Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Mateus E.G. Dobrovolski"'
Autor:
Ronaldo A. Medeiros-Junior, Amanda V. Trisotto, Mateus E.G. Dobrovolski, Nathalia C. S. Santos, Priscila Ongaratto Trentin
Publikováno v:
International Journal of Civil Engineering. 19:1369-1381
This article aims to evaluate the mass transport properties in concretes with different contents of polypropylene microfiber (0% and 1%, by concrete volume) and crystalline admixture (0%, 1%, and 3%, by cement mass). Water absorption by immersion, wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99807e1d8c6c9179f851d2ac650dc0ed
https://doi.org/10.1007/s40999-021-00646-4
https://doi.org/10.1007/s40999-021-00646-4
Publikováno v:
Construction and Building Materials. 308:125018
Internal sulfate attack (ISA) occurs in cement composites due to the presence of mineral sulfide in aggregates, such as pyrite (FeS2). The oxidation of the pyrite releases sulfate ions, which react with hydrated phases of Portland cement and produce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87e6c8f8b5884f5ec836acf04872bda9
https://doi.org/10.1016/j.conbuildmat.2021.125018
https://doi.org/10.1016/j.conbuildmat.2021.125018
Autor:
Eduardo Pereira, Ronaldo A. Medeiros-Junior, Guilherme da Silva Munhoz, Mateus E.G. Dobrovolski
Publikováno v:
Cement and Concrete Composites. 117:103905
This article evaluated the effect of improved autogenous mortar self-healing in the alkali-aggregate reaction (AAR). Prismatic mortar specimens were cast with different contents of polypropylene microfiber and crystalline admixture. The crack-inducti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::895f6cc5126e46e999d92d1a234872c9
https://doi.org/10.1016/j.cemconcomp.2020.103905
https://doi.org/10.1016/j.cemconcomp.2020.103905
Autor:
Roberto Luiz Dias, Mateus E.G. Dobrovolski, Guilherme da Silva Munhoz, Bruno Leandro Nenevê, Marcelo Henrique Farias de Medeiros, Jayson Pereira Godinho
Publikováno v:
Simpósio Paranaense de Patologia das Construções.
Visto que as instalacoes de tratamento de aguas servidas estao sujeitas a corrosao induzida por micro-organismos devido ao ataque por acido sulfurico (H 2 SO 4 ), esse estudo buscou testar o silicato de sodio neutro (Na 2 SiO 3 ) como solucao mitigad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34e85f92eba873d66839f90bc6e89b54
https://doi.org/10.4322/2526-7248.068
https://doi.org/10.4322/2526-7248.068
Autor:
Bruno Leandro Nenevê, Guilherme da Silva Munhoz, Roberto Luiz Dias, Marcelo Henrique Farias de Medeiros, Jayson Pereira Godinho, Mateus E.G. Dobrovolski
Publikováno v:
Simpósio Paranaense de Patologia das Construções.
Dentre os ataques mais severos as matrizes cimenticias, destaca-se o decorrente do acido sulfurico (H 2 SO 4 ), que pode desenvolver-se em sistemas de coleta de esgoto. Para tanto, os agentes cristalizantes sao capazes de trazer resultados positivos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4570c8105fb3e3fd055e3c0684ff88b3
https://doi.org/10.4322/2526-7248.043
https://doi.org/10.4322/2526-7248.043