Assessment of the pozzolanic activity of ornamental stone waste after heat treatment and its effect on the mechanical properties of concretes

Autor: S. H. M. MITTRI, M. K. DEGEN, G. L. VIEIRA, J. S. VAZZOLER, L. H. C. H. RODRIGUES

Publikováno v: Revista IBRACON de Estruturas e Materiais, Vol 11, Iss 6, Pp 1186-1207 (2018)

Abstract This paper aims at evaluating the pozzolanic properties of ornamental stone processing waste after heat treatment at 1200 °C (HTOSPW) and analyzing the influence on the mechanical strength of concrete produced with HTOSPW addition at the co

Externí odkaz: https://doaj.org/article/9223d27806e0411390fcf86519c83371

Heat treatment of processing sludge of ornamental rocks: application as pozzolan in cement matrices

Autor: J.G. Uliana, J. L. Calmon, G. L. Vieira, J. E. S. L. Teixeira, E. Nunes

Publikováno v: Revista IBRACON de Estruturas e Materiais, Vol 8, Iss 2, Pp 100-123

The sector of ornamental rocks produces significant volume of waste during the sawing of the blocks and demand to find ways to recycle, given its environmental impact. Considering the possibilities of use of industrial by-products as mineral admixtur

Externí odkaz: https://doaj.org/article/43ee2c4375474356bfc1e6989fd92310

Study of cement pastes rheological behavior using dynamic shear rheometer

Autor: J. E. S. L. Teixeira, V. Y. Sato, L. G. Azolin, F. A. Tristão, G. L. Vieira, J. L. Calmon

Publikováno v: Revista IBRACON de Estruturas e Materiais, Vol 7, Iss 6, Pp 922-939

Concrete, in its fresh state, has flow characteristics that are crucial to its proper launch and densification. These characteristics are usually measured through empirical testing as the slump test, but this test does not quantify completely the mat

Externí odkaz: https://doaj.org/article/ee187a8109b64e3eb370f2d6da4e9832

In vitro studies of the antibacterial activity of Copaifera spp. oleoresins, sodium hypochlorite, and peracetic acid against clinical and environmental isolates recovered from a hemodialysis unit

Autor: Carlos Henrique Gomes Martins, Thamires Chiquini Bianchi, Regina Helena Pires, Rodrigo Cassio Sola Veneziani, Jairo Kenupp Bastos, Rosimara G. L. Vieira, Larissa de Oliveira Silva, Sérgio Ricardo Ambrósio, Thaís da Silva Moraes

Publikováno v: Antimicrobial Resistance and Infection Control
Antimicrobial Resistance and Infection Control, Vol 7, Iss 1, Pp 1-13 (2018)
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Background Patients submitted to hemodialysis therapy are more susceptible to infection, especially to infection by Gram-positive bacteria. Various research works have attempted to discover new antimicrobial agents from plant extracts and other natur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81fad2789f3401870e9632f043623f4e
https://doi.org/10.1186/s13756-018-0307-3

RISCOS FÍSICOS E QUÍMICOS EM LABORATÓRIO DE ANÁLISES CLÍNICAS DE UMA UNIVERSIDADE

Autor: Branca M. de O. Santos, Carlos Henrique Gomes Martins, Rosimara G. L. Vieira

Publikováno v: Medicina, Vol 41, Iss 4 (2008)

Modelo do estudo: exploratório, do tipo estudo de caso. Objetivos: identificar os riscos físicos e químicos a que estão expostos os trabalhadores do Laboratório de Análises Clínicas de uma Universidade; investigar a ocorrência, os tipos e as

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c819e4eec360095ce192f5beedfa9c9c
https://doi.org/10.11606/issn.2176-7262.v41i4p508-515