PPA), was analyzed by rheological tests (viscosity and DSR), thermal analysis (TGA and DSC), spectrometric (NMR and FTIR) and chromatographic (TLC-FID and GPC) methods. The interaction of AC with PPA was investigated from the reactions of its fractions (aromat
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/12/2011
-
3. Efeito de fibras sintéticas nas propriedades de ligantes e concretos asfálticos
The asphalt cement plays a major role in hot mix asphalts (HMA) by bonding the mineral aggregates and conferring impermeability. Despite the relatively small percentage of asphalt cement in hot mixes, the mechanical properties of asphalt layers are highly dependent on the quality of the binder. The physical and rheological properties of asphalt binders can b
Publicado em: 2010
-
4. Evaluation of asphalt mixtures produced with conventional peruvian asphalt binder PEN 60/70 and SBS polymer-modified type I 60/60 and PG 76-22 / Avaliação de misturas produzidas com ligantes asfálticos peruanos convencional PEN 60/70 e modificados por polímero SBS tipo I 60/60 e PG 76-22
The main goal of this work is the evaluation of the behavior of conventional peruvian asphalt binder AC PEN 60/70 and SBS polymer-modified asphalts I 60/60 and PG 76-22, when used in hot-mix asphalt (HMA), under both conditions with and without short-term aging. It aims also to establish the asphalt binder performance grade (PG), which is based on the weathe
Publicado em: 2007
-
5. Influence evaluation of some factors in the mechanical properties of binder mixtures using design and analysis of asymmetric fractional factorial experiments technique / Avaliação da influência de alguns fatores nas propriedades mecânicas de misturas asfálticas densas, à luz da técnica de planejamento e análise de experimentos fatoriais fracionários assimétricos
This work deals with the influence of some factors in the mechanical behavior of asphalt mixtures stability and flexibility. Three types of binders were tested, conventional one, modified with 4,5% of SBS and modified with 20% of recycled tire rubber. Two aggregate gradations were tested, center of B and C gradations of DNER (1997). Four binder contents were
Publicado em: 2004