Data/hora: 07/06/2024 08:29:32

Provedor de dados: | 42
País: | Brazil
Título: | Characterization of granite and limestone powders for use as fillers in bituminous mastics dosage
Autores: | BARRA,BRENO; MOMM,LETO; GUERRERO,YADER; BERNUCCI,LIEDI.
Data: | 2014-06-01
Ano: | 2014
Palavras-chave: | Characterization; Fillers; Granite; Limestone; Bituminous mastics.
Resumo: | This paper discusses the importance of studies on materials known as fillers from different mineral origins, used in asphalt mixes, specifically in the formulation of mastics. The research was carried out on samples of limestone and granite rock filler and asphalt binder (50/70). The samples were evaluated through semiquantitative chemical analyses by X-ray fluorescence, granulometry by low angle laser emission, scanning electron microscopy, softening point tests, penetration tests, and aggregate-asphalt binder and aggregate-mastic adhesion tests. The results highlighted convergent trends, indicating that the active behavior of the fillers in the mastic formulation is not related to the size of the particles, but rather to their form, surface texture, specific surface area and mineralogical nature, allowing the filler activity concept to be divided into two components: physical (hardening) and chemical (adhesion).
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000200995
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/0001-3765201420130165
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.86 n.2 2014
Fonte: | info:eu-repo/semantics/openAccess